Station Overview Station Location
Station Number MD-HW-3 Latitude 39.2021
Station Name Elkridge 1.8 W Longitude -76.7843
County Howard Elevation (ft) 341



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 10 3.70 5.52 31 5.52 31 0.00 0 0 8 0 0.0 0 0
Nov 10 3.54 2.02 30 2.02 30 0.00 0 0 7 0 0.0 0 0
Dec 10 3.51 1.94 31 1.94 31 0.00 0 0 8 0 2.9 4 2
Jan 11 3.25 3.14 31 3.14 31 0.00 0 0 12 0 19.0 9 8
Feb 11 3.01 2.74 28 2.74 28 0.00 0 0 11 0 3.6 2 6
March 11 4.01 5.30 31 5.30 31 0.00 0 0 11 0 0.0 0 0
April 11 3.50 4.02 30 4.02 30 0.00 0 0 15 0 0.0 0 0
May 11 4.38 2.97 31 2.97 31 0.00 0 0 14 0 0.0 0 0
June 11 3.64 1.47 30 1.47 30 0.00 0 0 9 0 0.0 0 0
July 11 4.05 5.05 31 5.05 31 0.00 0 0 8 0 0.0 0 0
Aug 11 3.39 9.81 31 9.81 31 0.00 0 0 14 0 0.0 0 0
Sept 11 4.00 13.93 30 13.93 30 0.00 0 0 15 0 0.0 0 0
Water Year Totals: 43.98" 57.91" 365 days 57.91" 365 0.00" 0 days 0 132 days 0 days 25.5" 15 days 16 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
10/1/2010 2.67
10/2/2010 0.00
10/3/2010 0.00
10/4/2010 0.46
10/5/2010 0.30
10/6/2010 0.03
10/7/2010 0.00
10/8/2010 0.00
10/9/2010 0.00
10/10/2010 0.00
10/11/2010 0.00
10/12/2010 0.00
10/13/2010 0.00
10/14/2010 0.00
10/15/2010 0.93
10/16/2010 0.00
10/17/2010 0.00
10/18/2010 0.00
10/19/2010 0.49
10/20/2010 0.00
10/21/2010 0.00
10/22/2010 0.00
10/23/2010 0.00
10/24/2010 0.00
10/25/2010 0.00
10/26/2010 0.00
10/27/2010 0.40
10/28/2010 0.24
10/29/2010 0.00
10/30/2010 0.00
10/31/2010 0.00
11/1/2010 0.00
11/2/2010 0.00
11/3/2010 0.00
11/4/2010 0.47
11/5/2010 0.78
11/6/2010 0.00
11/7/2010 0.00
11/8/2010 0.00
11/9/2010 0.00
11/10/2010 0.00
11/11/2010 0.00
11/12/2010 0.00
11/13/2010 0.00
11/14/2010 0.00
11/15/2010 0.00
11/16/2010 0.15
11/17/2010 0.52
11/18/2010 0.00
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 0.00
11/22/2010 0.00
11/23/2010 0.00
11/24/2010 0.02
11/25/2010 0.06
11/26/2010 0.02
11/27/2010 0.00
11/28/2010 0.00
11/29/2010 0.00
11/30/2010 0.00
12/1/2010 0.28
12/2/2010 0.49
12/3/2010 0.00
12/4/2010 0.00
12/5/2010 0.00
12/6/2010 0.00
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 0.02
12/12/2010 0.50
12/13/2010 0.46
12/14/2010 0.00
12/15/2010 0.00
12/16/2010 0.00
12/17/2010 0.12
12/18/2010 0.00
12/19/2010 0.00
12/20/2010 0.00
12/21/2010 0.00
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 0.00
12/25/2010 0.00
12/26/2010 0.01
12/27/2010 0.06
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 0.00
12/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.00
1/2/2011 0.03
1/3/2011 0.06
1/4/2011 0.00
1/5/2011 0.00
1/6/2011 0.00
1/7/2011 0.01
1/8/2011 0.01
1/9/2011 0.01
1/10/2011 0.00
1/11/2011 0.00
1/12/2011 0.21
