Station Overview Station Location
Station Number CO-SU-6 Latitude 39.6239
Station Name Silverthorne 2.1 WSW Longitude -106.1018
County Summit Elevation (ft) 9684



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 19 1.36 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 19 1.60 1.16 12 1.16 12 0.00 0 0 6 0 18.9 6 8
Dec 19 2.03 2.84 31 2.84 31 0.00 0 0 15 4 41.3 15 31
Jan 20 1.36 2.37 30 2.08 25 0.29 5 1 17 4 39.1 17 25
Feb 20 1.39 4.57 29 4.57 29 0.00 0 0 21 0 60.9 21 29
March 20 2.17 1.62 30 1.62 30 0.00 0 0 17 4 21.9 17 30
April 20 2.00 3.12 30 3.12 30 0.00 0 0 16 3 37.5 15 30
May 20 1.81 1.30 31 1.30 31 0.00 0 0 10 0 3.1 4 3
June 20 1.35 1.51 30 1.51 30 0.00 0 0 14 2 3.5 1 1
July 20 1.74 1.98 29 1.98 29 0.00 0 0 12 4 0.0 0 0
Aug 20 2.23 0.76 30 0.76 30 0.00 0 0 8 4 0.0 0 0
Sept 20 1.58 0.57 30 0.57 30 0.00 0 0 6 2 4.8 3 3
Water Year Totals: 20.62" 21.80" 312 days 21.51" 307 0.29" 5 days 1 142 days 27 days 231.0" 99 days 160 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2019
10/2/2019
10/3/2019
10/4/2019
10/5/2019
10/6/2019
10/7/2019
10/8/2019
10/9/2019
10/10/2019
10/11/2019
10/12/2019
10/13/2019
10/14/2019
10/15/2019
10/16/2019
10/17/2019
10/18/2019
10/19/2019
10/20/2019
10/21/2019
10/22/2019
10/23/2019
10/24/2019
10/25/2019
10/26/2019
10/27/2019
10/28/2019
10/29/2019
10/30/2019
10/31/2019
11/1/2019
11/2/2019
11/3/2019
11/4/2019
11/5/2019
11/6/2019
11/7/2019
11/8/2019
11/9/2019
11/10/2019
11/11/2019
11/12/2019
11/13/2019
11/14/2019
11/15/2019 0.00
11/16/2019 0.00
11/17/2019 0.12
11/18/2019 0.00
11/19/2019
11/20/2019 0.00
11/21/2019 0.06
11/22/2019 0.60
11/23/2019 0.11
11/24/2019 0.00
11/25/2019 0.00
11/26/2019 0.03
11/27/2019
11/28/2019
11/29/2019
11/30/2019 0.24
12/1/2019 0.07
12/2/2019 0.00
12/3/2019 0.00
12/4/2019 0.06
12/5/2019 0.01
12/6/2019 0.07
12/7/2019 0.00
12/8/2019 0.05
12/9/2019 0.52
12/10/2019 0.05
12/11/2019 T
12/12/2019 0.05
12/13/2019 0.84
12/14/2019 0.35
12/15/2019 0.65
12/16/2019 0.00
12/17/2019 0.00
12/18/2019 0.00
12/19/2019 0.00
12/20/2019 T
12/21/2019 0.00
12/22/2019 0.00
12/23/2019 0.00
12/24/2019 0.00
12/25/2019 0.03
12/26/2019 T
12/27/2019 T
12/28/2019 0.02
12/29/2019 0.06
12/30/2019 0.01
12/31/2019 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2020 0.01
1/2/2020 0.29
1/3/2020 0.10
1/4/2020 T
1/5/2020 0.00
1/6/2020 0.15
1/7/2020 0.01
1/8/2020 0.00
1/9/2020 0.06
1/10/2020 0.11
1/11/2020 0.01
1/12/2020 **
1/13/2020 **
1/14/2020 **
1/15/2020 **
1/16/2020 0.29
1/17/2020 T
1/18/2020 0.27
1/19/2020 T
1/20/2020 T
1/21/2020 0.00
1/22/2020 0.20
1/23/2020 0.62
1/24/2020
1/25/2020 0.08
1/26/2020 0.01
1/27/2020 0.00
1/28/2020 0.05
1/29/2020 0.01
1/30/2020 0.01
1/31/2020 0.09
2/1/2020 0.00
2/2/2020 0.00
2/3/2020 0.00
2/4/2020 0.49
2/5/2020 0.02
2/6/2020 0.08
2/7/2020 0.71
2/8/2020 0.20
2/9/2020 0.42
2/10/2020 0.49
2/11/2020 0.10
2/12/2020 0.01
2/13/2020 0.17
2/14/2020 0.01
2/15/2020 0.00
2/16/2020 0.11
2/17/2020 0.34
2/18/2020 0.21
2/19/2020 0.00
2/20/2020 0.03
2/21/2020 0.00
2/22/2020 0.00
2/23/2020 0.41
2/24/2020 0.49
2/25/2020 0.24
2/26/2020 0.01
2/27/2020 0.02
2/28/2020 0.01
2/29/2020 0.00
3/1/2020 0.01
3/2/2020 0.17
3/3/2020 0.05
3/4/2020 0.00
3/5/2020 0.00
3/6/2020 0.00
3/7/2020 0.00
3/8/2020 0.00
3/9/2020 0.05
3/10/2020 0.05
3/11/2020 0.05
3/12/2020 0.01
3/13/2020 T
3/14/2020 0.09
3/15/2020
3/16/2020 T
3/17/2020 0.00
3/18/2020 0.00
3/19/2020 0.01
3/20/2020 0.15
3/21/2020 0.10
3/22/2020 0.21
3/23/2020 0.05
3/24/2020 0.28
3/25/2020 T
3/26/2020 0.00
3/27/2020 0.00
3/28/2020 0.28
3/29/2020 T
3/30/2020 0.01
3/31/2020 0.05
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.00
4/2/2020 0.00
4/3/2020 0.14
4/4/2020 0.05
4/5/2020 0.00
4/6/2020 0.00
4/7/2020 0.00
4/8/2020 0.00
4/9/2020 0.00
4/10/2020 0.07
4/11/2020 0.00
4/12/2020 0.40
4/13/2020 0.59
4/14/2020 0.20
4/15/2020 0.02
4/16/2020 0.23
4/17/2020 0.37
4/18/2020 T
4/19/2020 0.05
4/20/2020 0.13
4/21/2020 0.03
4/22/2020 0.00
4/23/2020 T
4/24/2020 0.56
4/25/2020 0.06
4/26/2020 T
4/27/2020 0.21
4/28/2020 0.01
4/29/2020 0.00
4/30/2020 0.00
5/1/2020 0.01
5/2/2020 0.00
5/3/2020 0.05
5/4/2020 0.12
5/5/2020 0.03
5/6/2020 0.00
5/7/2020 0.00
5/8/2020 0.00
5/9/2020 0.00
5/10/2020 0.00
5/11/2020 0.00
5/12/2020 0.47
5/13/2020 0.00
5/14/2020 0.00
5/15/2020 0.00
5/16/2020 0.03
5/17/2020 0.00
5/18/2020 0.00
5/19/2020 0.00
5/20/2020 0.00
5/21/2020 0.00
5/22/2020 0.00
5/23/2020 0.00
5/24/2020 0.00
5/25/2020 0.50
5/26/2020 0.00
5/27/2020 0.00
5/28/2020 0.05
5/29/2020 0.00
5/30/2020 0.02
5/31/2020 0.02
6/1/2020 0.01
6/2/2020 0.00
6/3/2020 0.00
6/4/2020 0.00
6/5/2020 0.13
6/6/2020 0.05
6/7/2020 0.11
6/8/2020 0.00
6/9/2020 0.27
6/10/2020 T
6/11/2020 0.00
6/12/2020 0.00
6/13/2020 0.00
6/14/2020 0.04
6/15/2020 0.00
6/16/2020 0.00
6/17/2020 0.00
6/18/2020 0.00
6/19/2020 0.39
6/20/2020 0.10
6/21/2020 0.00
6/22/2020 0.02
6/23/2020 0.15
6/24/2020 0.02
6/25/2020 0.00
6/26/2020 0.18
6/27/2020 0.02
6/28/2020 0.00
6/29/2020 0.02
6/30/2020 T
Day of YearDaily PrcpMultiday Prcp
7/1/2020 T
7/2/2020 0.00
7/3/2020 0.00
7/4/2020 0.02
7/5/2020 0.38
7/6/2020 0.00
7/7/2020 0.00
7/8/2020 0.00
7/9/2020 0.00
7/10/2020 0.00
7/11/2020 0.00
7/12/2020 0.00
7/13/2020 0.17
7/14/2020
7/15/2020 0.21
7/16/2020 0.01
7/17/2020 T
7/18/2020 T
7/19/2020 0.00
7/20/2020 T
7/21/2020 0.00
7/22/2020 0.00
7/23/2020 0.01
7/24/2020 0.21
7/25/2020 0.10
7/26/2020 0.55
7/27/2020 0.09
7/28/2020 0.00
7/29/2020 0.17
7/30/2020 0.06
7/31/2020
8/1/2020 T
8/2/2020
8/3/2020 T
8/4/2020 0.00
8/5/2020 0.00
8/6/2020 0.00
8/7/2020 0.00
8/8/2020 0.00
8/9/2020 0.00
8/10/2020 0.00
8/11/2020 0.00
8/12/2020 0.00
8/13/2020 0.01
8/14/2020 0.00
8/15/2020 0.00
8/16/2020 0.00
8/17/2020 0.00
8/18/2020 0.00
8/19/2020 T
8/20/2020 0.01
8/21/2020 0.02
8/22/2020 0.00
8/23/2020 0.00
8/24/2020 0.00
8/25/2020 T
8/26/2020 0.01
8/27/2020 0.15
8/28/2020 0.00
8/29/2020 0.06
8/30/2020 0.42
8/31/2020 0.08
9/1/2020 0.11
9/2/2020 0.00
9/3/2020 0.00
9/4/2020 0.00
9/5/2020 0.00
9/6/2020 0.00
9/7/2020 0.00
9/8/2020 T
9/9/2020 0.28
9/10/2020 0.06
9/11/2020 0.09
9/12/2020 T
9/13/2020 0.00
9/14/2020 0.00
9/15/2020 0.00
9/16/2020 0.00
9/17/2020 0.00
9/18/2020 0.00
9/19/2020 0.00
9/20/2020 0.00
9/21/2020 0.02
9/22/2020 0.00
9/23/2020 0.01
9/24/2020 0.00
9/25/2020 0.00
9/26/2020 0.00
9/27/2020 0.00
9/28/2020 0.00
9/29/2020 0.00
9/30/2020 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
11/15/2019 8:50 AM 0.00 0.0 M 0.0 M 111519 0850 Cs SCT v BKN 20+ mi 40º 67% RH NE 0+13 Tmxmn 48 21ºF Cs BKN All day Snow depth 0.0 Cover 30% 0-10 inches
11/16/2019 7:00 AM 0.00 0.0 M 0.0 M 1116190700 AcL SCT Cs BKN 20+ mi 34º 51% RH NW 2+ 17 kt Tmxmn 54 26ºF Cs SCT V BKN SNOW COVER 30% DEPTH 0-10 INCHES
11/17/2019 7:20 AM 0.12 1.7 M 1.7 M 1117190720 AcL E CLR S-W 20+ mi 23º 77% RH Calm + 25 kt Tmxmn 46 18ºF CFRNT PASS 1530 SW+ NEW 1.7 QPE 0.12 DEPTH 1.7 DRIFTS 10-12 INCHES SEND 2230 MAX 1530-1545
11/18/2019 7:00 AM 0.00 0.0 M 0.0 M 1118190700 Sc SCT 20+ mi 30º 84 % CALM + E 14 KT 40 18ºF AcL Cs SCT 30% cover 0-11 inches
11/20/2019 7:00 AM 0.00 0.0 M 0.0 M 1120190700 As OVC 20+ mi 30º73% RH Calm + W 1+15 kt Tmxmn 55 28ºF Cs SCT v BKN
11/21/2019 7:00 AM 0.06 1.7 M 1.7 M 1211190700 Sc SCT SW- 15 mi 26º 92% Calm + NW 5 KT TMXMN 37 28ºF Ns S- - S- 0930-1900 New 1.7 Depth 1.7 QPE 0.06 INCHES
11/22/2019 8:55 AM 0.60 6.5 M 9.5 M 1122190855 Ns S- S F 0.5 mi 24º 918 RH Calm + NW 6 kt Tmxmn 35 24ºF Ns S— S- All Day New 6.5 QPE 0.60 Depth 9.5 (8-11) inches Dentritic aggregates 2-6 mm diameter
11/23/2019 8:00 AM 0.11 3.0 M 10.4 M 1123190800 CLR 20+ MI 16º 78% RH CALM + NE 11 kt Tmxmn 27 15º F Ns S- - S- All day New 3.0 QPE 0.11 Depth 10.4 (8-12) inches 5 snow poles
