Station Overview Station Location
Station Number MD-PG-24 Latitude 38.792607
Station Name Forest Heights 1.6 SE Longitude -76.979078
County Prince George's Elevation (ft) 125



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 09 3.61 6.12 31 6.12 31 0.00 0 0 10 7 0.0 0 0
Nov 09 3.34 4.88 30 3.62 26 1.26 4 1 9 2 0.0 0 0
Dec 09 3.24 7.28 31 7.28 31 0.00 0 0 13 0 19.1 4 4
Jan 10 3.01 2.06 31 2.06 31 0.00 0 0 11 4 8.1 3 3
Feb 10 2.68 0.62 11 0.62 11 0.00 0 0 4 0 4.4 2 6
March 10 3.66 4.68 31 4.68 31 0.00 0 0 14 2 0.0 0 0
April 10 3.31 2.04 30 2.04 30 0.00 0 0 6 1 0.0 0 0
May 10 4.15 3.32 31 2.12 27 1.20 4 1 9 2 0.0 0 0
June 10 3.81 2.51 29 2.51 29 0.00 0 0 8 2 0.0 0 0
July 10 3.98 6.07 31 6.07 31 0.00 0 0 7 3 0.0 0 0
Aug 10 3.24 5.22 31 5.22 31 0.00 0 0 9 4 0.0 0 0
Sept 10 3.71 2.89 30 2.55 27 0.34 3 1 4 0 0.0 0 0
Water Year Totals: 41.74" 47.69" 347 days 44.89" 336 2.80" 11 days 3 104 days 27 days 31.6" 9 days 13 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
10/1/2009 0.01
10/2/2009 0.00
10/3/2009 T
10/4/2009 0.00
10/5/2009 0.00
10/6/2009 0.00
10/7/2009 T
10/8/2009 0.00
10/9/2009 T
10/10/2009 0.01
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 0.00
10/14/2009 0.00
10/15/2009 0.13
10/16/2009 0.74
10/17/2009 0.90
10/18/2009 1.28
10/19/2009 T
10/20/2009 0.00
10/21/2009 0.00
10/22/2009 0.00
10/23/2009 0.00
10/24/2009 T
10/25/2009 0.86
10/26/2009 0.00
10/27/2009 0.51
10/28/2009 1.67
10/29/2009 T
10/30/2009 T
10/31/2009 0.01
11/1/2009 0.68
11/2/2009 0.12
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.14
11/12/2009 1.35
11/13/2009 0.72
11/14/2009 0.28
11/15/2009 T
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 T
11/20/2009 0.24
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 **
11/24/2009 **
11/25/2009 **
11/26/2009 1.26
11/27/2009 0.08
11/28/2009 0.01
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.34
12/2/2009 0.00
12/3/2009 0.81
12/4/2009 0.00
12/5/2009 0.04
12/6/2009 0.84
12/7/2009 0.00
12/8/2009 0.00
12/9/2009 1.58
12/10/2009 0.03
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.02
12/14/2009 0.49
12/15/2009 0.00
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 0.00
12/19/2009 0.50
12/20/2009 1.10
12/21/2009 0.00
12/22/2009 0.00
12/23/2009 0.00
12/24/2009 0.00
12/25/2009 0.00
12/26/2009 1.28
12/27/2009 0.10
12/28/2009 0.00
12/29/2009 0.00
12/30/2009 0.00
12/31/2009 0.15
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.27
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 0.00
1/5/2010 0.00
1/6/2010 T
1/7/2010 T
1/8/2010 0.06
1/9/2010 0.00
1/10/2010 0.00
1/11/2010 0.00
1/12/2010 T
1/13/2010 0.00
1/14/2010 0.00
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 0.03
1/18/2010 0.72
1/19/2010 0.00
1/20/2010 0.02
1/21/2010 0.03
1/22/2010 0.18
1/23/2010 0.01
1/24/2010 0.00
1/25/2010 0.36
1/26/2010 0.04
1/27/2010 0.00
1/28/2010 0.00
1/29/2010 0.00
1/30/2010 T
1/31/2010 0.34
2/1/2010 0.00
2/2/2010 0.00
2/3/2010 0.34
2/4/2010 0.00
2/5/2010 0.00
2/6/2010
2/7/2010
2/8/2010
2/9/2010
2/10/2010
2/11/2010
2/12/2010
2/13/2010
2/14/2010
2/15/2010
2/16/2010
2/17/2010
2/18/2010
2/19/2010
2/20/2010
2/21/2010
2/22/2010
2/23/2010 0.22
2/24/2010 0.00
2/25/2010 0.05
2/26/2010 0.00
2/27/2010 0.01
2/28/2010 0.00
3/1/2010 T
3/2/2010 0.00
3/3/2010 0.13
3/4/2010 0.02
3/5/2010 0.00
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.00
3/9/2010 0.00
3/10/2010 0.00
3/11/2010 0.00
3/12/2010 0.51
3/13/2010 0.76
3/14/2010 0.47
3/15/2010 0.12