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 0.00
1/18/2011 0.52
1/19/2011 0.07
1/20/2011 0.00
1/21/2011 0.08
1/22/2011 0.00
1/23/2011 0.00
1/24/2011 0.00
1/25/2011 0.00
1/26/2011 0.32
1/27/2011 1.75
1/28/2011 0.00
1/29/2011 0.07
1/30/2011 0.00
1/31/2011 0.00
2/1/2011 0.05
2/2/2011 0.82
2/3/2011 0.04
2/4/2011 0.00
2/5/2011 0.05
2/6/2011 0.21
2/7/2011 0.00
2/8/2011 0.01
2/9/2011 0.00
2/10/2011 0.01
2/11/2011 0.00
2/12/2011 0.00
2/13/2011 0.00
2/14/2011 0.00
2/15/2011 0.00
2/16/2011 0.00
2/17/2011 0.00
2/18/2011 0.00
2/19/2011 0.00
2/20/2011 0.00
2/21/2011 0.00
2/22/2011 0.64
2/23/2011 0.00
2/24/2011 0.00
2/25/2011 0.40
2/26/2011 0.28
2/27/2011 0.00
2/28/2011 0.23
3/1/2011 0.32
3/2/2011 0.00
3/3/2011 0.00
3/4/2011 0.00
3/5/2011 0.00
3/6/2011 0.00
3/7/2011 1.00
3/8/2011 0.00
3/9/2011 0.00
3/10/2011 0.61
3/11/2011 1.90
3/12/2011 0.00
3/13/2011 0.00
3/14/2011 0.00
3/15/2011 0.00
3/16/2011 0.58
3/17/2011 0.00
3/18/2011 0.00
3/19/2011 0.00
3/20/2011 0.00
3/21/2011 0.07
3/22/2011 0.16
3/23/2011 0.08
3/24/2011 0.27
3/25/2011 0.04
3/26/2011 0.00
3/27/2011 0.00
3/28/2011 0.00
3/29/2011 0.00
3/30/2011 0.00
3/31/2011 0.27
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.15
4/2/2011 0.00
4/3/2011 0.07
4/4/2011 0.01
4/5/2011 0.22
4/6/2011 0.00
4/7/2011 0.00
4/8/2011 0.09
4/9/2011 0.33
4/10/2011 0.00
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.57
4/14/2011 0.11
4/15/2011 0.00
4/16/2011 0.00
4/17/2011 0.90
4/18/2011 0.00
4/19/2011 0.00
4/20/2011 0.15
4/21/2011 0.00
4/22/2011 0.00
4/23/2011 0.34
4/24/2011 0.11
4/25/2011 0.82
4/26/2011 0.00
4/27/2011 0.00
4/28/2011 0.01
4/29/2011 0.14
4/30/2011 0.00
5/1/2011 0.00
5/2/2011 0.09
5/3/2011 0.00
5/4/2011 0.36
5/5/2011 0.19
5/6/2011 0.00
5/7/2011 0.04
5/8/2011 0.00
5/9/2011 0.00
5/10/2011 0.00
5/11/2011 0.00
5/12/2011 0.00
5/13/2011 0.00
5/14/2011 0.00
5/15/2011 0.59
5/16/2011 0.09
5/17/2011 0.20
5/18/2011 0.64
5/19/2011 0.41
5/20/2011 0.22
5/21/2011 0.00
5/22/2011 0.00
5/23/2011 0.03
5/24/2011 0.02
5/25/2011 0.02
5/26/2011 0.00
5/27/2011 0.00
5/28/2011 0.07
5/29/2011 0.00
5/30/2011 0.00
5/31/2011 0.00
6/1/2011 0.00
6/2/2011 0.00
6/3/2011 0.00
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.00
6/10/2011 0.81
6/11/2011 0.11
6/12/2011 0.00
6/13/2011 0.06
6/14/2011 0.00
6/15/2011 0.00
6/16/2011 0.00
6/17/2011 0.16
6/18/2011 0.08
6/19/2011 0.00
6/20/2011 0.10
6/21/2011 0.03
6/22/2011 0.06
6/23/2011 0.00
6/24/2011 0.00
6/25/2011 0.00
6/26/2011 0.00
6/27/2011 0.00
6/28/2011 0.00
6/29/2011 0.06
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.00
7/2/2011 0.00
7/3/2011 0.39
7/4/2011 0.25
7/5/2011 0.00
7/6/2011 0.00
7/7/2011 0.00
7/8/2011 0.98
7/9/2011 0.48
7/10/2011 0.00