11/24/2019 8:30 AM 0.00 0.0 M 7.4 M 1124190830 CLR Cs SCT 20+ mi 25º 59% RH CALM + N 5 KT Tmxmn 36 8ºF CLR 20+ vis Calm All Day Depth 7.4 (5-9) inches 5 snow poles
11/25/2019 8:00 AM 0.00 0.0 M 5.0 M 1125190800 Cs BKN thick to N 32º 38% RH SW 3 + W 21 kt Tmxmn 40 9ºF CLR Cs SCT all day Depth 5.0 (3-7) inches
11/26/2019 8:55 AM 0.03 0.5 M 5.2 M 1126190855 Ns SW- - - 5 mi 12º 75% RH WSW 2+NW 32 kt Tmxmn 36 10ºF Cs BKN 06-0900 then thick As Ns SCT SW on ridges S- - 1600 - 2100 T SW- 2100 to 0800 New 0.5 SWE 0.03 Depth 5.2 (4-7) inches
11/30/2019 8:00 AM 0.24 5.5 M 5.6 M 1130190800 Ns S- - 2 mi 13º 81% W 3+38 kt Tmxmn 38 12ºF Ac SCT Ns S S+ BS+ BGN 1500 -0300 S— 0300-0800 New 5.5 SWE 0.24 inches Depth 5.6 (2-8) SnowBoards 0-7 avg 5.5 new Drifting+
12/1/2019 7:00 AM 0.07 1.8 M 7.6 M 1201190700 CLR 20+ MI 0º 84% RH CALM + W 35 KT Ns SW- - BS+ AM Ns SCT SW- PM PERIODS S- S-- New 1.8 SWE 0.07 Depth 7.6 (4-12) INCHES DRIFT 18 IN
12/2/2019 7:00 AM 0.00 0.0 M 7.0 M 1202190700 Cs SCT v BKN 20+ mi 31º 62% RH W 7 + 33 kt Tmxmn 31 13ºF CLR all day Calm + 6 kt Wind picked up 2200-0700 Depth 7.0 (3-12) inches
12/3/2019 6:00 AM 0.00 0.0 M 6.0 M 1203190600 Sc SCt SW- - 10 mi 28 80% RH W 5 + 33 kt Tmxmn 39 13ºF CLR Cs SCT AM Ac As 1600-1900 layer Depth 6.0 in
12/4/2019 8:00 AM 0.06 1.0 M 5.8 M 1204190800 AS AcL BKN V SCT 20+ MI 24º 70% RH CALM + 30 kt Tmxmn 41 20ºF Ns SW- 0700-1100 Sc Ac SCT v BKN New 1.0 SWE 0.06 Depth 5.8 (2-10) inches
12/5/2019 7:00 AM 0.01 0.1 M 5.6 M 1205190700 Ns SW- - 4 mi 24º 88% RH Calm + NW 12 kt Tmxmn 40 15ºF AcL Sct v BKN all day New 0.1 SWE 0.01 Depth 5.6 (2-10) inches
12/6/2019 7:00 AM 0.07 0.8 M 6.6 M 1206190700 SC SCT 20+ MI 21º 87% RH CALM + W 12 KT TMXMN 32 21ºF Ns S- - all day New 0.8 SWE 0.07 Depth 6.6 (3-11) inches
12/7/2019 7:00 AM 0.00 0.0 M 6.2 M 1207190700 AcL SCT 20+ mi 23º 53% RH Calm + NW 9 kt Tmxmn 39 21ºF Sc SCT Am CLR Cs SCT PM Depth 6.2 (1-11) inches 95% Cover
12/8/2019 7:00 AM 0.05 1.0 M 7.2 M 1208190700 Ns S- - F 5 mi 27º 91% Calm + NW 3+21 kt Tmxmn 43 17º F Sc BKN v OVC Sc BKN v SCT NEW 1.0 SWE 0.05 Depth 7.2 (2-12) inches SBGN 0400 S- - S-
12/9/2019 8:00 AM 0.52 6.5 M 14.2 M 1209190700 Ns S- - F 5 mi 27º 91% Calm + NW 3+21 kt Tmxmn 43 17º F Sc BKN v OVC Sc BKN v SCT NEW 6.5 SWE 0.52 Depth 14.2 (2-12) inches SBGN 0400 S- - S-
12/10/2019 7:00 AM 0.05 1.0 M 12.6 M 1210190850 Ns SW- BS 15 mi 22º 71% RH WNW 8+21 kt Tmxmn 22 15ºF SW- AM NEW 1.0 SWE 0.5 Depth 12.6 (8-17) inches BS BS+ Drifting
12/11/2019 7:00 AM T T M 11.0 M 1211190700 CLR AcL SCT 20+ 13º 72% RH Calm + NW 21 kt Tmxmn 33 12ºF Sc BKN SW- - Ac SCT CLR T new Depth 11.0 (6-16) inches
12/12/2019 7:00 AM 0.05 1.0 M 12.2 M 1212190700 Ns S- S 0.5 mi 22º 87% RH Calm + NW 21 kt Tmxmn 40 7ºF CLR AcL SCT CLR SBGN 0630 New 1.0 SWE .05 Depth 12.2 (7-17) INCHES Large dendritic aggregates 2-6 mm
12/13/2019 8:30 AM 0.84 11.0 M 20.4 M 1213190830 Ns S S- .5 mi 20º 91% RH Calm + W 29 kt Tmxmn 30 18º F Ns S- V S All DAY New 11.0 SWE 0.84 Depth 20.4 (15-25) inches Snow Boards 8-13 inches avg 11.0 Large dendritic aggregates 3-9 mm dia
12/14/2019 8:00 AM 0.35 5.7 M 20.8 M 1214190800 Ns X S— v S- .5 mi 24º 89% RH NW 2+ 15 kt Tmxmn 25 17ºF Ns S- v S+ all day New 5.8 SWE 0.35 Depth 20.8 (15-26) inches Snow boards 4.7 to 6.7 inches 1-3 mm dentrites and fractals
12/15/2019 8:00 AM 0.65 9.5 M 28.0 M 1215190800 St OVC 20+ mi 6º 89% RH Calm + W 25 kt Tmxmn 27 6ºF Ns S- v S+ All Day New 9.5 SWE 0.65 Depth 28 (22-32) inches Snow Bords 7-10.5 inches
12/16/2019 8:00 AM 0.00 0.0 M 23.8 M 1216100800 St As SCT 20+ mi -1º 87% RH Calm + NW 3 kt Tmxmn 20 -2ºF St As OVC all day Depth 23.8 (18-27) inches settling
12/17/2019 7:00 AM 0.00 0.0 M 23.4 M 1217190700 CLR 20+ MI -10ºF 82% RH CALM + N 13 kt Tmxmn 11 -10ºF St As SCT v BKN Depth 23.4 (17-26) inches VERY COLD
12/18/2019 8:00 AM 0.00 0.0 M 21.2 M 1218190800 CLR 20+ mi 8º 75% RH Calm + NW 6 kt Tmxmn 22 2ºF CLR As layer SCT on ridges Depth 21.2 (16-24) inches snow settling
12/19/2019 8:00 AM 0.00 0.0 M 20.4 M 1219190800 CS BKN 20+ MI 8º 77% RH CALM + S 7 KT TMXMN 34 2º F CLR Cs BKN Depth 20.4 (15-23) inches
12/20/2019 7:00 AM T T M 19.2 M 1220190700 Ns SW- - 10 mi 7º 85% RH Calm + SE 7 kt Tmxmn 30 7ºF Cs BKN v SCT CLR Depth 19.2 (14-22) inches
12/21/2019 7:00 AM 0.00 0.0 M 19.0 M 1221190700 AcL SCT 20+ mi 8º 75% RH Calm + NE 5 kt Tmxmn 32 2ºF Cs SCT Depth 19.0 (14-22) inches
12/22/2019 7:00 AM 0.00 0.0 M 18.2 M 1222190700 Cs BKN vOVC 20+ mi 24 52% Calm + W 14 kt Tmxmn 46 8º AcL AM CLR PM Depth 18.2 (13-21) inches melt sublimation
12/23/2019 7:00 AM 0.00 0.0 M 17.2 M 1223190830 As OVC 20+ mi 30º 35% RH CALM + NW 11 kt Tmxmn 49 20ºF Cs SCT v BKN all day Depth 17.2 (12-20) inches Cs BKN v ova all day
12/24/2019 8:00 AM 0.00 0.0 M 16.0 M 1224190800 As Cs OVC 20+ mi 22º 59% RH Calm + N 6 kt Tmxmn 52 22ºF As Cs BKN v OVC all day Depth 16.0 (10-19) inches melting
12/25/2019 8:00 AM 0.03 0.8 M 16.2 M 1225190800 Ns SCT v BKN SW- - 5 mi 25º 83% RH Calm + S 3 kt Tmxmn 52 23ºF SW- - 2100-2115 0.1 inch SW- 0400-0800 New 0.8 SWE 0.03 Depth 16.2 (10-20) inches3-5 mm Dentritic aggregates
12/26/2019 7:00 AM T T M 15.8 M 1226190700 Sc SCT v BKN 20+ mi 5º 86% RH Calm + NW 18 kt Tmxmn 34 5ºF Ns SW- - 07-09 Cs SCT CLR New T SWE T Depth 15.8 (10-19) inches
12/27/2019 8:55 AM T T M 15.7 M 1227190850 Ac Cs SCT v BKN 20+ mi 27º 48% RH Calm + NE 8 KT TMXMN 29 5ºF Sc SCT v BKN all day SW- - - 1130-1140 New T SWE T Depth 15.7 (10-19) inches
12/28/2019 7:00 AM 0.02 0.4 M 15.7 M 1228190700 Ns S- F 1 mi 10º 84% RH NNE 2+ SE 10 kt Tmxmn 32 9ºF Ac As BKN S- - BGN 0400 New 0.4 SWE 0.02 DEPTH 15.7 (10-19) INCHES
12/29/2019 7:00 AM 0.06 0.6 M 16.8 M 1229190700 Ns S- 1mi -1º 86% RH Calm + N 13 kt Tmxmn 17 -1ºF Ns S- S- - ALL DAY New 0.6 SWE 0.06 Depth 16.8 (11-20) inches
12/30/2019 7:00 AM 0.01 0.1 M 16.8 M 1230190700 CLR 20+ MI -9º 85% RH CALM + NE 8 KT Tmxmn 10 -9ºF As BKN SCT SW- - OROG CLDS NEW 0.1 SWE .01 DEPTH 16.8 (11-20) INCHES SW - - OCCASIONAL ALL DAY
12/31/2019 7:00 AM 0.00 0.0 M 16.8 M 1231190700 CLR 20+ MI -4º 84% RH CALM + NE 8 kt Tmxmn 15 -11ºF CLR all day Depth 16.8 (11-20) inches
1/1/2020 8:50 AM 0.01 0.1 M 16.5 M 0101200850 Ns SW- - 5 mi 24º 77% N 0+9 kt Tmxmn 29 -9ºF CLR Ac SCT CLR all day New 0.1 SWE .01 Depth 16.5(11-20) inches SW- - BGN 0730
1/2/2020 7:00 AM 0.29 6.5 M 21.4 M 0102200700 Sc Ns SCT SW- - 15 mi 10º 88% RH Calm + W 23 kt Tmxmn 30 10ºF Ns S- AM Sc Ns BKN PM SW- - BS NEW 6.5 SWE 0.29 Depth 21.4 (15-25) inches Snow boards 5.5-7.8; 4.5-8.2 inches S-- 0500-0800 S- V S 1000-2100
1/3/2020 7:00 AM 0.10 1.5 M 22.5 M 0103200700 Ns S- 2 mi 11º 82% RH NW 2+ 8 kt Tmxmn 27 9ºF Sc Ns SW- - S- 2100 - 0700 S- - New 1.5 SWE 0.10 Depth 22.5 inches
1/4/2020 7:00 AM T T M 20.0 M 0104200700 Cs BKN 20+ mi 15º86% RH Calm + NW 12 KT Tmxmn 28 10º F Ns S- 04-0700 SW- - 07-1200 CLR PM T New T SWE Depth 20.0 (14.5-24) INCHES
1/5/2020 7:00 AM 0.00 0.0 M 18.4 M 0105200700 CLR 13º 69% RH W 2+28 KT TMXMN 43 10ºF Cs CLR All day BS BS+ PM Depth 18.4(13-22) inches BS BS+ 1800-0300 Drifting
1/6/2020 8:00 AM 0.15 3.0 M 21.6 M 0106200800 Ns S- - BS 2 mi 12º 80% RH WNW 6+30 kt Tmxmn 38 10º F SBGN 1900 S— S- all night BS Drifting new 3.0 SWE 0.15 Depth 21.6 (16-26) INCHES SNOWBOARDS 3.5-5.3; 2.0-3.8 INCHES
1/7/2020 8:55 AM 0.01 0.1 M 19.6 M 0107200855 CLR 20+ MI 25º 58% RH CALM + NW 21 KT TMXMN 22 10ºF Ns S- - AM CLR PM New 0.1 SWE 0.01 Depth 19.6 (14-24) inches BS Drifting