3/16/2010 0.10
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.00
3/20/2010 0.00
3/21/2010 0.00
3/22/2010 T
3/23/2010 0.40
3/24/2010 0.01
3/25/2010 0.00
3/26/2010 0.51
3/27/2010 0.14
3/28/2010 0.00
3/29/2010 1.21
3/30/2010 0.29
3/31/2010 0.01
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.00
4/2/2010 0.00
4/3/2010 0.00
4/4/2010 0.00
4/5/2010 0.00
4/6/2010 0.00
4/7/2010 0.00
4/8/2010 0.00
4/9/2010 1.01
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 0.00
4/13/2010 0.00
4/14/2010 0.16
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 T
4/18/2010 0.00
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 0.26
4/23/2010 0.00
4/24/2010 0.00
4/25/2010 0.14
4/26/2010 0.23
4/27/2010 0.24
4/28/2010 0.00
4/29/2010 0.00
4/30/2010 0.00
5/1/2010 0.00
5/2/2010 T
5/3/2010 0.10
5/4/2010 0.09
5/5/2010 0.00
5/6/2010 0.00
5/7/2010 0.00
5/8/2010 0.00
5/9/2010 0.00
5/10/2010 0.00
5/11/2010 0.00
5/12/2010 0.10
5/13/2010 0.02
5/14/2010 0.00
5/15/2010 0.28
5/16/2010 0.00
5/17/2010 0.04
5/18/2010 0.62
5/19/2010 0.32
5/20/2010 0.00
5/21/2010 0.00
5/22/2010 0.00
5/23/2010 0.55
5/24/2010 T
5/25/2010 **
5/26/2010 **
5/27/2010 **
5/28/2010 1.20
5/29/2010 0.00
5/30/2010 0.00
5/31/2010 0.00
6/1/2010 0.00
6/2/2010 0.34
6/3/2010 0.00
6/4/2010 0.53
6/5/2010 0.00
6/6/2010 0.00
6/7/2010 0.14
6/8/2010 0.00
6/9/2010 0.00
6/10/2010 0.10
6/11/2010 0.00
6/12/2010 0.00
6/13/2010 0.05
6/14/2010 0.00
6/15/2010 0.41
6/16/2010 0.00
6/17/2010 0.00
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.00
6/21/2010 0.00
6/22/2010 0.00
6/23/2010 0.07
6/24/2010 0.00
6/25/2010 T
6/26/2010 0.00
6/27/2010 0.00
6/28/2010
6/29/2010 0.87
6/30/2010 T
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 0.00
7/3/2010 0.00
7/4/2010 0.00
7/5/2010 0.00
7/6/2010 0.00
7/7/2010 0.00
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.15
7/11/2010 0.79
7/12/2010 0.00
7/13/2010 1.55
7/14/2010 2.06
7/15/2010 T
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 T
7/20/2010 0.03
7/21/2010 0.00
7/22/2010 T
7/23/2010 0.00
7/24/2010 0.00
7/25/2010 0.00
7/26/2010 0.82
7/27/2010 0.00
7/28/2010 0.00
7/29/2010 0.00
7/30/2010 0.67
7/31/2010 0.00
8/1/2010 0.10
8/2/2010 0.03
8/3/2010 T
8/4/2010 T
8/5/2010 0.00
8/6/2010 1.22
8/7/2010 0.00
8/8/2010 0.00
8/9/2010 0.00
8/10/2010 0.00
8/11/2010 0.00
8/12/2010 0.00
8/13/2010 2.07
8/14/2010 T
8/15/2010 0.00
8/16/2010 0.18
8/17/2010 0.00
8/18/2010 0.33
8/19/2010 0.67
8/20/2010 0.00
8/21/2010 0.00
8/22/2010 T
8/23/2010 0.44
8/24/2010 0.18
8/25/2010 0.00
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 0.00
8/29/2010 0.00
8/30/2010 0.00
8/31/2010 0.00
9/1/2010 0.00
9/2/2010 0.00
9/3/2010 0.00
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 0.00
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.00
9/10/2010 0.00
9/11/2010 0.00
9/12/2010 0.34
9/13/2010 0.37
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.00
9/17/2010 0.08
9/18/2010 0.00
9/19/2010 0.00
9/20/2010 0.00
9/21/2010 0.00
9/22/2010 0.00
9/23/2010 0.00
9/24/2010 0.00
9/25/2010 0.00
9/26/2010 0.00
9/27/2010 **
9/28/2010 **
9/29/2010 0.34
9/30/2010 1.76



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.01 0.0 M 0.0 M Afternoon showers.
10/2/2009 7:00 AM 0.00 0.0 M 0.0 M
10/3/2009 7:00 AM T 0.0 M 0.0 M Occasional light rain late last evening.
10/4/2009 7:00 AM 0.00 0.0 M 0.0 M
10/5/2009 7:00 AM 0.00 0.0 M 0.0 M
10/6/2009 7:00 AM 0.00 0.0 M 0.0 M
10/7/2009 7:00 AM T 0.0 M 0.0 M Occasional light rain in the predawn.