7/11/2011 0.00
7/12/2011 0.05
7/13/2011 0.00
7/14/2011 0.43
7/15/2011 0.00
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.93
7/21/2011 0.00
7/22/2011 0.00
7/23/2011 0.00
7/24/2011 0.00
7/25/2011 0.00
7/26/2011 1.54
7/27/2011 0.00
7/28/2011 0.00
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 0.00
8/2/2011 0.08
8/3/2011 0.00
8/4/2011 0.41
8/5/2011 0.00
8/6/2011 0.00
8/7/2011 0.70
8/8/2011 0.15
8/9/2011 0.00
8/10/2011 0.08
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 0.00
8/14/2011 0.28
8/15/2011 1.10
8/16/2011 0.06
8/17/2011 0.00
8/18/2011 0.00
8/19/2011 0.04
8/20/2011 0.00
8/21/2011 0.31
8/22/2011 1.63
8/23/2011 0.00
8/24/2011 0.00
8/25/2011 0.00
8/26/2011 0.32
8/27/2011 0.00
8/28/2011 4.61
8/29/2011 0.04
8/30/2011 0.00
8/31/2011 0.00
9/1/2011 0.00
9/2/2011 0.09
9/3/2011 0.00
9/4/2011 0.00
9/5/2011 0.00
9/6/2011 1.30
9/7/2011 1.05
9/8/2011 6.78
9/9/2011 1.58
9/10/2011 0.05
9/11/2011 0.00
9/12/2011 1.24
9/13/2011 0.00
9/14/2011 0.00
9/15/2011 0.00
9/16/2011 0.03
9/17/2011 0.00
9/18/2011 0.00
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 0.08
9/22/2011 0.16
9/23/2011 0.05
9/24/2011 0.93
9/25/2011 0.00
9/26/2011 0.04
9/27/2011 0.00
9/28/2011 0.03
9/29/2011 0.52
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 5:30 AM 2.67 M M M M Storm total= 4.68
10/2/2010 7:00 AM 0.00 0.0 M M M
10/3/2010 7:00 AM 0.00 0.0 M M M
10/4/2010 7:20 AM 0.46 M M M M
10/5/2010 7:00 AM 0.30 M M M M
10/6/2010 7:00 AM 0.03 M M M M
10/7/2010 7:00 AM 0.00 0.0 M M M
10/8/2010 7:00 AM 0.00 0.0 M M M
10/9/2010 7:00 AM 0.00 0.0 M M M
10/10/2010 7:00 AM 0.00 0.0 M M M
10/11/2010 7:00 AM 0.00 0.0 M M M
10/12/2010 7:00 AM 0.00 0.0 M M M
10/13/2010 7:00 AM 0.00 0.0 M M M
10/14/2010 7:00 AM 0.00 0.0 M M M
10/15/2010 7:00 AM 0.93 M M M M
10/16/2010 7:00 AM 0.00 0.0 M M M
10/17/2010 7:00 AM 0.00 0.0 M M M
10/18/2010 7:00 AM 0.00 0.0 M M M
10/19/2010 7:00 AM 0.49 M M M M
10/20/2010 7:00 AM 0.00 0.0 M M M
10/21/2010 7:00 AM 0.00 0.0 M M M
10/22/2010 7:00 AM 0.00 0.0 M M M
10/23/2010 7:00 AM 0.00 0.0 M M M
10/24/2010 7:00 AM 0.00 0.0 M M M
10/25/2010 7:00 AM 0.00 0.0 M M M
10/26/2010 7:00 AM 0.00 0.0 M M M
10/27/2010 7:00 AM 0.40 M M M M
10/28/2010 7:00 AM 0.24 M M M M
10/29/2010 7:00 AM 0.00 0.0 M M M
10/30/2010 7:00 AM 0.00 0.0 M M M
10/31/2010 7:00 AM 0.00 0.0 M M M
11/1/2010 7:00 AM 0.00 0.0 M M M
11/2/2010 7:00 AM 0.00 0.0 M M M
11/3/2010 7:00 AM 0.00 0.0 M M M
11/4/2010 7:00 AM 0.47 M M M M
11/5/2010 7:00 AM 0.78 M M M M
11/6/2010 7:00 AM 0.00 0.0 M M M
11/7/2010 7:00 AM 0.00 0.0 M M M
11/8/2010 7:00 AM 0.00 0.0 M M M
11/9/2010 7:00 AM 0.00 0.0 M M M
11/10/2010 7:00 AM 0.00 0.0 M M M