1/8/2020 7:00 AM 0.00 0.0 M 18.7 M 0108200700 Ac SCT 20+ mi 21º 53% rh Calm + NW 19 kt Tmxmn 37 18ºF CLR Depth 18.7 (13.5-23) inches
1/9/2020 8:00 AM 0.06 2.1 M 19.0 M 0109200800 Ns SCT SW- - Sc BKN 20+ mi 15º 71% RH Calm + W 28 kt Tmxmn 42 13ºF Ac SCT CLR BS PM SW- 2000-2200 NEW 2.1 SWE 0.06 Depth 19.0 (14-23) inches Snow boards 1.8-3.1; 0.0-2.6; 0.0-0.7 inches BS Drifting
1/10/2020 8:55 AM 0.11 2.0 M 20.8 M 0110200600 Ns As BKN v OVC SW- - SCT 5 mi 8º 87% RH CALM + ne 17 kt Tmxmn 24 8º F Ns Sc SW- - all day S- 2000-0800 New 2.0 SWE 0.11 inches Depth 20.8 (15-25) inches Snow Boards 2.0-2.1 inches
1/11/2020 7:00 AM 0.01 0.2 M 20.4 M 0111200800 Sc Ac BKN 20+ mi 6º 70% RH NW 1+ NE 9 kt Tmxmn 17 -3ºF Ns SW- - BS AM Sc BKN CLR PM New 0.2 SWE 0.01 Depth 20.4 (15-24) inches Snowboards: 0.1-0.3; 0-0.5; 0.1-0.2 inches
1/17/2020 8:55 AM T T M 20.6 M 0117200855 Ns SW- - 3 mi 25º 67% RH SSE 1 + SW 15 KT TMXMN 44 16ºF Cs As OVC all day Total Accum 12-17 Jan 5.5 new SWE 0.29; Depth 20.6 (14-26) inches AMS 100TH Annual Meeting BOS BS BS+ while in BOS Snow Boards 4.5-7; 0-6; 0-1.5 5-day accumulation
1/18/2020 8:55 AM 0.27 5.6 M 24.0 M 0118200855 As Cs OVC 20+ mi 12º 69% RH Calm + NW 20 kt Tmxmn 27 8º Snow Bands All Day S— 0900-1100 S v S+ 1145-1400; S+ 1400 BS; S+ BS 1517-1530 S- 1600 SEND 2300 NEW 5.6 SWE 0.27 Depth 24.0 Snowboards: 4.5-7; 3-6.5; 3-4 inches BS Drifting all day
1/19/2020 7:00 AM T T M 23.6 M 0129200700 AcL Fc SCT 20+ mi 5º 87% Calm + NW 9 kt Tmxmn 25 0ºF As Cs OVC Ns SW— -1200-1300 CLR T NEW DEPTH 23.6 (17-29) INCHES
1/20/2020 8:00 AM T T M 23.0 M 0120200800 Cs OVC 20+ 10º 71% RH NE 2+SE 9 kt Tmxmn 30 5º F AcL Fc SCT Fine Ice Crystals 1109-1115 CLR all day Depth 23.0 (16-27) inches
1/21/2020 8:55 AM 0.00 0.0 M 22.3 M 0121200855 As Cs OVC 20+ mi 28º68% RH Calm + SSW 8 kt Tmxmn 42 4º F Cs SCT Depth 22.3 (15.5-26.0) inches
1/22/2020 8:00 AM 0.20 4.3 M 27.4 M 0122200800 Ns S- X 0.5 mi 22º 91% Calm + SW 9 kt Tmxmn 35 22ºF As Cs OVC Ns SW- - PM S- BGN 1730 S- ALL NIGHT New 4.3 SWE 0.20 DEPTH 27.4 (20.5-31.5) INCHES
1/23/2020 8:00 AM 0.62 8.3 M 33.8 M 0123200800 Ns S- X 0.5 mi 16º 91% RH Calm + W 9 kt Tmxmn 25 15º Ns S- V S V S+ bands All day and night Atmospheric RIVER NW moisture flux storm New: 8.3 SWE 0.62 DEPTH 33.8 (27-38) INCHES Snowboards: 8.0-8.7; 7.3-8.3; 8.0-8.5 inches
1/25/2020 8:50 AM 0.08 1.5 M 29.8 M 0125200850 Ns S- - 3 mi 22º 86% RH NW 2 + 12 KT Tmxmn 37 14ºF Sc BKN v SCT Ns S- - S- 2030 - all night S— S- New 1.5 SWE 0.08 Depth 29.8 (24-33) inches
1/26/2020 8:00 AM 0.01 0.1 M 28.6 M 0126200800 AcL Cs SCT v BKN 20+ mi 20º 81% NW 2+ 12 kt Tmxmn 30 17ºF Ns S— Sc AcL SCT all day PM SW- - New 0.1 SWE 0.01 Depth 28.6 (23-33) inches
1/27/2020 8:00 AM 0.00 0.0 M 26.8 M 0127200800 As OVC 20+ mi 24º 83% RH Calm + NW 12 kt Tmxmn 39 17ºF AcL SCT all day Peak plumes but valley calm Depth 26.8 (21-31) inches melting
1/28/2020 8:50 AM 0.05 1.2 M 28.0 M 0128200850 Ns SW— SCT v BKN 5 mi 21º 73% RH NNE 2 + 12 KT Tmxmn 30 14º F St OVC Ns SW- - 1800-0800 New 1.2 SWE 0.05 Depth 28.0 (23-32) inches
1/29/2020 7:00 AM 0.01 0.2 M 26.9 M 0129200700 AsOVC SCT SW- - 10 mi 10º 91% RH CALM + N 11 KT TMXMN 28 8ºF Ns SW- - AM Ac BKN v SCT All Day
1/30/2020 8:00 AM 0.01 0.6 M 26.9 M 013020000 St Sc BKN As BKN 10 mi 9º 88% RH Calm + NW 8 kt Tmxmn 28 8ºF As OVC SW- - - AM Ac Cs SCT 1200-1700 Ns SW- - 2000-0600 New 0.6 SWE 0.01 Depth 26.9 (21.5-31) inches
1/31/2020 7:00 AM 0.09 1.8 M 28.2 M 0131200700 AcSCT 20+ mi 4º 87% RH Calm + N 15 kt Tmxmn 22 4ºF Sc Sc BKN Ns SW S PM S+ squall 1900-1930 1”/hr NEW 1.8 SWE 0.09 Depth 28.2 (22-32) inches Snow Course 2 km 37 (25-43) inches
2/1/2020 8:00 AM 0.00 0.0 M 27.7 M 0201200800 Ac Cs OVC 20+ mi 17º 88% RH Calm + NE 9 KT Tmxmn 28 3ºF As Cs BKN v OVC all day AR NNW flow Depth 27.7 (21.5-32) inches
2/2/2020 8:00 AM 0.00 0.0 M 26.8 M 0202200800 CLR 20+ MI 28º 38% RH CALM + NW 13 KT Tmxmn 42 16ºF As Cs BKN v OVC then PM BKN v SCT CLR night Depth 26.8 (20.5-30.5) inches
2/3/2020 8:00 AM 0.00 0.0 M 24.8 M 0203200800 Cu SCT 20+ mi 31º 36% RH WNW 8+19 kt Tmxmn 55 19º F CLR all day Fc 5-10 min Depth 24.8 (18-28) inches melting + sublimation
2/4/2020 8:00 AM 0.49 5.2 M 29.0 M 0204200800 Ns SW— SBGN 1200 S v S+ S- S —2100 SW- - 2100-0850 New 5.2 SWE 0.49 Depth 28.8 (23- 34) inches
2/5/2020 8:00 AM 0.02 0.2 M 29.0 M 0205200800 Ns As Layers SW- - New 0.2 SWE 0.02 Depth @9.0 (23-34) inches Max 18 Min T -16ºF
2/6/2020 8:00 AM 0.08 0.8 M 28.7 M 0205200700 Ns S- - F 9º 81% Calm + NE 9 kt Tmxmn 10 -15ºF Sc As OVC BKN All day S- - S- v S— Fine crystals BGN 2000 NEW 0.8 SWE .08 Depth 28.7 (23.5-32) inches
2/7/2020 8:55 AM 0.71 9.6 M 36.2 M 0207200855 Ns S- v S 24º 90% RH NNE 1+ NW 14 kt Tmxmn 24 14º Ns S— S- All Day S- v S+ 2100-0855 New 9.6 SWE 0.71 Depth 36.2 (31-42) inches Transition from 0.1 mm to dendritic aggregates 2 to 8 mm flakes as temp rose from 14 to 20ºF Snow Boards 9.4-10.1; 8.5-9.6; 9.0-9.5 inches
2/8/2020 8:00 AM 0.20 2.5 M 37.8 M 0208200800 Sc Ns As BKN SCT SW- 15 mi 25º 78% WNW 2+15 kt Tmxmn 27 19ºF Ns S- v S V S- - all day Bands of heavier snow New 3.0 SWE 0.35 Depth 37.8 (31-42) inches BS and Drifting
2/9/2020 7:00 AM 0.42 5.9 M 41.2 M 0209200700 Ns S- 0.5 mi 14º 09% RH Calm + NE 11 kt Tmxmn 37 14ºF Ac BKN v SCT AcL 0700-1900 Ns S- - v S- 1900-0700 ARiver New 5.9 SWE 0.42 Depth 41.2 (35-46) inches Snow Boards 5.8-6.9; 4.5-5.8; 5.0-5.8 inches BS Drifting yesterday afternoon
2/10/2020 8:00 AM 0.49 6.1 M 44.2 M 0210200800 Ns BKN SW- - 2 mi 10º 90% RH NW 1+ 4 kt Tmxmn 25 10ºF Ns S- v S V S+ all day Max 1200-1255 1405-1449 large dendritic aggregates and fractals 2-5 mm 0.5-1 mm Melting as it fell during the day New 6.1 SWE 0.49 Depth 44.2 (37-49) inches Snow Boards 6-6.9; 4.5-6.0; 5.5-6 inches
2/11/2020 8:55 AM 0.10 1.1 M 41.8 M 0211200855 CLR 20+ MI 5ºF 64% RH CALM + NE 11 kt Tmxmn 26 -1ºF Ns S- - AM As BKN 1830 Ns S- - New 1.1 SWE 0.10 Depth 41.8 (38-45) inches settling snow pack
2/12/2020 7:00 AM 0.01 0.1 M 40.2 M 0212200700 Ns SW- - 3 mi 9º 81% RH N 1+6 kt Tmxmn 24 -5ºF CLR All day As OVC PM New 0.1 SWE 0.01 Depth 40.2 934-44) INCHES SBGN 0645 SW- -
2/13/2020 7:00 AM 0.17 1.7 M 41.2 M 0213200700 Ns S- - 3 mi 9º 88% RH Calm + N 14 kt Tmxmn 21 5ºF Ns S— S- AM Ac Sc BKN Ns S- S— 1900-0700 New 1.7 SWE 0.17 Depth 41.2 (35-45) inches
2/14/2020 8:55 AM 0.01 0.1 M 38.8 M 0214200855 CLR 20+ MI 26º 62% NE 15 kt Tmxmn 26 8ºF Ns S- - Sc BKN v SCT CLR New 0.1 SWE 0.01 Depth 38.8 (33-43) inches
2/15/2020 8:00 AM 0.00 0.0 M 36.2 M 0215200800 Cu SCT 20+ mi 26º 49% RH W 10+30 kt Tmxmn 41 10º Windy all night 20-30 kt Depth 36.2 (30-39) inches Drifting Sublimation melting
2/16/2020 8:00 AM 0.11 2.1 M 37.2 M 0216200800 Ns S- - S- 1 mi 22º 86% RH NE 1+32 kt Tmxmn 31 21ºF Cu SCT AM Cu Sc BKN 1300-1700 SW- - Ns S- 1900-0800 BS Drifting all day Sublimation New 2.1 SWE 0.11 Depth 37.2 (31-41) INCHES snowboards: 2-5.1 wind pack base; 1.8-3.5 ice base; 1.9-3.0 powder base Dentritic aggregates 3-5 mm; fractals 1-2 mm
2/17/2020 8:00 AM 0.34 7.0 M 40.1 M 0217200800 AR Ns S- V S BS .5 MI 17º 87% RH W 8 + 33 KT Tmxmn 29 17ºF S- v S v S+ All day BS wind 10-33 kt Drifting New 7.0 SWE 0.34 Depth 40.1 (32-46) inches Snow boards: 9-13; 3-9; 0.5-4 inches
2/18/2020 8:50 AM 0.21 3.0 M 40.8 M 0218200850 Cu SCT 20+ mi 12º 75% RH Calm + NW 32 kt Tmxmn 26 9ºF Ns S- v S BS Drifting All Day New 3.0 SWE 0.21 Depth 40.8 (34-46) inches Snow boards: 2.2-4.5; 1.8-3.5; 1.5-2.5 inches
2/19/2020 8:00 AM 0.00 0.0 M 39.2 M 0219200800 As Cs BKN 20+ mi 20º 58% RH Clm + NE 7 its Tmxmn 24 2º Cu SCT AM As Cs OVC PM Depth 39.2 (32-44) inches