10/8/2009 7:00 AM 0.00 0.0 M 0.0 M
10/9/2009 7:00 AM T 0.0 M 0.0 M Occasional light rain late last evening.
10/10/2009 7:00 AM 0.01 0.0 M 0.0 M -SHRA overnight; the first measurable precip of the month, and not much at that.
10/11/2009 6:00 AM 0.00 0.0 M 0.0 M
10/12/2009 7:00 AM 0.00 0.0 M 0.0 M
10/13/2009 7:00 AM 0.00 0.0 M 0.0 M
10/14/2009 7:00 AM 0.00 0.0 M 0.0 M
10/15/2009 7:30 AM 0.13 0.0 M 0.0 M Light rain since yesterday afternoon.
10/16/2009 7:30 AM 0.74 0.0 M 0.0 M Light rain or drizzle for the past 24 hours.
10/17/2009 7:30 AM 0.90 0.0 M 0.0 M Rain for the past 24 hours again.
10/18/2009 7:00 AM 1.28 0.0 M 0.0 M Precip ended about an hour ago.
10/19/2009 7:00 AM T 0.0 M 0.0 M Sprinkles mid to late morning.
10/20/2009 7:00 AM 0.00 0.0 M 0.0 M
10/21/2009 7:00 AM 0.00 0.0 M 0.0 M
10/22/2009 7:00 AM 0.00 0.0 M 0.0 M
10/23/2009 7:00 AM 0.00 0.0 M 0.0 M
10/24/2009 7:30 AM T 0.0 M 0.0 M Occasional -RA overnight.
10/25/2009 7:00 AM 0.86 0.0 M 0.0 M +SHRA mid and late afternoon.
10/26/2009 7:00 AM 0.00 0.0 M 0.0 M
10/27/2009 7:15 AM 0.51 0.0 M 0.0 M -RA overnight.
10/28/2009 7:00 AM 1.67 0.0 M 0.0 M Moderate to heavy rain in the early morning hours. Otherwise -RA/-DZ the past 24 hours.
10/29/2009 7:00 AM T 0.0 M 0.0 M Light drizzle until about mid morning.
10/30/2009 7:00 AM T 0.0 M 0.0 M Light drizzle late in the evening.
10/31/2009 7:00 AM 0.01 0.0 M 0.0 M Light drizzle through the night.
11/1/2009 7:00 AM 0.68 0.0 M 0.0 M -RA overnight.
11/2/2009 7:00 AM 0.12 0.0 M 0.0 M -RA until early afternoon.
11/3/2009 7:00 AM 0.00 0.0 M 0.0 M
11/4/2009 7:00 AM 0.00 0.0 M 0.0 M
11/5/2009 7:00 AM 0.00 0.0 M 0.0 M
11/6/2009 7:00 AM 0.00 0.0 M 0.0 M
11/7/2009 7:00 AM 0.00 0.0 M 0.0 M
11/8/2009 6:00 AM 0.00 0.0 M 0.0 M
11/9/2009 7:00 AM 0.00 0.0 M 0.0 M
11/10/2009 7:00 AM 0.00 0.0 M 0.0 M
11/11/2009 7:00 AM 0.14 0.0 M 0.0 M Light rain began late last evening.
11/12/2009 7:30 AM 1.35 0.0 M 0.0 M -RA for the past 24 hours.
11/13/2009 7:30 AM 0.72 0.0 M 0.0 M -RA steady all day, then became intermittent after midnight and ended around 6 AM.
11/14/2009 7:30 AM 0.28 0.0 M 0.0 M RA midday otherwise -RA/-DZ the past 24 hours. Storm total 2.50 inches. -DZ at obs time.
11/15/2009 7:00 AM T 0.0 M 0.0 M Light drizzle ended around midday.
11/16/2009 7:00 AM 0.00 0.0 M 0.0 M
11/17/2009 7:00 AM 0.00 0.0 M 0.0 M
11/18/2009 6:00 AM 0.00 0.0 M 0.0 M
11/19/2009 7:00 AM T 0.0 M 0.0 M -RA in the predawn.
11/20/2009 7:00 AM 0.24 0.0 M 0.0 M TSRA late last evening otherwise occasional light rain from midafternoon into the predawn.
11/21/2009 7:00 AM 0.00 0.0 M 0.0 M
11/22/2009 7:00 AM 0.00 0.0 M 0.0 M
11/27/2009 7:30 AM 0.08 0.0 M 0.0 M -RA overnight.
11/28/2009 7:00 AM 0.01 0.0 M 0.0 M -SHRA early afternoon.
11/29/2009 7:00 AM 0.00 0.0 M 0.0 M
11/30/2009 7:00 AM 0.00 0.0 M 0.0 M
12/1/2009 7:00 AM 0.34 0.0 M 0.0 M -RA late morning into early evening.
12/2/2009 7:00 AM 0.00 0.0 M 0.0 M
12/3/2009 7:00 AM 0.81 0.0 M 0.0 M Periods of rain from midday into early this morning.
12/4/2009 7:00 AM 0.00 0.0 M 0.0 M
12/5/2009 7:00 AM 0.04 0.0 M 0.0 M -RA in the predawn.