11/11/2010 7:00 AM 0.00 0.0 M M M
11/12/2010 7:00 AM 0.00 0.0 M M M
11/13/2010 7:00 AM 0.00 0.0 M M M
11/14/2010 7:00 AM 0.00 0.0 M M M
11/15/2010 7:00 AM 0.00 0.0 M M M
11/16/2010 7:00 AM 0.15 M M M M
11/17/2010 7:00 AM 0.52 M M M M
11/18/2010 7:00 AM 0.00 0.0 M M M
11/19/2010 7:00 AM 0.00 0.0 M M M
11/20/2010 7:00 AM 0.00 0.0 M M M
11/21/2010 7:00 AM 0.00 0.0 M M M
11/22/2010 7:00 AM 0.00 0.0 M M M
11/23/2010 7:00 AM 0.00 0.0 M M M
11/24/2010 7:00 AM 0.02 M M M M
11/25/2010 7:00 AM 0.06 M M M M
11/26/2010 7:00 AM 0.02 M M M M
11/27/2010 7:00 AM 0.00 0.0 M M M
11/28/2010 7:00 AM 0.00 0.0 M M M
11/29/2010 7:00 AM 0.00 0.0 M M M
11/30/2010 7:00 AM 0.00 0.0 M M M
12/1/2010 7:00 AM 0.28 M M M M
12/2/2010 7:00 AM 0.49 M M M M
12/3/2010 7:00 AM 0.00 0.0 M M M
12/4/2010 7:00 AM 0.00 0.0 M M M
12/5/2010 7:00 AM 0.00 0.0 M M M
12/6/2010 7:00 AM 0.00 0.0 M M M
12/7/2010 7:00 AM 0.00 0.0 M M M
12/8/2010 7:00 AM 0.00 0.0 M M M
12/9/2010 7:00 AM 0.00 0.0 M M M
12/10/2010 7:00 AM 0.00 0.0 M M M
12/11/2010 7:00 AM 0.02 0.2 M M M Burst of light to nearly moderate snow arround midday.
12/12/2010 7:00 AM 0.50 M M M M
12/13/2010 7:00 AM 0.46 T M T M
12/14/2010 7:00 AM 0.00 0.0 M M M
12/15/2010 7:00 AM 0.00 0.0 M M M
12/16/2010 7:00 AM 0.00 0.0 M M M
12/17/2010 7:00 AM 0.12 1.8 M 1.8 M Light snowfall from late morning through late afternoon (12/16), with occasionally moderate snow around midday though early afternoon. Very cold temperatures around 20 degrees for much of the event.
12/18/2010 7:00 AM 0.00 0.0 M M M
12/19/2010 7:00 AM 0.00 0.0 M M M
12/20/2010 7:00 AM 0.00 0.0 M M M
12/21/2010 7:00 AM 0.00 0.0 M M M
12/22/2010 7:00 AM 0.00 0.0 M M M
12/23/2010 7:00 AM 0.00 0.0 M M M
12/24/2010 7:00 AM 0.00 0.0 M M M
12/25/2010 7:00 AM 0.00 0.0 M M M
12/26/2010 7:00 AM 0.01 0.1 M M M
12/27/2010 6:00 AM 0.06 0.8 M 0.8 M
12/28/2010 7:00 AM 0.00 0.0 M M M
12/29/2010 7:00 AM 0.00 0.0 M M M
12/30/2010 7:00 AM 0.00 0.0 M M M
12/31/2010 7:00 AM 0.00 0.0 M M M
1/1/2011 7:00 AM 0.00 0.0 M M M
1/2/2011 7:00 AM 0.03 M M M M
1/3/2011 7:00 AM 0.06 M M M M
1/4/2011 7:00 AM 0.00 0.0 M M M
1/5/2011 7:00 AM 0.00 0.0 M M M
1/6/2011 7:00 AM 0.00 0.0 M M M
1/7/2011 7:00 AM 0.01 0.2 M 0.2 M
1/8/2011 7:00 AM 0.01 0.2 M 0.2 M
1/9/2011 7:00 AM 0.01 0.1 M T M
1/10/2011 7:00 AM 0.00 0.0 M M M
1/11/2011 7:00 AM 0.00 0.0 M M M
1/12/2011 7:00 AM 0.21 2.3 M 2.3 M Intermittent light snowfall during the mid to late afternoon changed to a mix of snow grains and freezing drizzle during the early evening. A few ice pellets mixed in occasionally. All of this then turned back to a light to moderate snow through the remainder of the evening. Precipitation ended around 04Z.