2/20/2020 7:00 AM 0.03 0.5 M 39.0 M 0220200700 CLR 20+ mi -4º 84% RH Calm + W 16 kt Tmxmn 32 -4ºF Cs As BKN v SCT AM Sc Ns SW- SCT 1500 S- 1800-2100 New 0.5 SWE 0.03 Depth 39.0 (32-44) INCHES
2/21/2020 7:00 AM 0.00 0.0 M 38.0 M 0221200700 CLR 20+ MI 3º 35% RH CALM + SE 8 kt Tmxmn 34 -8ºF CLR all day Depth 38 (31-43) inches
2/22/2020 8:00 AM 0.00 0.0 M 36.2 M 0222200800 Cs BKN 20+ mi 27º 45% RH Calm + NW 12 KT TMXMN 44 3ºF CLR ALL DAY Depth 36.2 (30-40) inches
2/23/2020 8:00 AM 0.41 7.4 M 42.6 M 0223200800 Ns S S+ 0.2 mi 24º 90% RH NW 2+ 12 kt Tmxmn 44 3º F CLR AM Cs As SCT v BKN PM 2200 CLR New 7.4 SWE 0.41 Depth 42.6 (37-46) inches SBGN 0300
2/24/2020 8:00 AM 0.49 4.0 M 42.8 M 0224200800 Ns S S+ BS 0.1 mi 20º 85% RH WNW 6 +35 kt Tmxmn 30 10º F Ns S- v S+ all day SW- PM SBGN 0600 SW- BS 0650 S S+ BS+ NEW 4.0 SWE 0.49 Depth 42.8 (36-49) Snow Boards 6-9;3.2-7; 1.5-2.2 inches blowing and drifting snow SNOW SQUALLs
2/25/2020 8:55 AM 0.24 3.2 M 41.8 M 0225200855 Ns S- S— SW SCT 3 mi 5º 85% RH NW 1 + 35 kt tmxmn 22 4ºF New 3.2 SWE 0.24 Depth 41.8 (34-48) BS Drifting, Snow boards: 2-4.5; 1.8-3.5; 2-4 inches
2/26/2020 7:00 AM 0.01 0.1 M 40.2 M 0226200700 CLR Cu Fc 20+ mi -3º 73% RH Calm + NW 12 kt Tmxmn 15 -8ºF Ns SW- - BS- DRIFTING All day Cs SCT PM New 0.1 SWE 0.01 Depth 40.2 (34-46) INCHES
2/27/2020 8:00 AM 0.02 0.2 M 39.0 M 0227200800 Ns BKN SW- - 5 mi 20º 75% RH NE 2 + 18 kt Tmxmn 25 -9º F CLR AM AcL SCT Sc Ns 1300-0700 SCT SW- SW— New 0.2 SWE 0.02 Depth 39.0 (32-45) INCHES
2/28/2020 8:55 AM 0.01 0.1 M 38.0 M 0228200855 CLR 20+ MI 27º 42% RH CALM + W 18 KT TMXMN 32 16ºF Sc Ns SCT SW- all day New 0.1 SWE 0.01 Depth 38.0 (31-44) inches
2/29/2020 8:50 AM 0.00 0.0 M 36.4 M 0229200850 Cu AcL SCT 20+ mi 25º 45% RH Calm + WNW 20 kt TMXMN 39 16º F Cu AcL All day Depth 36.4 (31-40) inches MELTING sublimation…
3/1/2020 7:00 AM 0.01 0.1 M 35.6 M 0301200700 Sc Ns OVC SCT SW- - 15 mi 23º 72% RH N 1+19 kt Tmxmn 39 16ºF AcL SCT Melting, runoff sublimation New 0.1 SWE 0.01 Depth 35.6 (31-40) inches
3/2/2020 7:00 AM 0.17 2.7 M 38.2 M 0302200700 Ns SW— 3 mi 21º 88% RH NW 4 + 14 kt Tmxmn 37 19º F Sc Ns SW- - SCT v BKN Ns S- 2030 New 2.7 SWE 0.17 Depth 38.2 (33-42) inches Snowboards: 2.0-2.9; 2.0-2.5; 2.0-2.5 inches
3/3/2020 8:50 AM 0.05 1.0 M 37.0 M 0303200850 Cu SCT 20+ mi 25º 58% RH NW 3+ 17 kt Tmxmn 30 16ºF Ns SW- - AM Sc SCT CLR PM New 1.0 SWE 0.05 Depth 37 (32-40) melt sublimation
3/4/2020 8:00 AM 0.00 0.0 M 36.2 M 0304200800 CLR AcL SCT 20+ mi 22º 42% RH Calm + N 20 kt Tmxmn 34 8ºF Cu SCT CLR Depth 36.2 (32-39) inches Melt sublimation
3/5/2020 8:00 AM 0.00 0.0 M 35.2 M 0305200800 CLR 20+ 23º 52% RH CALM + W 20 KT Tmxmn 40 7º F CLR AcL SCT all day Depth 35.2 (31-38) inches Melt runoff sublimation
3/6/2020 7:00 AM 0.00 0.0 M 33.6 M 0306200700 As Cs BKN 20+ mi 20º 54% RH Calm + N 18 kt Tmxmn 42 18º F CLR Cs SCT V BKN DEPTH 33.6 (29-37) INCHES Melt and sublimation
3/7/2020 8:30 AM 0.00 0.0 M 31.4 M 0307200830 AcL Ac SCT v BKN 20+ mi 33º 53% RH Cal;m + N 13 kt Tmxmn 49 17ºF Melt and sublimation Depth 31.4 (27-34) inches
3/8/2020 7:00 AM 0.00 0.0 M 29.4 M 0308200600 MST Ac BKN 20+ mi 30º 63% RH W 1 + 15 kt Tmxmn 54 21ºF AcL SCT Cu SCT All day Melting and Sublimation Depth 29.4 (25-34) inches RAPID MELT sublimation XC track avg 47 (34-57) inches 18 points
3/9/2020 8:00 AM 0.05 0.6 M 30.0 M 0309200800 MDT Ns S- S- - 1 mi 26º 86% RH N 1+NW 17 kt Tmxmn 49 26º F Sc BKN v SCT all day SBGN 1900 SW- - SG - - New 0.6 SWE 0.05 Depth 30.0 (26-34) inches SW- SCT 1500-1900
3/10/2020 8:55 AM 0.05 0.5 M 29.2 M 0310200855 Ns S- 1 mi SW- SCT 38º 89% RH WSW 6+ W 26 kt Tmxmn 38 26ºF SW— END 1100 Sc SCT CLR PM New 0.5 SWE 0.05 Depth 29.2 (25-33) inches
3/11/2020 7:00 AM 0.05 0.8 M 29.2 M 0311200700 Ac SCT 20+ mi 25º 76% RH NW 5+21 kt Tmxmn 39 24ºF Ns SW- - AM Sc BKN S- - 1500-1600 New 0.8 SWE 0.05 Depth 29.2 (25-34) inches Snow melted on ground contact snow boards 0-0.5
3/12/2020 8:30 AM 0.01 0.1 M 27.8 M 0312200830 Ns SW- - 5 mi 33º 72% RH NW 5+ 22 kt Tmxmn 43 24ºF Ac SCT v BKN Sc BKN with SW- - SCT New 0.1 SWE 0.01 Depth 27.8 (23-32) inches Melting and Sublimation
3/13/2020 8:50 AM T T M 26.8 M 0313200850 As BKN Ns SCT VIRGA SW- - 15 mi 31º 77% RH SW 1 + W 20 kt Tmxmn 45 30ºF Ns SW- - AM Cs OVC New T SWE T Depth 26.8 (23-31) inches Melting and Sublimation Rotten snow
3/14/2020 8:30 AM 0.09 1.3 M 27.8 M 0314200830 Sc Ns SCT v BKN SW- - - 20 mi 33ª 66% RH NW 5+ E 14 kt Tmxmn 40 22ªF Ns As SW- - S- Sc BKN CLR New 1.3 SWE 0.09 Depth 27.8 (24-32) inches Melting and Sublimation
3/16/2020 8:00 AM T T M 25.0 M 0316200800 CLR 20+ MI 26) 76% CALM + NE 12 KT Tmxmn 46 17ºF Cs SCT v BKN AM Sc BKN PM SW- - ~0100-0200 T New T swe Depth 25 (21-28)
3/17/2020 8:00 AM 0.00 0.0 M 24.0 M 0317200800 As OVC 20+ mi 31º 54% RH Calm + NE 11 KT TMXMN 50 21º F CLR AM Cs As OVC PM Depth 24 (18-27) inches XC 2 km route avg 41 (25-56) inches deep 18 points
3/18/2020 7:00 AM 0.00 0.0 M 23.0 M 0318200700 Ac SCT v BKN 20+ mi 20º 58% RH Calm + NW 13 kt Tmxmn 50 20ºF As Cs OVC AM Cu SCT CLR PM Depth 23.0 (18-27) INCHES RAPID MELT AND SUBLIMATION
3/19/2020 8:00 AM 0.01 0.1 M 22.0 M 0319200800 St SCT As OVC SCT SW- - 10 mi 28º 85%rh SW 4+ 21 Tmxmn 48 21º Ac SCT v BKN Sc BKN SCT SW- - New 0.1 SWE 0.01 Depth 22.0 (17-25) inches Melting and Sublimation
3/20/2020 8:50 AM 0.15 2.2 M 24.8 M 0320200850 Sc Ns SCT v BKN 20 mi 24º74% RH SW 1+ W 19 KT TMXMN 30 24º As Ns OVC S- - v S- all day New 2.2 SWE 0.15 Depth 24.8 (19-29) inches MELTING and compaction melt on contact
3/21/2020 8:00 AM 0.10 1.3 M 25.4 M 0321200800 Cu Ac SCT 20+ mi 22º 64% RH Calm + NW 12 kt Tmxmn 32 13º F Sc Ns SCT v BKN SW- - New 1.3 SWE 0.10 Depth 25.4 (20-28) INCHES
3/22/2020 8:30 AM 0.21 2.9 M 27.2 M 0322200830 Ns S S+ 0.2 mi 23º 91% RH Calm + SE 19 kt Tmxmn 39 16ºF Cu Cs SCT v BKN AM As Cs OVC PM SCT SW -1500-2100 S- 0500 S S+ 0745-0845 New 2.9 SWE 0.21 Depth 27.2 (21-33) inches XC route 032120 1500-1608 avg 41 (25-56 inches Hardpack
3/23/2020 7:00 AM 0.05 1.0 M 25.2 M 0323200700 Ac BKN 20+ mi 14º 77% RH NW 4+20 kt Tmxmn 33 14ºF Ns S- S+ AM SW- - all day CLRG 1300-1800 CLR NEW 1.0 SWE 0.05 Depth 25.2 (19-290 INCHES NEW SNOW MELTED
3/24/2020 8:00 AM 0.28 3.9 M 29.0 M 0324200800 Sc Ac BKN SCT SW- 20+ mi 24º 76% RH NW 8 + 15 kt Tmxmn 41 12ºF Sc Ac BKN v SCT 0700-1500 SW- 1500-1700 S S+ 1745-1930 S- 1930-2200 S— New 3.9 SWE 0.28 Depth 29.0 (24-33) inches Snow boards 4.0-4.3; 3.8-4.0; 3.0-3.9 inches large dendritic aggregates 3-5 mm
3/25/2020 8:00 AM T T M 24.8 M 0325200800 Sc As OVC 20 mi 32º55% NW 2+20 kt Tmxmn 41 24ºF Ns SW- - AM Cu SCT PM New T SWE T Depth 24.8 (22-30) inches Sublimation and Melting
3/26/2020 8:00 AM 0.00 0.0 M 23.0 M 0326200800 Sc Ac Cs SCT v BKN 20+ mi 33º 35% RH W 5+22 kt Tmxmn 42 31ºF Melting and sublimation Depth 23.0 (17-28) inches
3/27/2020 8:00 AM 0.00 0.0 M 22.2 M 0327200800 CLR 20+ mi 23º 71% RH Calm + WSW 27 kt Tmxmn 45 29º High Winds all day Sublimation + Melting Ac Cu SCT Depth 22.2 (17-27) INCHES
3/28/2020 8:00 AM 0.28 2.7 M 24.8 M 0328200800 Ns BKN SW- - 2 mi 15º 85% RH Calm + N 19 kt Tmxmn 33 7ºF AM CLR Cu SCT 1500 SBGN SW- - S S+ 1545-1800 S- 1800-2200 New 2.7 SWE 0.28 inches Depth 24.8 (19-30) inches
3/29/2020 8:00 AM T T M 23.8 M 0329200800 Cu Ac SCT 20+mi 20º 67% RH NW 2 + 15 kt Tmxmn 30 7ºF AM Ns SW- - PM Sc SCT v BKN SW- - T new Tse Depth 23.8 (18-29) inches sublimation
3/30/2020 8:30 AM 0.01 0.1 M 23.4 M 0330200830 Ns SW- - 3 mi 26º 88% RH N 2+14 kt Tmxmn 39 9ºF Cu Ac SCT SCT SW- - Sc OVC New 0.1 SWE 0.01 Depth 23.4 (17-29) inches