12/6/2009 7:00 AM 0.84 1.0 M 1.0 M Rain changed to snow at about 10:30 AM Saturday. DELAYED REPORT: based on nearby observations...entered around 6 PM Sunday.
12/7/2009 7:00 AM 0.00 0.0 M 0.5 M
12/8/2009 7:00 AM 0.00 0.0 M 0.0 M
12/9/2009 6:30 AM 1.58 T M 0.0 M -RAPL briefly last evening after precipitation started otherwise light to moderate rain through obs time.
12/10/2009 7:00 AM 0.03 0.0 M 0.0 M Rain ended just after yesterday's obs time.
12/11/2009 7:00 AM 0.00 0.0 M 0.0 M
12/12/2009 7:00 AM 0.00 0.0 M 0.0 M
12/13/2009 6:00 AM 0.02 0.0 M 0.0 M -RA at obs time.
12/14/2009 7:00 AM 0.49 0.0 M 0.0 M -RA ended late in the afternoon. Dense fog at obs time.
12/15/2009 7:00 AM 0.00 0.0 M 0.0 M
12/16/2009 7:00 AM 0.00 0.0 M 0.0 M
12/17/2009 7:00 AM 0.00 0.0 M 0.0 M
12/18/2009 7:00 AM 0.00 0.0 M 0.0 M
12/19/2009 7:00 AM 0.50 6.0 M 6.0 M Delayed data based on nearby reports.
12/20/2009 7:00 AM 1.10 12.0 M 18.0 M Delayed report based on nearby data.
12/21/2009 7:00 AM 0.00 0.0 M M M
12/22/2009 7:00 AM 0.00 0.0 M M M
12/23/2009 7:00 AM 0.00 0.0 M M M
12/24/2009 7:00 AM 0.00 0.0 M M M
12/25/2009 7:00 AM 0.00 0.0 M M M
12/26/2009 6:30 AM 1.28 0.0 M T M Light to moderate rain from yesterday afternoon until the current obs time. Patchy dense fog in the area at obs time.
12/27/2009 6:00 AM 0.10 0.0 M 0.0 M Light rain and drizzle until afternoon.
12/28/2009 6:00 AM 0.00 0.0 M 0.0 M
12/29/2009 7:00 AM 0.00 0.0 M 0.0 M
12/30/2009 7:00 AM 0.00 0.0 M 0.0 M
12/31/2009 6:30 AM 0.15 0.1 M T M -FZRA, some -PL.
1/1/2010 7:00 AM 0.27 0.0 M 0.0 M -FZRA ended around 8 AM. -RA 8-9 AM and 4-11 PM.
1/2/2010 7:00 AM 0.00 0.0 M 0.0 M
1/3/2010 7:00 AM 0.00 0.0 M 0.0 M
1/4/2010 7:00 AM 0.00 0.0 M 0.0 M
1/5/2010 7:00 AM 0.00 0.0 M 0.0 M
1/6/2010 7:00 AM T T M 0.0 M Flurries after obs time.
1/7/2010 7:00 AM T T M 0.0 M Flurries midmorning.
1/8/2010 7:00 AM 0.06 1.5 0.06 1.5 0.06 Light snow overnight.
1/9/2010 7:00 AM 0.00 0.0 M 0.5 M
1/10/2010 7:00 AM 0.00 0.0 M T M
1/11/2010 7:00 AM 0.00 0.0 M 0.0 M
1/12/2010 7:00 AM T T M 0.0 M Flurries last evening.
1/13/2010 7:00 AM 0.00 0.0 M 0.0 M
1/14/2010 7:00 AM 0.00 0.0 M 0.0 M
1/15/2010 7:00 AM 0.00 0.0 M 0.0 M
1/16/2010 7:00 AM 0.00 0.0 M 0.0 M
1/17/2010 7:00 AM 0.03 0.0 M 0.0 M -RA began around 6 AM.
1/18/2010 7:00 AM 0.72 0.0 M 0.0 M Steady rain until 1 PM then occasional drizzle through the evening.
1/19/2010 7:00 AM 0.00 0.0 M 0.0 M
1/20/2010 7:00 AM 0.02 T M T M Light shower midmorning yesterday, T; light mixed precip this morning 0.02.
1/21/2010 7:00 AM 0.03 0.1 M 0.0 M -RASNPL ended by midmorning.
1/22/2010 7:00 AM 0.18 T M 0.0 M -RAPL for about 30 minutes at the start, then occasional -RA through 7 AM.
1/23/2010 7:00 AM 0.01 0.0 M 0.0 M Occasional rain until midday.
1/24/2010 7:00 AM 0.00 0.0 M 0.0 M
1/25/2010 7:00 AM 0.36 0.0 M 0.0 M Occasional light rain from yesterday afternoon onward; light rain at obs time.
1/26/2010 7:00 AM 0.04 0.0 M 0.0 M Occasional light rain until late morning.