1/13/2011 7:00 AM 0.00 0.0 M M M
1/14/2011 7:00 AM 0.00 0.0 M M M
1/15/2011 7:00 AM 0.00 0.0 M M M
1/16/2011 7:00 AM 0.00 0.0 M M M
1/17/2011 7:00 AM 0.00 0.0 M M M
1/18/2011 7:00 AM 0.52 0.5 M 0.5 M 1/4 inch ice accumulation from freezing rain on exposed surfaces...on top of the snow/sleet accumulation that occurred.
1/19/2011 7:00 AM 0.07 M M M M
1/20/2011 7:00 AM 0.00 0.0 M M M
1/21/2011 7:00 AM 0.08 0.6 M 0.6 M
1/22/2011 7:00 AM 0.00 0.0 M M M
1/23/2011 7:00 AM 0.00 0.0 M M M
1/24/2011 7:00 AM 0.00 0.0 M M M
1/25/2011 7:00 AM 0.00 0.0 M M M
1/26/2011 7:00 AM 0.32 3.0 M 3.0 M Light to moderate snowfall between 4AM and 7AM, occasionally mixing with sleet and freezing rain between 5:30 and 7AM.
1/27/2011 7:00 AM 1.75 11.5 M 9.0 M Snow early Wednesday mixed with a period of sleet, freezing rain and then ultimately a cold rain by mid-morning. Mostly rain by midday and until about 4PM. Thunderstorm with rain and sleet began at 4PM, and began mixing with snow by 4:30PM. Thunderstorm ended. Complete changeover to snow by 5PM, which quickly became very heavy. Visibility down to 1/8 to 1/4 mile by 6PM and last into the mid-evening hours with help of gusty NNE winds. Approximately 8 inches of snow fell in a 3 hour period. Snow ended around 11PM Wednesday evening. Compacting of snow occurred overnight while gone at work. Snow depth currently 9 inches which is very heavy and crusted with ice given temp drop below freezing during and especially after the event. Storm total (two-day) for event: 14.5 inches of snow; water equivalent= 2.07 inches
1/28/2011 7:00 AM 0.00 0.0 M M M
1/29/2011 7:00 AM 0.07 0.6 M 9.0 M
1/30/2011 7:00 AM 0.00 0.0 M M M
1/31/2011 7:00 AM 0.00 0.0 M M M
2/1/2011 7:00 AM 0.05 T M 6.5 M Light icing from freezing drizzle overnight/early morning following a period of very light snow earlier in the evening.
2/2/2011 7:00 AM 0.82 0.0 M 6.0 M
2/3/2011 7:00 AM 0.04 0.0 M 4.0 M
2/4/2011 7:00 AM 0.00 0.0 M 4.0 M
2/5/2011 7:00 AM 0.05 M M M M
2/6/2011 7:00 AM 0.21 M M M M
2/7/2011 7:00 AM 0.00 0.0 M M M
2/8/2011 7:00 AM 0.01 M M M M
2/9/2011 7:00 AM 0.00 0.0 M M M
2/10/2011 7:00 AM 0.01 0.1 M 2.0 M
2/11/2011 7:00 AM 0.00 0.0 M M M
2/12/2011 7:00 AM 0.00 0.0 M M M
2/13/2011 7:00 AM 0.00 0.0 M M M
2/14/2011 7:00 AM 0.00 0.0 M M M
2/15/2011 7:00 AM 0.00 0.0 M M M
2/16/2011 7:00 AM 0.00 0.0 M M M
2/17/2011 7:00 AM 0.00 0.0 M M M
2/18/2011 7:00 AM 0.00 0.0 M M M
2/19/2011 7:00 AM 0.00 0.0 M M M
2/20/2011 7:00 AM 0.00 0.0 M M M