3/31/2020 8:30 AM 0.05 0.6 M 23.3 M 0331200830 Sc BKN SW- - - 20 mi 31º 65% RH NW 6+ 15 kt Tmxmn 35 20ºF Sc SCT v BKN SCT SW- - all day SBGN 2200 - 2300 New 0.6 SWE 0.05 Depth 23.3 (17-29) inches
4/1/2020 8:00 AM 0.00 0.0 M 21.6 M 0401200800 Cs BKN 20+ mi 35º 51% RH NW 1+ 23 kt Tmxmn 46 25ºF Sc BKN v SCT AM SCT SW- - Cu SCT PM WINDY Sublimation and Melting Depth 21.6 (15-27) inches
4/2/2020 7:00 AM 0.00 0.0 M 20.2 M 0402200700 Sc Ac BKN 20+ mi 34º 53% WSW 5+25 km Tmxmn 48 32º Cs Cu BKN SCT RAPID SUBLIMATION MELTING Depth 20.2 (14-26)
4/3/2020 8:00 AM 0.14 2.2 M 22.2 M 0403200800 Cu Fc SCT 20+ mi 12º 86% RH Calm + SE 28 kt Tmxmn 43 6ºF Cs BKN Cu SCT CFRNT 1400 SBGN Ns S- S BS New 2.2 SWE 0.14 Depth 22.2 (16-27) inches
4/4/2020 8:00 AM 0.05 0.6 M 20.8 M 0404200800 Fc Sc SCT 20+ mi 26º 67% RH NW 4+ 20 Tmxmn 32 19ºF Cu Fc SCT CLR all day Cs As OVC 1700-0400 SW- 0200-0300 New 0.6 SWE 0.05 Depth 20.8 (14-26) INCHES
4/5/2020 7:00 AM 0.00 0.0 M 19.4 M 0405200700 As BKN 20+ mi 28 69% RH Calm + NW 15 KT Tmxmn 44 19ºF Cu Fc SCT Sc BKN CLR Depth 19.4 (13-25) INCHES Rapid Melt and Sublimation
4/6/2020 7:00 AM 0.00 0.0 M 18.4 M 0406200700 CLR 20+ MI 27º 62% RH Calm + SW 21 Tmxmn 47 27ºF As BKN AM Sc SCT v BKN OVC PM 2100 CLR Depth 18.4 (12-24) inches
4/7/2020 7:00 AM 0.00 0.0 M 16.6 M 0407200700 Fc SCT CLR 20+ mi 36º 31% RH WSW 12+30 kt Tmxmn 50 26ºF Depth 16.6 (10-23) inches 98% cover HIGH WINDS SUBLIMATION MELTING ALL DAY AND NIGHT
4/8/2020 7:00 AM 0.00 0.0 M 14.8 M 0408200700 CLR 20+MI 29º 39% RH Calm + SW 27 kt Tmxmn 50 36ºF Fc SCT CLR WINDY Depth 14.8 (7-22) inches 95% COVER RAPID MELT SUBLIMATION AND RUNOFF
4/9/2020 7:00 AM 0.00 0.0 M 12.2 M 0409200700 CLR N CS OVC S 20+ MI 26º 58% RH CALM + W 15 kt Tmxmn 52 29ºF CLR Few Cu All day Depth 12.2 (0-21) inches 90% Cover Rapid Melting and Sublimation 4 of 5 snow poles in snow
4/10/2020 7:00 AM 0.07 0.7 M 11.6 M 0410200700 -X F SUN DIM VIS 0.2 MI 29º 92% RH CALM + S 15 KT TMXMN 58 26ºF CLR Fc SCT Sc Ns RW- SW- SCT 2100 - 2300 NEW 0.7 SWE 0.07 DEPTH 11.6 (2-19) INCHES
4/11/2020 8:30 AM 0.00 0.0 M 9.2 M 0411200830 Ac Cs SCT 20+ mi 35º 34% RH WNW 3+ NW 11 kt Tmxmn 53 27ºF St Patches F 0500-1000 then Sc Cu SCT WSW 16 tk Depth 9.2 (0-17) inches 80% cover 1 0f 5 poles 0.0 inches
4/12/2020 8:50 AM 0.40 5.1 M 13.8 M 0412200850 Ns X S- S 0.5 mi 24º 92% RH N 2+NW 24 Kt Tmxmn 48 21ºF CFRNT 1800 SBGN 2100 S- v S+ New 5.1 SWE 0.40 Depth 13.8 (7-20) inches Snow Boards 4.5-5.3 inches
4/13/2020 7:00 AM 0.59 5.8 M 18.0 M 0413200700 Sc BKN 10 mi 10º 86% RH Calm + W 16 kt Tmxmn 31 10ºF Ns S- v S All Day 2” new 2000-0400 S-vS+ New 4 in Totals New 5.8 SWE 0.59 Depth 18.0 (9-26) INCHES SNOW BOARDS 5.4-6.3; 4.5-6.1; 5.5-6.4 INCHES BANDS OF HEAVY SNOW ALL DAY S-V S+ 2100-0300 MELTING AS SNOW FELL DURING DAY
4/14/2020 7:00 AM 0.20 2.5 M 18.0 M 0414200700 CLR N-E-S OROG CLD SW-W -1º 75% RH CALM + W 18 kt Tmxmn 24 -1ºF Ns SW- S- all day Bands New 2.5 SWE 0.20 Depth 18.0 (9-26) inches SW- Bands all day COLD
4/15/2020 7:00 AM 0.02 0.2 M 16.2 M 0415200700 As Cs BKN v OVC Ns SCT SW- - 5 mi 16º 71% RH N 2+NW 22 kt Tmxmn 27 -2ºF AM CLDS on Ridge Tops then SCT to CLR SW- - 0300-0500 New 0.2 SWE 0.02 Depth 16.2 (7-23) inches
4/16/2020 8:00 AM 0.23 3.9 M 18.8 M 0416200800 Ns BKN As Cs OVC 5 mi SW- BS 28º 82% RH WNW 4+ 21 kt Tmxmn 34 16ºF Ns Sc SW-SCT All Day SBGN 0000 -S- S NEW 3.9 SWE 0.23 DEPTH 18.8 BS Drifting snow boards: 3.2-4.6; 3.0-6.5; 3.5-4.2 inches Runoff continues
4/17/2020 7:00 AM 0.37 7.1 M 22.6 M 0417200700 Ns SW- - SCT 10 mi 18º 78% RH NNW 4+ 25 kt Tmxmn 31 14ºF Ns S-S all day Max 2100-2300 New 7.1 SWE 0.37 Depth 22.6 (14-28) Drifting BS Boards: 5.8-7.5; 4.5-10.5; 6.1-6.6 inches
4/18/2020 8:50 AM T T M 17.0 M 0418200850 Sc BKN As OVC 20 mi 34º 65% RH NW 1 + N 18 kt Tmxmn 42 14ºF AM Ns SW- SCT Cu Ac SCT PM T New Depth 17.0 (7-22) inches Rapid Melting, Runoff, Sublimation
4/19/2020 8:30 AM 0.05 0.3 M 15.7 M 0419200830 Sc Cu SCT 20+ mi 29º 78% RH NNW 1 + 15 kt Tmxmn 45 19º Sc Cu SCT SW- - S-2100-2200 New 0.3 SWE 0.05 Depth 15.7 (5.5-22) Runoff Melt sublimation, flakes melt on contact during day
4/20/2020 7:30 AM 0.13 0.9 M 14.3 M 0420200730 Ns OVCSW- - 8 mi 28º 92% RH NNE 1+16 kt Tmxmn 45 20º F Sc Ns Ac BKN v OVC all day with SCT SW- SBGN 1900 - 0300 S- - S- New 0.9 SWE 0.13 Depth 14.3 (5-21) inches 99% Cover
4/21/2020 7:00 AM 0.03 0.1 M 11.4 M 0421200700 CLR 20+ MI 25º80% RH CALM +NE 13 KT Tmxmn 48 25º Ns SW- - Sc RW- - SW- - PM Sc SCT Cu CLR New 0..1 SWE 0.03 Depth 11.4 (1-19) Soft snow 90% cover Rapid melt and runoff
4/22/2020 8:00 AM 0.00 0.0 M 10.0 M 0422200800 Sc SCT v BKN 20+ mi 37º 57% Calm + N 12 kt Tmxmn 54 23ºF Sc Cu Cu+ All day Melting, runoff, sublimation Depth 10.0 (0-19) inches 85% Cover
4/23/2020 7:00 AM T T M 8.2 M 423200830 Sc BKN v OVC 20+ mi 35) 59% RH SW NNW 1 + 19 kt Tmxmn 48 27 Sc SCT v BKN SCT SW- - all day New T SWE T Depth 8.2 (0-16) Drifts 24 inches 80% cover S Facing slopes 50% cover Runoff Rapid edge melt
4/24/2020 8:00 AM 0.56 5.8 M 13.2 M 0424200800 Ns OVC S- - F 1 mi 26º 92% RH Calm + NE 24 kt Tmxmn 42 26ª Sc Cu Cu+ SCT v BKN all day SCT SW- - Ns S- 1800-0800 S v S+ 2300-0400 New 5.8 SWE 0.56 Depth 13.2 (7-19) Snowboards 5.3-6.5; 4.9-5.8; 5.0-5.8 inches Large dendritic aggregates 3-8 mm moist snow
4/25/2020 8:50 AM 0.06 1.3 M 10.4 M 0425200850 Ns OVC S- v S- - 2 mi 31º 79% Calm + NW 13 kt Tmxmn 41 25ºF Ns OVC BKN SW- - All day Cu PM CLR SBGN 0100 S- S - - New 1.3 SWE 0.06 Depth 10.4 (3-18) inches
4/26/2020 8:30 AM T T M 7.2 M 0426200830 Cs BKN v OVC 20 mi 44º 39% RH NW 3+ W 13 kt Tmxmn 48 26ºF Ns SCT SW- - AM Cu SCT PM Rapid Melt and runoff New T SWE T Depth 7.2 (0-15) 2 of 5 snow poles at 0.0 70% Cover
4/27/2020 7:00 AM 0.21 1.0 M 7.0 M 0427200700 CLR 20+ MI 28º 92% RH CALM + N 18 KT TMXMN 53 28ºF Cs OVC AM Ac BKN 1600-1730 Ns RW- SW- S S+ S— Slush NEW 1.0 SWE 0.21 Depth 7.0 (1-13) INCHES
4/28/2020 8:30 AM 0.01 0.0 M 4.6 M 0428200830 Sc SCT v BKN 20+ mi 43º 48% RH NW 2 + N 25 kt Tmxmn 60 25º F CLR Cs Cu SCT all day Rapid Melt and Runoff RW- 0100-0200 QPE: 0.01 Depth 4.6 (0-11) inches 3 snow poles 60% cover; S facing slope 40% cover
4/29/2020 7:00 AM 0.00 0.0 M 4.0 M 0429200700 CLR 20+ MI 35º 51% RH CALM + N 17 KT Tmxmn 57 31ºF Cs Cu SCT all day WARM Rapid Runoff Depth 4.0 (0-10) 2 poles dry; 50% cover SFace 20% NFace 95% cover
4/30/2020 7:00 AM 0.00 0.0 M 2.2 M 0430200700 Aa Cs BKN 20+ mi 40º 50% RH Nw 1+ W 22 kt Tmxmn 65 31ºF CLR Cu SCT ALL DAY Rapid Melt and runoff Depth 2.2 (0-6) inches Drifts 10-20 inches 40% Cover Sfacing 10% Nfacing 95% cover
5/1/2020 7:00 AM 0.01 0.0 M 0.2 M ??0501200700 AcL E 20+ 37º 69% RH SE 1+ W 21 kr Tmxmn 63 33ºF Rapid Melt and Sublimation Ac Cs BKN AM Cu Cu+ SCT RW- 1500-1800 QPE 0.01 Depth 0.2 (0-1) inches at snow poles 20% Cover Sfacing Slope 10% cover Nfacing meadow 90% cover
5/2/2020 7:00 AM 0.00 0.0 M 0.0 M 0502200850 Ac Sc SCT v BKN 20+ mi 45º 57% RH Calm + S 18 kt Tmxmn 67 33º F AcL SCT AM CLR PM Rapid melt and runoff Snow cover 15% Drifts to 18 inches no snow poles in snow
5/3/2020 7:00 AM 0.05 0.0 M 0.0 M 0503200700 Ac Cs SCT 20+ mi 31º 92% RH Calm + S 28 kt Tmxmn 64 31ºF Sc Ac SCT v BKN AM Cu Cu+ SCT RW- PM 1900-2005 QPE 0.05 inches FROST+ Snow Cover 10-15% Nfacing 80-90 % Raoid melt & runoff
5/4/2020 7:00 AM 0.12 0.2 M 0.2 M 0504200700 Sc St F SW- - 3 mi 35º 89% RH NW 2 + SE 23 kt Tmxmn 59 30ºF Ac Cs SCT AM Cu SCT PM CLR S- 0300-0430 SW- - 0430-0700 New 0.2 SWE 0.12 Depth 0-0.2 inches Slush