1/27/2010 7:00 AM 0.00 0.0 M 0.0 M
1/28/2010 7:00 AM 0.00 0.0 M 0.0 M
1/29/2010 7:00 AM 0.00 0.0 M 0.0 M
1/30/2010 8:00 AM T T T T T -SN started around 7:30 AM. Made a run by this site whilst on the way back home from KDCA to MD-PG-3.
1/31/2010 8:00 AM 0.34 6.5 M 6.0 M Light to moderate snow.
2/1/2010 7:00 AM 0.00 0.0 M 5.0 M
2/2/2010 7:00 AM 0.00 0.0 M 4.0 M
2/3/2010 8:00 AM 0.34 4.3 M 6.0 M Light picturesque snow last evening and overnight.
2/4/2010 7:00 AM 0.00 0.0 M 2.5 M
2/5/2010 7:00 AM 0.00 0.0 M M M This site will not report for several days, after today.
2/23/2010 7:45 AM 0.22 0.0 M 3.0 M -RA in the afternoon and evening. Snow cover 0-6 inches. Station MD-PG-24 is back in business.
2/24/2010 7:00 AM 0.00 0.0 M M M
2/25/2010 7:45 AM 0.05 T M 2.0 M Light rain and snow overnight. Snow cover 0-4 inches.
2/26/2010 8:00 AM 0.00 0.0 M M M
2/27/2010 7:00 AM 0.01 0.1 M T M -SN in the predawn.
2/28/2010 7:00 AM 0.00 0.0 M T M
3/1/2010 7:00 AM T 0.0 M 0.0 M -SHRA in the eve.
3/2/2010 7:00 AM 0.00 0.0 M 0.0 M
3/3/2010 7:00 AM 0.13 T M 0.0 M -RA, occasionally mixed with a few wet flakes.
3/4/2010 7:00 AM 0.02 T M 0.0 M -RA most of the day; few wet flakes after 0700 yesterday.
3/5/2010 7:00 AM 0.00 0.0 M 0.0 M
3/6/2010 7:00 AM 0.00 0.0 M 0.0 M
3/7/2010 7:00 AM 0.00 0.0 M 0.0 M
3/8/2010 7:00 AM 0.00 0.0 M 0.0 M
3/9/2010 7:00 AM 0.00 0.0 M 0.0 M
3/10/2010 7:00 AM 0.00 0.0 M 0.0 M
3/11/2010 7:00 AM 0.00 0.0 M 0.0 M
3/12/2010 7:30 AM 0.51 0.0 M 0.0 M -RA occasionally RA overnight.
3/13/2010 7:30 AM 0.76 0.0 M 0.0 M -RA, periods of +RA overnight. Rain tapered to -DZ at obs time. Heard the first few spring peepers.
3/14/2010 7:30 AM 0.47 0.0 M 0.0 M -RA ended in the evening, then -SHRA in the predawn.
3/15/2010 6:45 AM 0.12 0.0 M 0.0 M Occasional rain and/or drizzle last evening and overnight. -DZ at obs time.
3/16/2010 7:00 AM 0.10 0.0 M 0.0 M Occasional light rain or drizzle through late evening.
3/17/2010 7:00 AM 0.00 0.0 M 0.0 M
3/18/2010 7:00 AM 0.00 0.0 M 0.0 M
3/19/2010 7:00 AM 0.00 0.0 M 0.0 M
3/20/2010 7:00 AM 0.00 0.0 M 0.0 M
3/21/2010 7:00 AM 0.00 0.0 M 0.0 M
3/22/2010 7:00 AM T 0.0 M 0.0 M Sprinkles in the predawn.
3/23/2010 7:00 AM 0.40 0.0 M 0.0 M Showers and weak thunderstorms late morning to mid afternoon.
3/24/2010 7:00 AM 0.01 0.0 M 0.0 M Occasional rain in the afternoon.
3/25/2010 7:00 AM 0.00 0.0 M 0.0 M
3/26/2010 7:30 AM 0.51 0.0 M 0.0 M Occasional rain started last evening; not raining at obs time.
3/27/2010 7:00 AM 0.14 0.0 M 0.0 M Occasional rain midmorning to midday.
3/28/2010 7:00 AM 0.00 0.0 M 0.0 M
3/29/2010 6:30 AM 1.21 0.0 M 0.0 M Intermittent +SHRA 8PM-midnight EDT, otherwise -RA overnight. -SHRA at obs time.
3/30/2010 7:00 AM 0.29 0.0 M 0.0 M Light rain until midafternoon then intermittent light rain starting midnight.
3/31/2010 7:00 AM 0.01 0.0 M 0.0 M Occasional rain 8-9 AM and overnight.
4/1/2010 7:00 AM 0.00 0.0 M 0.0 M
4/2/2010 7:00 AM 0.00 0.0 M 0.0 M
4/3/2010 7:00 AM 0.00 0.0 M 0.0 M
4/4/2010 6:00 AM 0.00 0.0 M 0.0 M
4/5/2010 7:00 AM 0.00 0.0 M 0.0 M
4/6/2010 7:00 AM 0.00 0.0 M 0.0 M
4/7/2010 7:00 AM 0.00 0.0 M 0.0 M
4/8/2010 7:00 AM 0.00 0.0 M 0.0 M
4/9/2010 7:30 AM 1.01 0.0 M 0.0 M +TSRA around 8 PM otherwise light to moderate showers 7 PM-4 AM. No damage from winds in the vicinity.