2/21/2011 7:00 AM 0.00 0.0 M M M
2/22/2011 6:00 AM 0.64 3.5 M 3.5 M
2/23/2011 7:00 AM 0.00 0.0 M M M
2/24/2011 7:00 AM 0.00 0.0 M M M
2/25/2011 7:00 AM 0.40 M M M M
2/26/2011 7:00 AM 0.28 M M M M
2/27/2011 7:00 AM 0.00 0.0 M M M
2/28/2011 7:00 AM 0.23 M M M M
3/1/2011 7:00 AM 0.32 M M M M
3/2/2011 7:00 AM 0.00 0.0 M M M
3/3/2011 7:00 AM 0.00 0.0 M M M
3/4/2011 7:00 AM 0.00 0.0 M M M
3/5/2011 7:00 AM 0.00 0.0 M M M
3/6/2011 7:00 AM 0.00 0.0 M M M
3/7/2011 7:00 AM 1.00 T M T M
3/8/2011 7:00 AM 0.00 0.0 M M M
3/9/2011 7:00 AM 0.00 0.0 M M M
3/10/2011 7:00 AM 0.61 M M M M
3/11/2011 7:00 AM 1.90 M M M M
3/12/2011 7:00 AM 0.00 0.0 M M M
3/13/2011 7:00 AM 0.00 0.0 M M M
3/14/2011 7:00 AM 0.00 0.0 M M M
3/15/2011 7:00 AM 0.00 0.0 M M M
3/16/2011 7:00 AM 0.58 M M M M
3/17/2011 7:00 AM 0.00 0.0 M M M
3/18/2011 7:00 AM 0.00 0.0 M M M
3/19/2011 7:00 AM 0.00 0.0 M M M
3/20/2011 7:00 AM 0.00 0.0 M M M
3/21/2011 7:00 AM 0.07 M M M M
3/22/2011 7:00 AM 0.16 M M M M
3/23/2011 7:00 AM 0.08 M M M M
3/24/2011 7:00 AM 0.27 M M M M
3/25/2011 7:00 AM 0.04 M M M M
3/26/2011 7:00 AM 0.00 0.0 M M M
3/27/2011 7:00 AM 0.00 0.0 M M M
3/28/2011 7:00 AM 0.00 0.0 M M M
3/29/2011 7:00 AM 0.00 0.0 M M M
3/30/2011 7:00 AM 0.00 0.0 M M M
3/31/2011 7:00 AM 0.27 M M M M
4/1/2011 7:00 AM 0.15 M M M M
4/2/2011 7:00 AM 0.00 0.0 M M M
4/3/2011 7:00 AM 0.07 M M M M
4/4/2011 7:00 AM 0.01 M M M M
4/5/2011 7:00 AM 0.22 M M M M
4/6/2011 7:00 AM 0.00 0.0 M M M
4/7/2011 7:00 AM 0.00 0.0 M M M
4/8/2011 7:00 AM 0.09 M M M M
4/9/2011 7:00 AM 0.33 M M M M
4/10/2011 7:00 AM 0.00 0.0 M M M
4/11/2011 7:00 AM 0.00 0.0 M M M
4/12/2011 7:00 AM 0.00 0.0 M M M
4/13/2011 7:00 AM 0.57 M M M M
4/14/2011 7:00 AM 0.11 M M M M
4/15/2011 7:00 AM 0.00 0.0 M M M
4/16/2011 7:00 AM 0.00 0.0 M M M
4/17/2011 7:00 AM 0.90 M M M M
4/18/2011 7:00 AM 0.00 0.0 M M M
4/19/2011 7:00 AM 0.00 0.0 M M M
4/20/2011 7:00 AM 0.15 M M M M
4/21/2011 7:00 AM 0.00 0.0 M M M
4/22/2011 7:00 AM 0.00 0.0 M M M
4/23/2011 7:00 AM 0.34 M M M M
4/24/2011 7:00 AM 0.11 M M M M
4/25/2011 7:00 AM 0.82 M M M M
4/26/2011 7:00 AM 0.00 0.0 M M M
4/27/2011 7:00 AM 0.00 0.0 M M M
4/28/2011 7:00 AM 0.01 M M M M
4/29/2011 7:00 AM 0.14 M M M M
4/30/2011 7:00 AM 0.00 0.0 M M M
5/1/2011 7:00 AM 0.00 0.0 M M M
5/2/2011 7:00 AM 0.09 M M M M
5/3/2011 7:00 AM 0.00 0.0 M M M
5/4/2011 7:00 AM 0.36 M M M M
5/5/2011 7:00 AM 0.19 M M M M
5/6/2011 7:00 AM 0.00 0.0 M M M
5/7/2011 7:00 AM 0.04 M M M M
5/8/2011 7:00 AM 0.00 0.0 M M M