5/5/2020 7:00 AM 0.03 0.1 M 0.0 M 0505200700 CLR 20+ MI 27º 64% RH CALM + W 24 KT Tmxmn 46 22ºf light FROST Ns SW- AM Cu SCT PM New 0.1 SWE 0.03 Depth 0 10% cover Snow melted on impact
5/6/2020 7:30 AM 0.00 0.0 M 0.0 M 0506200730 Cs BKN 20+ mi 36º 46% RH CALM + N 15 KT Tmxmn 54 29ºF CLR Ac Cs SCT AM Cu SCT PM CLR N facing 90% Cover South Facing 5%; Ten Mile range 90% Cover
5/7/2020 7:00 AM 0.00 0.0 M 0.0 M 0507200700 Ac As Fc SCT v BKN 15 mi H F 36º 50% RH Calm + NW 15 kt Tmxmn 57 29ºF Runoff Melting Nfacing 50% cover AM Cs BKN 1400-1900 As OVC F16 Flyby 1710
5/8/2020 7:00 AM 0.00 0.0 M 0.0 M 0508200730 CLR 20 MI 31º 48% RH CALM + NW 33 KT Tmxmn 51 33 Ac BKN v SCT AM Ac SCT PM Jet max High winds Rapid evaporation, sublimation and melting RH 25-22-20% 1200-1800
5/9/2020 7:30 AM 0.00 0.0 M 0.0 M 0509200730 Fc SCT 20+ 31º 70% RH N 1+ W 21 kt Tmxmn 53 20º F CLR Ac Cs SCT CLR all day rapid runoff
5/10/2020 7:00 AM 0.00 0.0 M 0.0 M 0510200830 Cs BKN 20+ mi 43º 47% RH calm + E 19 kt Tmxmn 54 27º F CLR Fc Cu SCT all day Rapid melt and runoff
5/11/2020 7:00 AM 0.00 0.0 M 0.0 M 0511200700 Ac Cs BKN 20+ 39º 66% RH NW 2+ W 18 kt Tmxmn 57 27ºF Cs BKN Sc OVC CLR PM
5/12/2020 8:50 AM 0.47 0.1 M 0.0 M 0512200850 Sx BKN 20+ mi 50º 50% RH WSW 5+ SE 17 kt Tmxmn 43 33ºF R- v R v R S mix all day Slush 0.1 SWE 0.47 inches
5/13/2020 7:00 AM 0.00 0.0 M 0.0 M 0513200700 Ac Cs Cu 20+ mi 43º 37% RH NW 2+ 18 kt Tmxmn 57 34ºF Sc Ac SCT v BKN Cs OVC all day Runoff + EVAP and Melting
5/14/2020 7:00 AM 0.00 0.0 M 0.0 M 0514200800 Ac OVC 20+ mi 39º 75% RH Calm + S 21 kt Tmxmn 57 39ºF Ac Cs SCT all day
5/15/2020 7:00 AM 0.00 0.0 M 0.0 M 0515200700 St OVC 20+ mi 35º 88% Calm + SE 18 kt Tmxmn 56 32ºF Ac OVC AM Sc SCT v BKN PM CLR Rapid Melting and runoff N facing 10-20% Cover Peaks 90% Cover
5/16/2020 7:15 AM 0.03 0.0 M 0.0 M 0516200700 Ns RW- - St F Sc OVC 10 mi 35º 91% RH Caalm + NW 15 kt Tmxmn 57 31ºF St OVC SCT RW- - RBGN 1830-1930 QPE 0.03 RW - - 0700-0715
5/17/2020 7:00 AM 0.00 0.0 M 0.0 M 0517200700 CS BKN 20+ MI 37º 78% RH CALM + SW 17 kt Tmxmn 57 34ºF St F Ns RW- - 0700-0740 Sc BKN v SCT Cu SCT .QPE 0.03 (reported 051620)
5/18/2020 7:00 AM 0.00 0.0 M 0.0 M 0518200700 Cs BKN 20+ mi 42º 60% RH calm + 14 kt Tmxmn 66 41ºF Cs Ac SCT v BKN CLR
5/19/2020 7:00 AM 0.00 0.0 M 0.0 M 0519200700 Cs SCT v BKN 20+ mi 42º 56% Calm + SE 21 kt Tmxmn 75 41ºF Cs Ac SCT v BKN Rapid Melt evaporation and runoff
5/20/2020 7:45 AM 0.00 0.0 M 0.0 M 0520200745 Ac Cs BKN v SCT 20+ mi 49º 55% SE 3 + E 28 kt Tmxmn 71 41ºF Leafing-out aspen buds SCT RW to South 1800-2100
5/21/2020 7:00 AM 0.00 0.0 M 0.0 M 0521200745 CLR 20+ MI 39º 36% RH NW 2+29 KT TMXMN 64 38ºF Cu CLR VERY DRY large EVAP Melting and runoff peaks browning up; aspen budding out Young Moose feeding
5/22/2020 7:45 AM 0.00 0.0 M 0.0 M 0522200745 CLR 20+ MI 37º 40% RH CALM + SE + 17 KT Tmxmn 58 26ºF CLR Cu SCT Rapid melt and runoff
5/23/2020 8:50 AM 0.00 0.0 M 0.0 M 0523200850 Cu Cs SCT 20+ mi 49º 28% rh calm + WSW 21 Tmxmn 65 29ºF Cu Cs SCT all day windy EVAP Runoff
5/24/2020 7:00 AM 0.00 0.0 M 0.0 M 0524200700 As OVC Ns SCT S- on Ridges 15 mi 35º 85% RH Calm + N 14 kt Tmxmn 59 33º F Cs SCT v BKN AM Sc OVC PM vBKN
5/25/2020 8:00 AM 0.50 2.7 M 2.7 M 0525200800 Sc BKN 10 mi 31º 92% RH Calm + SW 11 kt Tmxmn 38 29º F Ns S-v S vS+ All day Dentritic aggregates 5-10 mm dia New 2.7 SWE 0.50 inches Depth 0-3 inches Rapid melt as it fell asphalt clear Aspen leaves snow coated
5/26/2020 7:00 AM 0.00 0.0 M 0.0 M 0526200700 CLR 20+ MI 29º 80% RH CALM + E 14 KT Tmxmn 53 28ºF FROST Sc BKN v OVC SCT CLR Rapid melt and runoff
5/27/2020 8:00 AM 0.00 0.0 M 0.0 M 0527200800 Cu SCT 20+ mi 46º 72% rh Calm + N 15 kt Tmxmn 59 28ºf CLR Sc Set v BKN AM BKN v OVC PM Melt and runoff
5/28/2020 6:30 AM 0.05 0.0 M 0.0 M 0528200700 Sc SCT 20+ mi 38º 92% RH Calm + NNW 16 kt Tmxmn 63 38ºF Cu SCT V BKN Cu+ RW- PM 1640-1730 QPE 0.05 inches Max 1700 15 min
5/29/2020 7:00 AM 0.00 0.0 M 0.0 M 0529200700 Ac SCTCLR 20+ mi 43º 81% RH Calm + E 13 kt Txmn 70 30ºF Cu SCTv BKN CLR
5/30/2020 8:30 AM 0.02 0.0 M 0.0 M 0530200830 Ac Cs SCT 20+ mi 52 63% Ca;m + NW 15 kt Tmxmn 73 39ºF CLR Cu Cu+ SCT v BKN Ns RW- 1930-2020 QPE 0.02 inches
5/31/2020 8:30 AM 0.02 0.0 M 0.0 M 0531200830 Ac SCT Cs BKN 20+ mi SSW 3+21 kt Tmxmn 75 40ºF Ac Cs SCT Cu Cu+ RW- - CLR QPE 0.02 inches
6/1/2020 8:30 AM 0.01 0.0 M 0.0 M 0601200830 Cs SCT v BKN Cu Cu+ SCTvBKN 20+ mi 56º 48% RH SE 1+ WSW 21 kt Tmxmn 69 42ºF Ac Cs SCTvBKN RW- - 1400-1410 1700-1705 QPE 0.01
6/2/2020 7:30 AM 0.00 0.0 M 0.0 M 0602200730 CS BKN AS SCT 20+MI 47º 68% RH CALM + S 13 KT TMXMN 74 40ºF Cs Cu Cu+ SCT v BKN
6/3/2020 8:30 AM 0.00 0.0 M 0.0 M 0603200830 Cs SCT CLR 20+ 56º 43% RH Calm + SW 16 kt Tmxmn 74 42ºF As Cs SCT v BKN AM Sc BKN PM
6/4/2020 7:30 AM 0.00 0.0 M 0.0 M 0604200730 CLR 20+ MI 47º 48% RH Calm + NW 20 k Tmxmn 71 42ºF Cs Ac SCT Cu Cu+ PM SCT VIRGA
6/5/2020 7:00 AM 0.13 0.0 M 0.0 M 0605200700 CLR 20= MI 42º 71% S 6 + 24 KT Tmxmn 66 39º CLR Cu Cu+ SCT v BKN Cb TRW- R AP- QPE 0.13 aches 2-5 mm hail
6/6/2020 8:00 AM 0.05 0.0 M 0.0 M 0606200800 Ns R- v R 8 mi 50º 82% RH SE 3+14 kt Tmxmn 77 40ºF Cu SCT Cu+ SCT As OVC 1600-2200 RW R BGN 0730
6/7/2020 7:45 AM 0.11 0.0 M 0.0 M 0607200740 CLR 20+ MI 47º42% RH SE 2+31 KT TMXMN 61 46ºF Ns R- R RW bands all day 0730-1640 max 0745-0810 Cu SCT 1600-2100 CLR QPE 0.11 inches
6/8/2020 7:00 AM 0.00 0.0 M 0.0 M 0608200700 CLR 20+ MI CALM + S 27 kt Tmxmn 67 33ºF Frost on Roofs 0600 CLR Cu SCT AM Sc SCT v BKN PM CLR
6/9/2020 8:30 AM 0.27 3.5 M 2.5 M 0609200830 Ns S- F 29º 92% RH Calm + NNE 21 kt Tmxmn 66 28º CLR Cu SCT AM Sc BKN -OVC S- - BGN 1930 S-2100 New 3.5 SWE 0.27 inches depth 0-4 inches
6/10/2020 7:00 AM T T M 0.0 M 0610200700 Sc BKN v OVC 20+ mi 35º 82% RH N 2+16 kt Tmxmn 46 28ºF Ns S- SW-AM Sc SCT PM T NEW 0.0 Depth
6/11/2020 6:30 AM 0.00 0.0 M 0.0 M 0611200630 CLR FROST 20+ MI 32º 82% Calm + S 13 kt Tmxmn 61 32ºF Sc OVC v BKN AM Sc Cu SCT PM
6/12/2020 7:00 AM 0.00 0.0 M 0.0 M 0612200700 CLR 20+ MI 45º 56% S 2 + 14 KT Tmxmn 66 32º F CLR Cu SCT CLR
6/13/2020 7:00 AM 0.00 0.0 M 0.0 M 0613200700 Ac BKN 15 mi KH 48º 56% RH SE 1+E 18 kt Tmxmn 77 40ºF CLR Cu SCT CLR
6/14/2020 7:00 AM 0.04 0.0 M 0.0 M 0614200645 Cu Sc SCT 15 mi H 45º 71% rh SE 1 + N 26 kt Gusty winds 1030-1800 VIRGA Microbursts RW- 1430-2145 QPE 0.04 inches
6/15/2020 7:00 AM 0.00 0.0 M 0.0 M 0615200700 Cs BKN 20 mi H 42º 37% RH Calm + SE 28 kt Tmxmn 73 42ºF Cu SCT all day CLR PM
6/16/2020 7:00 AM 0.00 0.0 M 0.0 M 0616200700 CS BKN 20+ MI 46 48% RH CALM + SE 15 KT TMXMN 73 36ºF Cs BKN v OVC AM Cu SCT PM
6/17/2020 8:15 AM 0.00 0.0 M 0.0 M 0617200815 CLR 15 MI KH 58º 25% RH SSW 3+ 24 KT Tmxmn 75 44ºF Cs BKN AM Cu SCT KH PM
6/18/2020 6:45 AM 0.00 0.0 M 0.0 M 0618200645 Ac BKN 20+ mi 36º 3% RH SSE 3+ 26 kt Tmxmn 74 34ºF CLR Few Cu AM KH 15 mi PM Fires SW US
6/19/2020 7:00 AM 0.39 T M T M 0619200700 Ns OVC REND 0630 38º 94% RH CALM + E 15 KT Tmxmn 63 34ºF RW- v RW 1550 -2030 RW+ 0310-0510 2 pulses QPE 0.39 brief AP- - 1700 and 2000 slush
6/20/2020 7:00 AM 0.10 0.0 M 0.0 M 0620200700CLR 20+ mi 32ºF 73% rh Calm + S 10 kt Tmxmn 56 31ºF FROST Ns RW- v RW All day 0900-1610 max 1330 - 1400 QPE 0.10 inches
6/21/2020 8:30 AM 0.00 0.0 M 0.0 M 0621200830 AcL Cs SCT v BKN 20+ mi 50º 48% RH NW 3 + 16 Tmxmn 63 31º Cs SCT 1700 As BKN
6/22/2020 7:00 AM 0.02 0.0 M 0.0 M 0622200700 Ac SCT 20+ mi 44º 73% RH Calm + SW 17 kt Tmxmn 69 42ºF Ac Cs SCT AM Cu SCT Cu+ SCT RW- - PM !530-1600 QPE 0.02 inches
6/23/2020 7:00 AM 0.15 0.0 M 0.0 M 0623200630 Ac SCT CLR 20+ mi 42º 84% RH CALM + W 13 KT TMXMN 67 40ºF Ac Cu SCT AM Cu Cu+ SCT RW- PM 3 waves 1410-1820 QPE 0.15 inches