4/10/2010 7:00 AM 0.00 0.0 M 0.0 M
4/11/2010 7:00 AM 0.00 0.0 M 0.0 M
4/12/2010 7:00 AM 0.00 0.0 M 0.0 M
4/13/2010 6:00 AM 0.00 0.0 M 0.0 M
4/14/2010 7:00 AM 0.16 0.0 M 0.0 M Occasional rain during the day and early evening.
4/15/2010 7:00 AM 0.00 0.0 M 0.0 M
4/16/2010 7:00 AM 0.00 0.0 M 0.0 M
4/17/2010 6:00 AM T 0.0 M 0.0 M -SHRA in the afternoon and evening.
4/18/2010 7:00 AM 0.00 0.0 M 0.0 M
4/19/2010 7:00 AM 0.00 0.0 M 0.0 M
4/20/2010 7:00 AM 0.00 0.0 M 0.0 M
4/21/2010 7:00 AM 0.00 0.0 M 0.0 M
4/22/2010 7:30 AM 0.26 0.0 M 0.0 M Rain during the day.
4/23/2010 7:00 AM 0.00 0.0 M 0.0 M
4/24/2010 7:00 AM 0.00 0.0 M 0.0 M
4/25/2010 7:00 AM 0.14 0.0 M 0.0 M Occasional rain started last evening.
4/26/2010 7:00 AM 0.23 0.0 M 0.0 M Thunderstorm around midnight otherwise light showers into the predawn.
4/27/2010 7:00 AM 0.24 0.0 M 0.0 M Occasional rain from midmorning to predawn.
4/28/2010 7:00 AM 0.00 0.0 M 0.0 M
4/29/2010 7:00 AM 0.00 0.0 M 0.0 M
4/30/2010 7:00 AM 0.00 0.0 M 0.0 M
5/1/2010 7:00 AM 0.00 0.0 M 0.0 M
5/2/2010 7:00 AM T 0.0 M 0.0 M Light showers in the predawn.
5/3/2010 6:45 AM 0.10 0.0 M 0.0 M Light rain started earlier this morning.
5/4/2010 7:00 AM 0.09 0.0 M 0.0 M Light showers until midmorning.
5/5/2010 7:00 AM 0.00 0.0 M 0.0 M
5/6/2010 7:00 AM 0.00 0.0 M 0.0 M
5/7/2010 7:00 AM 0.00 0.0 M 0.0 M
5/8/2010 7:00 AM 0.00 0.0 M 0.0 M
5/9/2010 6:00 AM 0.00 0.0 M 0.0 M Happy Mothers' Day.
5/10/2010 7:00 AM 0.00 0.0 M 0.0 M
5/11/2010 7:00 AM 0.00 0.0 M 0.0 M
5/12/2010 7:00 AM 0.10 0.0 M 0.0 M Occasional rain.
5/13/2010 7:00 AM 0.02 0.0 M 0.0 M Intermittent -RA in the day and evening; brief -TSRA late afternoon.
5/14/2010 7:00 AM 0.00 0.0 M 0.0 M
5/15/2010 7:00 AM 0.28 0.0 M 0.0 M -TSRA 7-730 PM 0.03; +TSRA 8-830 PM 0.25. No severe weather in the vicinity.
5/16/2010 7:00 AM 0.00 0.0 M 0.0 M
5/17/2010 7:00 AM 0.04 0.0 M 0.0 M Light rain this morning.
5/18/2010 6:30 AM 0.62 0.0 M 0.0 M Light rain and drizzle continued all day yesterday and through obs time this morning.
5/19/2010 7:00 AM 0.32 0.0 M 0.0 M Light to moderate rain until late morning.
5/20/2010 7:00 AM 0.00 0.0 M 0.0 M
5/21/2010 7:00 AM 0.00 0.0 M 0.0 M
5/22/2010 7:00 AM 0.00 0.0 M 0.0 M
5/23/2010 7:30 AM 0.55 0.0 M 0.0 M Showers off and on last evening and overnight. Not raining at obs time.
5/24/2010 7:30 AM T 0.0 M 0.0 M Light showers 5-6 PM and at obs time this morning.
5/29/2010 7:00 AM 0.00 0.0 M 0.0 M
5/30/2010 7:00 AM 0.00 0.0 M 0.0 M
5/31/2010 7:00 AM 0.00 0.0 M 0.0 M
6/1/2010 7:00 AM 0.00 0.0 M 0.0 M
6/2/2010 7:00 AM 0.34 0.0 M 0.0 M Thunderstorm in the early afternoon.
6/3/2010 7:00 AM 0.00 0.0 M 0.0 M
6/4/2010 7:00 AM 0.53 0.0 M 0.0 M Thunderstorm in the late afternoon.