5/9/2011 7:00 AM 0.00 0.0 M M M
5/10/2011 7:00 AM 0.00 0.0 M M M
5/11/2011 7:00 AM 0.00 0.0 M M M
5/12/2011 7:00 AM 0.00 0.0 M M M
5/13/2011 7:00 AM 0.00 0.0 M M M
5/14/2011 7:00 AM 0.00 0.0 M M M
5/15/2011 7:00 AM 0.59 M M M M
5/16/2011 7:00 AM 0.09 M M M M
5/17/2011 7:00 AM 0.20 M M M M
5/18/2011 7:00 AM 0.64 M M M M
5/19/2011 7:00 AM 0.41 M M M M
5/20/2011 7:00 AM 0.22 M M M M
5/21/2011 7:00 AM 0.00 0.0 M M M
5/22/2011 7:00 AM 0.00 0.0 M M M
5/23/2011 5:30 AM 0.03 M M M M
5/24/2011 7:00 AM 0.02 M M M M
5/25/2011 7:00 AM 0.02 M M M M
5/26/2011 7:00 AM 0.00 0.0 M M M
5/27/2011 7:00 AM 0.00 0.0 M M M
5/28/2011 7:00 AM 0.07 M M M M
5/29/2011 7:00 AM 0.00 0.0 M M M
5/30/2011 7:00 AM 0.00 0.0 M M M
5/31/2011 7:00 AM 0.00 0.0 M M M
6/1/2011 7:00 AM 0.00 0.0 M M M
6/2/2011 7:00 AM 0.00 0.0 M M M
6/3/2011 7:00 AM 0.00 0.0 M M M
6/4/2011 7:00 AM 0.00 0.0 M M M
6/5/2011 7:00 AM 0.00 0.0 M M M
6/6/2011 7:00 AM 0.00 0.0 M M M
6/7/2011 7:00 AM 0.00 0.0 M M M
6/8/2011 7:00 AM 0.00 0.0 M M M
6/9/2011 7:00 AM 0.00 0.0 M M M
6/10/2011 7:00 AM 0.81 M M M M
6/11/2011 7:00 AM 0.11 M M M M
6/12/2011 7:00 AM 0.00 0.0 M M M
6/13/2011 7:00 AM 0.06 M M M M
6/14/2011 7:00 AM 0.00 0.0 M M M
6/15/2011 7:00 AM 0.00 0.0 M M M
6/16/2011 7:00 AM 0.00 0.0 M M M
6/17/2011 7:00 AM 0.16 M M M M
6/18/2011 7:00 AM 0.08 M M M M
6/19/2011 7:00 AM 0.00 0.0 M M M
6/20/2011 7:00 AM 0.10 M M M M
6/21/2011 7:00 AM 0.03 M M M M
6/22/2011 7:00 AM 0.06 M M M M
6/23/2011 7:00 AM 0.00 0.0 M M M
6/24/2011 7:00 AM 0.00 0.0 M M M
6/25/2011 7:00 AM 0.00 0.0 M M M
6/26/2011 7:00 AM 0.00 0.0 M M M
6/27/2011 7:00 AM 0.00 0.0 M M M
6/28/2011 7:00 AM 0.00 0.0 M M M
6/29/2011 7:00 AM 0.06 M M M M
6/30/2011 7:00 AM 0.00 0.0 M M M
7/1/2011 7:00 AM 0.00 0.0 M M M
7/2/2011 7:00 AM 0.00 0.0 M M M
7/3/2011 7:00 AM 0.39 M M M M
7/4/2011 7:00 AM 0.25 M M M M
7/5/2011 7:00 AM 0.00 0.0 M M M
7/6/2011 7:00 AM 0.00 0.0 M M M
7/7/2011 7:00 AM 0.00 0.0 M M M
7/8/2011 7:00 AM 0.98 M M M M
7/9/2011 7:00 AM 0.48 M M M M
7/10/2011 7:00 AM 0.00 0.0 M M M
7/11/2011 7:00 AM 0.00 0.0 M M M
7/12/2011 7:00 AM 0.05 M M M M
7/13/2011 7:00 AM 0.00 0.0 M M M
7/14/2011 7:00 AM 0.43 M M M M
7/15/2011 7:00 AM 0.00 0.0 M M M
7/16/2011 7:00 AM 0.00 0.0 M M M
7/17/2011 7:00 AM 0.00 0.0 M M M
7/18/2011 7:00 AM 0.00 0.0 M M M
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.93 M M M M
7/21/2011 7:00 AM 0.00 0.0 M M M
7/22/2011 7:00 AM 0.00 0.0 M M M
7/23/2011 7:00 AM 0.00 0.0 M M M
7/24/2011 7:00 AM 0.00 0.0 M M M
7/25/2011 7:00 AM 0.00 0.0 M M M
7/26/2011 7:00 AM 1.54 M M M M
7/27/2011 7:00 AM 0.00 0.0 M M M
7/28/2011 7:00 AM 0.00 0.0 M M M
7/29/2011 7:00 AM 0.00 0.0 M M M
7/30/2011 7:00 AM 0.00 0.0 M M M
7/31/2011 7:00 AM 0.00 0.0 M M M
8/1/2011 7:00 AM 0.00 0.0 M M M
8/2/2011 7:00 AM 0.08 M M M M
8/3/2011 7:00 AM 0.00 0.0 M M M
8/4/2011 7:00 AM 0.41 M M M M
8/5/2011 7:00 AM 0.00 0.0 M M M
8/6/2011 7:00 AM 0.00 0.0 M M M
8/7/2011 7:00 AM 0.70 M M M M
8/8/2011 5:30 AM 0.15 M M M M
8/9/2011 7:00 AM 0.00 0.0 M M M
8/10/2011 5:30 AM 0.08 M M M M
8/11/2011 7:00 AM 0.00 0.0 M M M
8/12/2011 7:00 AM 0.00 0.0 M M M
8/13/2011 7:00 AM 0.00 0.0 M M M
8/14/2011 7:00 AM 0.28 M M M M
8/15/2011 7:00 AM 1.10 M M M M
8/16/2011 7:00 AM 0.06 M M M M
8/17/2011 7:00 AM 0.00 0.0 M M M
8/18/2011 7:00 AM 0.00 0.0 M M M
8/19/2011 7:00 AM 0.04 M M M M
8/20/2011 7:00 AM 0.00 0.0 M M M
8/21/2011 7:00 AM 0.31 M M M M
8/22/2011 3:30 AM 1.63 M M M M
8/23/2011 7:00 AM 0.00 0.0 M M M
8/24/2011 7:00 AM 0.00 0.0 M M M
8/25/2011 7:00 AM 0.00 0.0 M M M
8/26/2011 7:00 AM 0.32 M M M M
8/27/2011 7:00 AM 0.00 0.0 M M M
8/28/2011 7:00 AM 4.61 M M M M
8/29/2011 5:30 AM 0.04 M M M M
8/30/2011 7:00 AM 0.00 0.0 M M M
8/31/2011 7:00 AM 0.00 0.0 M M M
9/1/2011 7:00 AM 0.00 0.0 M M M
9/2/2011 7:00 AM 0.09 M M M M
9/3/2011 7:00 AM 0.00 0.0 M M M
9/4/2011 7:00 AM 0.00 0.0 M M M
9/5/2011 7:00 AM 0.00 0.0 M M M
9/6/2011 7:00 AM 1.30 M M M M
9/7/2011 7:00 AM 1.05 M M M M
9/8/2011 5:00 AM 6.78 M M M M Wow! Multiple bands of quasi-linear convection with very heavy training rainfall inundated Ellicott City Wednesday and Wednesday night. Severe flash flooding noted.
9/9/2011 5:00 AM 1.58 M M M M
9/10/2011 7:00 AM 0.05 M M M M
9/11/2011 7:00 AM 0.00 0.0 M M M
9/12/2011 5:30 AM 1.24 M M M M
9/13/2011 7:00 AM 0.00 0.0 M M M
9/14/2011 7:00 AM 0.00 0.0 M M M
9/15/2011 7:00 AM 0.00 0.0 M M M
9/16/2011 7:00 AM 0.03 0.0 M M M
9/17/2011 7:00 AM 0.00 0.0 M M M
9/18/2011 7:00 AM 0.00 0.0 M M M
9/19/2011 7:00 AM 0.00 0.0 M M M
9/20/2011 7:00 AM 0.00 0.0 M M M
9/21/2011 7:00 AM 0.08 M M M M
9/22/2011 7:00 AM 0.16 M M M M
9/23/2011 7:00 AM 0.05 M M M M
9/24/2011 7:00 AM 0.93 M M M M
9/25/2011 7:00 AM 0.00 0.0 M M M
9/26/2011 7:00 AM 0.04 M M M M
9/27/2011 7:00 AM 0.00 0.0 M M M
9/28/2011 7:00 AM 0.03 M M M M
9/29/2011 7:00 AM 0.52 M M M M
9/30/2011 7:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



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