6/24/2020 7:00 AM 0.02 0.0 M 0.0 M 0624200700 CLR 20+ MI 45 73% RH CALM + NE 16 kt Tmxmn 72 42ºF Ac Cu SCT AM Sc Cu Cu+ PM SCT RW- - QPE 0.02 2300-2330
6/25/2020 7:00 AM 0.00 0.0 M 0.0 M 0625200700 Ac As SCT 20+ mi 47 63% Calm + E 16 kt Tmxmn 76 41º CLR Cu SCT AM Cu+ SCT VIRGA PM
6/26/2020 6:45 AM 0.18 0.0 M 0.0 M 0626200645 Ac Cs SCT 20+ mi 42º 78% RH Calm + SW 26 kt Tmxmn 72 42ºF Ac Cs BKN AM Cu Cu+ SCT v BKN Ns RW Squall 1430-1440; 1710-1810 max 1745 QPE 0.18 inches
6/27/2020 7:00 AM 0.02 0.0 M 0.0 M 0627200700 Cs SCT 20+ mi 41º 85% RH Calm + 17 kt Tmxmn 76 38ºF Cs CLR AM Cu Cu+ SCR RW- TRW- - PM RW- - 2110-2200 QPE 0.02 inches
6/28/2020 7:00 AM 0.00 0.0 M 0.0 M 0628200700 Ac Cs BKN 20+ mi 44º 56% W 2+17 Tmxmn 73 36ºF Cs Cu SCT All Day FEW Cu+ PM
6/29/2020 7:30 AM 0.02 0.0 M 0.0 M 0629200730 As OVC 15 mi KH 48º 55% Calm + SE 19 kt Tmxmn 72 41ºF Ac Cs BKN AM Cu Cu+ SCT v BKN SCT RW- - QPE 0.02 RW- - 1700—1705 1900-1915
6/30/2020 7:00 AM T 0.0 M 0.0 M 0630200700 Ns R- - 10 mi 38º 90% RH Calm + SSE 12 kt Tmxmn 78 44ºF Cs As SCT v BKN RBGN 0650 T QPE
7/1/2020 6:00 AM T T M 0.0 M 0701200600 CLR FROST 20+ MI 33º 64% CALM + N 16 kt Tmxmn 59 33 0500-0900 Ns RW— SW—- Sc Cu SCT PM CLR T QPE
7/2/2020 7:00 AM 0.00 0.0 M 0.0 M 0702200700 CLR KH 15 MI 44º 50% RH S 2 + 19 KT Tmxmn 74 33ºf CLR Few Cu 0700-1500 Cu SCT v BKN 1500-1800 Sc BKN v OVC 1800-2200 SCT VIRGA
7/3/2020 7:00 AM 0.00 0.0 M 0.0 M 0703200700 CLR H 15 mi 46º 63% RH Calm 18kt Tmxmn 72 42ºF CLR Cu Cu+ SCT v BKN
7/4/2020 7:00 AM 0.02 0.0 M 0.0 M 0704200800 As SCT 20+ mi 52º 72% RH SW 3+ 14 kk Tmxmn 73 45º F CLR Cu SCT AM Cu Cu+ PM SCT 1500-1530 RW- QPE 0.02 inch
7/5/2020 7:00 AM 0.38 0.0 M 0.0 M 0705200700 CLR 20+ MI 42º 95% RH Clm + S 19 kt Tmxmn 72 39º F As Cu SCT AM Cu+ SCT Cb PM RW BGN 1347 RW R 1440-1615 max 1510-1525 end 1700 QPE 0.38 inches
7/6/2020 7:00 AM 0.00 0.0 M 0.0 M 0706200700 Cu SCT 20+ mi 44 73% RH Calm + SE 18 kt Tmxmn 75 39ºF CLR Cu Cu+ CLR all day
7/7/2020 7:00 AM 0.00 0.0 M 0.0 M 0707200645 Cu Ac SCT 20+ mi 52º 58% RH CALM + SE 21 kt Tmxmn 79 51º F Cu SCT 0700-1400 Sc BKN PM CLR
7/8/2020 7:00 AM 0.00 0.0 M 0.0 M 0708200700 CLR H 15 MI 46º 34% Calm + W 23 kt Tmxmn 79 51ºF CLR Few Cu Ac AM Cu Cu+ PM Windy very dry 10% RH
7/9/2020 7:00 AM 0.00 0.0 M 0.0 M 0709200800 Sc BKN thin layer 20+ mi 50º 35% RH Calm + NW 16 kt Tmxmn 74 39º CLR Few cu 0700-1300 Cu SCT 1300-1800 WINDY Very Dry 15-20% RH DEN 97º
7/10/2020 7:30 AM 0.00 0.0 M 0.0 M 0710200730 CLR 20+ MI 46 35% RH CALM + W 15 kt Tmxmn 77 44ºF As Thin lyr SCT v BKN CLR Cu SCT VERY DRY 10-20% RH WINDY
7/11/2020 7:00 AM 0.00 0.0 M 0.0 M 0711200700 CLR 20+ MI 47º 36% RH CALM + W 20 kt Tmxmn 78 40ºF CLR FEW Cu CLR Very DRY and windy RH 10-15%
7/12/2020 7:00 AM 0.00 0.0 M 0.0 M 0712200700 Ac BKN to S SCT 20+ mi 48 58% RH Calm + WSW 15 KT TMXMN 82 41ºF CLR Cu Ac Cs SCT Windy and Dry 10-15% RH
7/13/2020 7:00 AM 0.17 0.0 M 0.0 M 0713200700 AcL SCT Sc BKN 20+ mi 51º ^%% RH Calm + WSW 24 kt Tmxmn 76 46ºF Ac SCT v BKN AM As Sc BKN v OVC 1200-1800 Cu+ RW Squall 1945-2030 QPE 0.17 High winds
7/15/2020 7:00 AM 0.21 0.0 M 0.0 M 0715200700 CLR 20 mi 47º 91% RH Calam + NE 16 KT Tmxmn 76 47º F As Cu SCT AM Sc Cu+ TRW- PM QPE 0.21 inches 3 waves of precip 1850; 2030; 0010
7/16/2020 7:00 AM 0.01 0.0 M 0.0 M 0716200700 As Cs BKN south thick 20 mi H 49º 66% RH Calm + SW 21 kt Tmxmn 73 40ºF CLR Cu SCT AM Cu+ SCT v BKN RW- - PM QPE 0.01 inches
7/17/2020 8:00 AM T 0.0 M 0.0 M 0717200800 As SCT 20 mi 49 77% RH Calm + E 18 kt Tmxmn 77 44ºF Ac Cs BKN AM Cu Cu+ SCT RW- - PM T QPE
7/18/2020 8:50 AM T 0.0 M 0.0 M 0718200850 Ac Cu SCT 20+ mi 58º 60% RH Calm + NW 15 Kt Tmxmn 76 40º F Cu Cu+ SCT Cb RW TRW S to E RW- - 1830-1910 T
7/19/2020 7:00 AM 0.00 0.0 M 0.0 M 0719200855 Ac SCT v BKN 20+ mi 62º 42% RH Calm + Ne 18 kt Tmxmn 78 42ºF Ac Cu SCT AM Cu Cu+ BKN PM CLR SCT RW TRW S-E-N
7/20/2020 8:00 AM T 0.0 M 0.0 M 0720200800 Ac SCT 20+ mi 49º 67% rh Calm + N 15 kt Tmxmn 72 47ºF Ac Cu cu+ BKN SCT RW- - 1600-1800 T
7/21/2020 6:30 AM 0.00 0.0 M 0.0 M 0721200630 CLR Fc 15 mi KH 48º 62% RH Calm + N 18 kt Tmxmn 77 44ºF Ac Cu SCT all day
7/22/2020 8:00 AM 0.00 0.0 M 0.0 M 0722200800 Cs BKN 15 MI KH 51º 60% RH CALM + SE 16 KT Tmxmn 78 47º CLR Fc AM KH Cu SCT v BKN PM CLR
7/23/2020 5:30 AM 0.01 0.0 M 0.0 M 0723200530 Ac SCT 15 mi KH 44º 94% RH Calm + SW 13 kt Tmxmn 77 45ºF Cs BKN V OVC AM Cu cu+ Cb SCT PM RW- - QPE 0.01 RW- RW all around
7/24/2020 7:00 AM 0.21 0.0 M 0.0 M 0724200700 Sc As OVC 15 mi SCT RW- - 50º 84% RH Calm + W 14 kt Tmxmn 76 43ºF Ac Cu Cu+ Cb TRW- RW- 2 bands QPE RW- 1400-1445 1850-1930 QPE 0.21 inches TRW RW+ E Loveland pass 1530-1600
7/25/2020 7:00 AM 0.10 0.0 M 0.0 M 0725200700 St F -X As BKN 10 MI 48º 97% RH Calm + S 15 kt Tmxmn 49 48ºF Ns SCT RW- - As OVC all day RW- 2050-2130; 0030-0140 QPE 0.10 inches
7/26/2020 8:50 AM 0.55 0.0 M 0.0 M 0726290850 GF St SCT Cu+ SCT 10 mi 51º 91% RH Calm + NE 10 KT TMXMN 63 48º RBGN 1110 RW RW+ 1140-1210 1440-1510 1815-2040 2230-35 QPE 0.55 INCHES MAX 1150-1210
7/27/2020 7:00 AM 0.09 0.0 M 0.0 M 0727200700 Ac Cs BKN v SCT 15 mi 45º 86% RH Calm + N 10 kt Tmxmn 68 45ºF F GF Sc BKN Cu Cu+ SCT RW- 1405-1455 QPE 0.09 inches
7/28/2020 8:00 AM 0.00 0.0 M 0.0 M 0728200800 As OVC 15 mi 51º 82% RH Calm + E 14 kt Tmxmn 78 44F Ac Cs BKN AM Cu Cu+ PM SCT CLR Ac BKN 2200
7/29/2020 7:00 AM 0.17 0.0 M 0.0 M 0729200645 CLR 15 MI 41º 92% RH CALM + N 10 KT TMXMN 69 41º F As OVC AM Cu+ SCT RW - V TRW- 1130-1200; 1500-1515; 2100, 2330 QPE 0.17 inches
7/30/2020 7:00 AM 0.06 0.0 M 0.0 M 0730200700 Ac SCT20+ mi 43º 89% RH Calm + SW 17 kt Tmxmn 70 40º F CLR Cu Cu+ SCT RW- v RW 1410-1600 QPE 0.06 inches Breckenridge TRW- 3 bands 1400-1445
8/1/2020 7:00 AM T 0.0 M 0.0 M 0801200700 CLR 15 mi 45º 69% RH Calm + W 19 kt Tmxmn 76 40º CLR cu Cu+ SCT RW- - QPE T
8/3/2020 8:00 AM T 0.0 M 0.0 M 0803200800 Ac Cu SCT 15 mi KH 53º 60% RH Calm + NW 20 kt Tmxmn 76 42º F Ac Cu SCT v BKN Cu+ SCT RW- - QPE T
8/4/2020 8:55 AM 0.00 0.0 M 0.0 M 0804200855 Ac Cs SCT v BKN 10 mi KH 60º 35% WSW 2 + 24 kt Tmxmn 75 44º Ac Cs SCT AM Cu PM
8/5/2020 7:00 AM 0.00 0.0 M 0.0 M 0805200700 Cs BKN -X KH 10 mi 52º 67% RH Calm + 18 kt Tmxmn 78 48º F Ac SCT KH -X As Ac BKN
8/6/2020 7:00 AM 0.00 0.0 M 0.0 M 0806200700 Ac SCT vBKN 15 mi 52º 60% RH Calm + SW 14 kt Tmxmn 79 47º F Cs BKN -X KH 5 mi
8/7/2020 8:00 AM 0.00 0.0 M 0.0 M 0807200800 CLR 20+ MI 49º 45% RH Calm + W 27 kt Tmxmn 75 52ºF Ac BKN KH AM Cu SCT CLR PM
8/8/2020 7:00 AM 0.00 0.0 M 0.0 M 0808200700 CLR Ac SCT 20 mi 44º 44% RH Calm + 13 kt Tmxmn 75 42ºF CLR FEW Cu all day very dry
8/9/2020 7:00 AM 0.00 0.0 M 0.0 M 0809200700 CLR X K 5MI 47º 40% RH CALM + W 15 km Tmxmn 76 42º F CLR Ac SCT Cu SCT Sc BKN CLR Very dry 17% RH Windy
8/10/2020 7:00 AM 0.00 0.0 M 0.0 M 0810200700 Ac SCT v BKN K 8 mi 47º 37% RH Calm + W 14 kt Tmxmn 76 41º VERY DRY 9% RH PM Sc Ac SCT v BKN K
8/11/2020 7:00 AM 0.00 0.0 M 0.0 M 0811200700 Ac SCT v BKN K 15 mi 51º 39% RH SSW 2+ W 13 kt Tmxmn 76 46º Ac Cu SCT K H -X Very Dry
8/12/2020 7:00 AM 0.00 0.0 M 0.0 M 0812200700 Ac SCT 20mi 47º 43% RH Calm + W 21 kt Tmxmn 76 48º F Ac Sc SCT v BKN KH HOT AND DUSTY
8/13/2020 7:00 AM 0.01 0.0 M 0.0 M 0813200700 CLR KH 10 MI 40º 45% RH Calm + W 22 kt Tmxmn 75 40º F Ac Cu Cu+ SCT All day VSBY down to 3 mi K++ Extremely DRY Windy 2 bands of RW- - 1430; 1620 Large drops QPE 0.01 not enough to cut dust
8/14/2020 7:45 AM 0.00 0.0 M 0.0 M 0814200745 CLR -X K++ 3 MI 46º 36% RH Calm + W 18 kt Tmxmn 76 40 -X K++ all day 3 Colo fires Few Cu SCT Cu/Sc very DRY