6/5/2010 7:00 AM 0.00 0.0 M 0.0 M
6/6/2010 7:00 AM 0.00 0.0 M 0.0 M
6/7/2010 8:00 AM 0.14 0.0 M 0.0 M Weak thunderstorm in the afternoon.
6/8/2010 7:00 AM 0.00 0.0 M 0.0 M
6/9/2010 7:00 AM 0.00 0.0 M 0.0 M
6/10/2010 7:00 AM 0.10 0.0 M 0.0 M Occasional light rain yesterday morning through midafternoon. Brief shower around 4-5 AM.
6/11/2010 7:00 AM 0.00 0.0 M 0.0 M
6/12/2010 7:00 AM 0.00 0.0 M 0.0 M
6/13/2010 7:00 AM 0.05 0.0 M 0.0 M Weak thunderstorm last evening.
6/14/2010 7:00 AM 0.00 0.0 M 0.0 M
6/15/2010 7:00 AM 0.41 0.0 M 0.0 M Two heavy showers in the evening, 0.28 and 0.13 inch.
6/16/2010 7:00 AM 0.00 0.0 M M M
6/17/2010 7:00 AM 0.00 0.0 M M M
6/18/2010 7:00 AM 0.00 0.0 M M M
6/19/2010 7:00 AM 0.00 0.0 M M M
6/20/2010 7:00 AM 0.00 0.0 M M M
6/21/2010 7:00 AM 0.00 0.0 M M M
6/22/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM 0.07 0.0 M 0.0 M Weak -TSRA last eve.
6/24/2010 7:00 AM 0.00 0.0 M 0.0 M
6/25/2010 7:00 AM T 0.0 M 0.0 M Sprinkles late in the afternoon.
6/26/2010 7:00 AM 0.00 0.0 M 0.0 M
6/27/2010 7:00 AM 0.00 0.0 M 0.0 M
6/29/2010 7:00 AM 0.87 0.0 M 0.0 M Non-severe thunderstorm 3-4 PM.
6/30/2010 7:00 AM T 0.0 M 0.0 M Light shower around 3 AM.
7/1/2010 7:00 AM 0.00 0.0 M 0.0 M
7/2/2010 7:00 AM 0.00 0.0 M 0.0 M
7/3/2010 7:00 AM 0.00 0.0 M 0.0 M
7/4/2010 7:00 AM 0.00 0.0 M 0.0 M
7/5/2010 7:00 AM 0.00 0.0 M 0.0 M
7/6/2010 7:00 AM 0.00 0.0 M 0.0 M
7/7/2010 7:00 AM 0.00 0.0 M 0.0 M
7/8/2010 7:00 AM 0.00 0.0 M 0.0 M
7/9/2010 7:00 AM 0.00 0.0 M 0.0 M
7/10/2010 7:00 AM 0.15 0.0 M 0.0 M Light rain overnight.
7/11/2010 7:00 AM 0.79 0.0 M 0.0 M Rain continued until early afternoon.
7/12/2010 7:00 AM 0.00 0.0 M 0.0 M
7/13/2010 7:00 AM 1.55 0.0 M 0.0 M Showers and thunderstorms yesterday afternoon and evening, 1.29 inches; overnight showers 0.26 inch.
7/14/2010 7:00 AM 2.06 0.0 M 0.0 M Series of +TSRA late eve and predawn.
7/15/2010 7:00 AM T 0.0 M 0.0 M Light rain.
7/16/2010 7:00 AM 0.00 0.0 M 0.0 M
7/17/2010 7:00 AM 0.00 0.0 M 0.0 M
7/18/2010 7:00 AM 0.00 0.0 M 0.0 M
7/19/2010 7:00 AM T 0.0 M 0.0 M Thunderstorms to the north late last evening.
7/20/2010 7:00 AM 0.03 0.0 M 0.0 M Light showers around midday, T. -TSRA in the evening, 0.03.
7/21/2010 7:00 AM 0.00 0.0 M M M
7/22/2010 7:00 AM T M M M M
7/23/2010 7:00 AM 0.00 0.0 M M M
7/24/2010 7:00 AM 0.00 0.0 M M M
7/25/2010 7:00 AM 0.00 0.0 M 0.0 M
7/26/2010 7:00 AM 0.82 0.0 M 0.0 M Strong but not severe thunderstorm. No wind damage or flooding in the vicinity.
7/27/2010 6:00 AM 0.00 0.0 M 0.0 M
7/28/2010 7:00 AM 0.00 0.0 M 0.0 M
7/29/2010 7:00 AM 0.00 0.0 M 0.0 M
7/30/2010 7:00 AM 0.67 0.0 M 0.0 M Thunderstorm with heavy rain midafternoon.
7/31/2010 7:00 AM 0.00 0.0 M 0.0 M
8/1/2010 7:00 AM 0.10 0.0 M 0.0 M Predawn light rain.
8/2/2010 7:00 AM 0.03 0.0 M 0.0 M Occasional light rain.
8/3/2010 7:00 AM T 0.0 M 0.0 M Rain ended by 8 AM.
8/4/2010 7:00 AM T 0.0 M 0.0 M Light showers late afternoon and earlier this morning.
8/5/2010 7:00 AM 0.00 0.0 M 0.0 M
8/6/2010 7:45 AM 1.22 0.0 M 0.0 M Severe thunderstorm 3:45-4:15 PM with 0.88 precip. Lesser thunderstorms through 7:45 PM. Several large branches down in vicinity; but much less damage than at site MD-PG-3/Oxon Hill, some 1.2 miles to the NW.
8/7/2010 7:00 AM 0.00 0.0 M 0.0 M
8/8/2010 7:00 AM 0.00 0.0 M 0.0 M
8/9/2010 7:00 AM 0.00 0.0 M 0.0 M
8/10/2010 7:00 AM 0.00 0.0 M 0.0 M
8/11/2010 7:00 AM 0.00 0.0 M 0.0 M
8/12/2010 7:00 AM 0.00 0.0 M 0.0 M Delayed due to computer problems and incoming thunderstorms.
8/13/2010 7:00 AM 2.07 0.0 M 0.0 M +TSRA 0745-0820, 1.82 inches. -TSRA 1600-2000, 0.16 inch. -RADZ 0400 to present time, 0.09 inch.
8/14/2010 7:00 AM T 0.0 M 0.0 M Spotty drizzle until about mid morning.
8/15/2010 7:00 AM 0.00 0.0 M 0.0 M
8/16/2010 7:00 AM 0.18 0.0 M 0.0 M Light showers.
8/17/2010 7:00 AM 0.00 0.0 M 0.0 M
8/18/2010 6:30 AM 0.33 0.0 M 0.0 M Thunderstorm 3-4 AM otherwise light rain.
8/19/2010 7:00 AM 0.67 0.0 M 0.0 M Occasional rain until evening.
8/20/2010 7:00 AM 0.00 0.0 M 0.0 M
8/21/2010 7:00 AM 0.00 0.0 M 0.0 M
8/22/2010 7:00 AM T 0.0 M 0.0 M Light showers in the evening.
8/23/2010 7:00 AM 0.44 0.0 M 0.0 M Thunderstorm sometime between 3 and 4 PM.
8/24/2010 7:00 AM 0.18 0.0 M 0.0 M -SHRA overnight; brief SHRA around midnight.
8/25/2010 7:00 AM 0.00 0.0 M 0.0 M
8/26/2010 7:00 AM 0.00 0.0 M 0.0 M
8/27/2010 7:00 AM 0.00 0.0 M 0.0 M
8/28/2010 7:00 AM 0.00 0.0 M 0.0 M
8/29/2010 7:00 AM 0.00 0.0 M 0.0 M
8/30/2010 7:00 AM 0.00 0.0 M 0.0 M
8/31/2010 7:00 AM 0.00 0.0 M 0.0 M
9/1/2010 7:00 AM 0.00 0.0 M 0.0 M
9/2/2010 7:00 AM 0.00 0.0 M 0.0 M
9/3/2010 7:00 AM 0.00 0.0 M 0.0 M
9/4/2010 7:00 AM 0.00 0.0 M 0.0 M
9/5/2010 7:00 AM 0.00 0.0 M 0.0 M
9/6/2010 7:00 AM 0.00 0.0 M 0.0 M
9/7/2010 7:00 AM 0.00 0.0 M 0.0 M
9/8/2010 7:00 AM 0.00 0.0 M 0.0 M
9/9/2010 7:00 AM 0.00 0.0 M 0.0 M
9/10/2010 7:00 AM 0.00 0.0 M 0.0 M
9/11/2010 7:00 AM 0.00 0.0 M 0.0 M
9/12/2010 6:00 AM 0.34 0.0 M 0.0 M Light to moderate rain.
9/13/2010 7:00 AM 0.37 0.0 M 0.0 M Rain ended in the afternoon.
9/14/2010 7:00 AM 0.00 0.0 M 0.0 M
9/15/2010 7:00 AM 0.00 0.0 M 0.0 M
9/16/2010 7:00 AM 0.00 0.0 M 0.0 M
9/17/2010 7:00 AM 0.08 0.0 M 0.0 M Light showers last evening and early today.
9/18/2010 7:00 AM 0.00 0.0 M 0.0 M
9/19/2010 7:00 AM 0.00 0.0 M 0.0 M
9/20/2010 7:00 AM 0.00 0.0 M 0.0 M
9/21/2010 7:00 AM 0.00 0.0 M 0.0 M
9/22/2010 7:00 AM 0.00 0.0 M 0.0 M
9/23/2010 7:00 AM 0.00 0.0 M 0.0 M
9/24/2010 7:00 AM 0.00 0.0 M 0.0 M
9/25/2010 7:00 AM 0.00 0.0 M 0.0 M
9/26/2010 7:00 AM 0.00 0.0 M 0.0 M
9/30/2010 7:30 AM 1.76 0.0 M 0.0 M Steady rain.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/23/2009 11/26/2009 7:00 AM 4 1.26 0.0 M
5/25/2010 5/28/2010 7:00 AM 4 1.20 M M
9/27/2010 9/29/2010 7:00 AM 3 0.34 M M



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