8/15/2020 7:00 AM 0.00 0.0 M 0.0 M 0815200700 CLR -X K H 6 mi K++ N to SE 43º 54% RH Calm + W 17 kt Tmxmn 78 41 Williams Fork Fire 15 mi N VSBY down to 2 mi
8/16/2020 7:00 AM 0.00 0.0 M 0.0 M 0816200630 CLR -X K+ 6 MI 47º 43% RH CALM + W 15 KT Tmxmn 81 41ºF _X K K++ few Cu Williams Fork Fire Cu+ top NNE 15 mi K from Glenwood Canyon fire 85 mi West
8/17/2020 7:00 AM 0.00 0.0 M 0.0 M 0817200700 CLR -X K 10 MI 49º 50% RH CALM + N 11 KT Tmxmn 84 42ºF K K++ all day Few Ac Cu -X 8% RH very DRY
8/18/2020 7:00 AM 0.00 0.0 M 0.0 M 0818200700 Cs K H 10 mi 47º 55% RH Calm + E 14 Tmxmn 84 47º F CLR -X K all day Few Ac
8/19/2020 7:00 AM T 0.0 M 0.0 M 0819200800 CLR K H 10 MI 50º 53% RH Calm + N 13 km Tmxmn 83 46º F Ac SCt cu cu+ BKN VIRGA few droplets T
8/20/2020 8:00 AM 0.01 0.0 M 0.0 M 0820200800 CLR K H 10 MI 50º 53% RH Calm + E 19 kt Tmxmn 80 46ºF CLR K H Cu Cu+ Ns RW- - 2000-2005 0.01 inches I70 Tunnel 1500 RW WET road 5 mi RW on Divide
8/21/2020 8:00 AM 0.02 0.0 M 0.0 M 0821200800 CLR K -X 10 mi 44º 78% RH Calm + 17 kt Tmxmn 75 44º F Cu Cu+ RW- - 1440; 2130 - 2300 RW- - QPE 0.02 inches
8/22/2020 7:00 AM 0.00 0.0 M 0.0 M 0822200700 CLR K -X 6 MI 45º 55% RH Calm + E 17 kt Tmxmn 78 40º F CLR -X K K++ X FEW Cu extremely dry
8/23/2020 8:00 AM 0.00 0.0 M 0.0 M 0823200800 Ac BKN _X K+ H 5 mi 54º 44% rh Calm + N 19 kt Tmxmn 80 45º -X KH all day 11% RH VERY DRY
8/24/2020 8:50 AM 0.00 0.0 M 0.0 M 0824200850 Ac BKN -X K H 6 mi 60º 40% RH Calm + S 20 kt Tmxmn 79 50º F HOT Dry windy all day Ac BKN v SCT -X K H
8/25/2020 7:00 AM T 0.0 M 0.0 M 0825200630 Cs SCT K H 10 mi 50º 59% RH Calm + NNE 14 kt Tmxmn 82 50º F Ac BKN v SCT Cu SCT -X RW - - T 1630 - 1635
8/26/2020 8:00 AM 0.01 0.0 M 0.0 M 0826200800 Ac BKN v OVC 10 mi KH 53º 48% RH Calm + NW 17 kt Tmxmn 79 47ºF Ac BKN Cu+ RW- - SCT 1700-1830 QPE 0.01 inches
8/27/2020 8:30 AM 0.15 0.0 M 0.0 M 0827200830 CLR 12 MI 55º 60% RH CALM + N 13 KT TMXMN 73 44º F Ac OVC v BKN Cu Cu+ Ns RW - RW 1200-1300; 1415-1445 QPE 0.15 inches soaker
8/28/2020 7:00 AM 0.00 0.0 M 0.0 M 0828200700 Ac Cs OVC 15 mi 48º 62% RH Calm + E 7 kt Tmxmn 82 47º F Ac SCT v BKN
8/29/2020 7:00 AM 0.06 0.0 M 0.0 M 0829200700 As OVC 10 mi 44º 90% RH Calm + SE 18 kt Tmxmn 72 42º Ac Cs BKN v OVC AM Sc Ns RW - PM 1400; 1530-1645 RW- QPE 0.06 inches
8/30/2020 7:00 AM 0.42 0.0 M 0.0 M 0830200700 CLR 20+ MI 39º 93% RH CALM + S 18 KT Tmxmn 72 38ºF Frost on roof tops As Ns OVC R- R v R-Bands All day QPE 0.42 inches (0.36 0.38, 0.42) CFRNT Passage NNW flow 0700 083020 Fc SCT
8/31/2020 7:00 AM 0.08 0.0 M 0.0 M 0831200700 CLR KH 10 MI 40º 79% CALM + W 23 kt Tmxmn 65 37ºF Frost on roof tops CLR Cu Ac SCT AM Cu Cu+ Ns RW- RW 1430-1500 QPE 0.08 inches Ac SCT 1800-2200
9/1/2020 7:00 AM 0.11 0.0 M 0.0 M 0901200700 Sc BKN 20 mi 38º 92% RH Calm + S 22 kt Tmxmn 66 38º F CLR AM Sc Cu+ RW- 1420-1450; 2020-2100; 2200-2310 QPE 0.11 inches
9/2/2020 7:00 AM 0.00 0.0 M 0.0 M 0902200700 CLR 20+ MI 34º 88% RH Calm + E 18 kt Tmxmn 64 34ºF CLR few Cu Frost on roofs
9/3/2020 8:00 AM 0.00 0.0 M 0.0 M 0903200800 Cs SCT v BKN 20 mi 48 59% RH Calm + W 13 kt Tmxmn 70 33 Cu SCT CLR
9/4/2020 7:00 AM 0.00 0.0 M 0.0 M 0904200700 CLR 20+ mi 44º 48 RH Calm + NE 13 kt Tmxmn 78 38ºF CLR Few Cu Ac Very DRY
9/5/2020 7:00 AM 0.00 0.0 M 0.0 M 0905200700 CLR 20+ MI 44º 57% RH CALM + N 14 KT TMXMN 81 41º F CLR Cu SCT AM Cu SCT v BKN PM Very Dry 10-20% RH
9/6/2020 7:00 AM 0.00 0.0 M 0.0 M 0906299799 CLR H 10 mi 44º 38% RH Calm + W 13 kt Tmxmn 79 44º F CLR Cu SCT CLR VERY DRY
9/7/2020 7:00 AM 0.00 0.0 M 0.0 M 0907200700 CLR -X KH+ 7 MI 41º 41% RH CALM + NE 21 kt Tmxmn 78 41º CLR Few Cu CLR VERY DRY
9/8/2020 7:00 AM T 0.0 M 0.0 M 0908200700 St As OVC SCT RW- - SW- - 15 mi 35 75% RH SE 3+ W 19 kt Tmxmn 71 35º F X K++ VSBY 1-2 mi All Day HEAVY SMOKE CFRNT PSSG 2100 T
9/9/2020 7:00 AM 0.28 2.8 M 2.8 M 0909200700 St OVC 10 mi SCT SW- 23º 87% RH Calm + E 25 kt Tmxmn 48 21º F St OVC AM Ns S- BS S S+ 1300-1930 S- S— 1930-2200 MDT QPE 0.28 NEW 2.8 Depth 2.8 (2.5-3) inches Blowing and drifting snow S-E winds Bands of S+ BS+
9/10/2020 7:00 AM 0.06 1.3 M 1.0 M 0910200700 SC BKN V OVC 20+ MI 34º 91% RH CALM + E 16 kt Tmxmn 44 21ºF St OVC Ns SW- - all day PM S- New: 1.3; SWE 0.06: Depth 1.0 (0-1) melting on ground
9/11/2020 7:00 AM 0.09 0.7 M 0.5 M 0911200700 Sc OVC SCT SW- 15 mi 32º 92% RH NW 3+ SE 13 kt Tmxmn 53 31º F Sc BKN v SCT AM Ns SW- S- SP-1600-2300 0300-0500 rapid melt NEW 0.7 QPE 0.09 Depth 0.5 (0-1) inches
9/12/2020 8:50 AM T T M 0.0 M 0912200850 CLR 15 mi H 45º 62% RH Calm + SW 22 kt Tmxmn 48 32ºF Sc Ns OVC SW- - AM Sc SCT PM T New T QPE 0.0 DEPTH AL MELTED
9/13/2020 8:30 AM 0.00 0.0 M 0.0 M 0913200830 CLR 20 MI 45º 52% RH S 2 + N 12 KT Tmxmn 67 32º CLR H Cu SCT CLR
9/14/2020 7:00 AM 0.00 0.0 M 0.0 M 0914200700 CLR 20+ MI 36º 67% RH Calm + E 7 kt Tmxmn 73 35ºF CLR Cu SCT Sc BKN CLR
9/15/2020 7:00 AM 0.00 0.0 M 0.0 M 0915200700 CLR K ALOFT 20+ MI 39º 54% RH CALM + NE 13 kt Tmxmn 72 36ºF CLR Cu SCT AM Sc SCT v BKN PM CLR Very Dry
9/16/2020 7:00 AM 0.00 0.0 M 0.0 M 0916200700 X K+H+ 5 mi 35º 52% RH Calm + NE 12 kt Tmxmn 67 35º Smoke increasing all day Cu Sc SCT v BKN -X Very DRY RH 10-12% during day
9/17/2020 7:00 AM 0.00 0.0 M 0.0 M 0917200700 X K++ H 5 MI 36º 68% RH CALM + SE 10 kt Tmxmn 70 35º F X-X Ac SCT v BKN all day Very DRY
9/18/2020 7:00 AM 0.00 0.0 M 0.0 M 0918200700 Ac Cs BKN _X K H 8 mi 42º 46% RH Calm + N 11 kt Tmxmn 71 42º F X K+ all day very dry
9/19/2020 7:00 AM 0.00 0.0 M 0.0 M 0919200700 Ac Cs BKN -X H 10 mi 42º 48% RH Calm + NE 10 kt Tmxmn 69 40º F Ac Cs SCT v BKN all day Very DRY K H
9/20/2020 7:00 AM 0.00 0.0 M 0.0 M 0920200700 Ac Acc BKN 15 mi 43º 68% RH calm + E 12 kt Tmxmn 65 42ºF Ac Cs BKN v OVC all day DRY Pacific Front
9/21/2020 7:00 AM 0.02 0.0 M 0.0 M 0921200700 AC SCT 10 MI KH 41º 66% CALM + NW 16 Tmxmn 65 39ºF Frost on roof tops Ac BKN v OVC Ns RW- - 3x QPE 0.02 inches Very dry quick Evap
9/22/2020 7:00 AM 0.00 0.0 M 0.0 M 0922200700 Ac SCT KH 15 mi 39º 65% RH Calm + W 14 kt Tmxmn 71 35ºF Very DRY SCAT VIRGA
9/23/2020 7:00 AM 0.01 0.0 M 0.0 M 0923200700 Ac Cs SCT v BKN 15 mi kh 36º 93% RH Calm + NE 17 kt Tmxmn 69 36ºF Cu Sc Ns RW- - QPE 0.01 inch 1500-1510 wet the decks
9/24/2020 7:00 AM 0.00 0.0 M 0.0 M 0924200700 CLR -X E K H 10 mi 34ª 71% RH Calm +N 15 KT TMXMN 67 34º F Ac Cs SCT v BKN KH returns Very DRY Dusty
9/25/2020 7:00 AM 0.00 0.0 M 0.0 M 0225200700 Ac Cs 20 mi 43º 55% RH NW 3+12 kt Tmxmn 74 34ºF Cs Cu K East Very Dry Windy
9/26/2020 7:00 AM 0.00 0.0 M 0.0 M 0926200700 Ac Cs BKN KH 10 mi 54º 28% NW 5+23 kt Tmxmn 73 52º F Warm windy night Very DRY Ac Cs SCT v BKN all day VSBY 15-20 mi Smoke returned after 1800
9/27/2020 7:00 AM 0.00 0.0 M 0.0 M 0927200800 Sc BKN 20 mi 40º 70% RH NW 5+31 kt Tmxmn 68 40º Ac Cs SCT v BKN all day KH Very Windy and Dry
9/28/2020 7:00 AM 0.00 0.0 M 0.0 M 0928200700 CLR 20+ MI 22º 71% RH Calm + N 22 kt Tmxmn 53 22 Windy cool all day
9/29/2020 7:00 AM 0.00 0.0 M 0.0 M 0929200700 CLR 20+ mi 29º 44% RH Calm + E 18 kt Tmxmn 50 27º F CLR Cool Dry all day
9/30/2020 7:00 AM 0.00 0.0 M 0.0 M 0930200700 CLR 20+ mi 33º 48% RH Calm + E 18 kt Tmxmn 65 33ºF CLR DRY



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
1/12/2020 1/16/2020 7:00 AM 5 0.29 20.6 M 0117200855 Ns SW- - 3 mi 25º 67% RH SSE 1 + SW 15 KT TMXMN 44 16ºF Cs As OVC all day Total Accum 12-17 Jan 5.5 new SWE 0.29; Depth 20.6 (14-26) inches AMS 100TH Annual Meeting BOS BS BS+ while in BOS Snow Boards 4.5-7; 0-6; 0-1.5 5-day accumulation



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground