Observation Date |
Observation Time |
Precipitation |
Snowfall |
Snowfall SWE |
Snow Depth |
Snow SWE |
Notes |
10/1/2010 |
10:46 AM |
1.90 |
M |
M |
M |
M |
+1.90" @10:46 AM from remnants of Nicole (APE).
|
10/4/2010 |
6:57 PM |
0.63 |
M |
M |
M |
M |
Rain began yesterday evening. 0.62" from overnight rain, recorded at 11:41 AM. +0.01" at 6:57 PM, though rain stopped for several hours. |
11/16/2010 |
4:18 PM |
0.45 |
M |
M |
M |
M |
0.37" at 1:38 PM +0.08" at 4:18. |
12/1/2010 |
11:59 PM |
0.89 |
M |
M |
M |
M |
Evening rain began after 4:20 PM yesterday. 0.49" at 9:05 AM +0.40" APE (recorded 3:27 PM 12/2/10, though rain probably ended by 2:00 PM 12/1/10). |
12/10/2010 |
11:59 PM |
0.00 |
0.0 |
0.00 |
M |
M |
Overcast in the morning. A few snowflakes in the air by 11:51 AM; fewer by 12:04 PM; only an occasional flake at 12:23. Snow stopped, with clouds gradually thinning by 12:45; no detectable snow on the ground. The sky remained overcast most of the afternoon. |
12/12/2010 |
8:19 PM |
0.90 |
M |
M |
M |
M |
0.9" rain since rains began last evening around 7:30 PM; recorded at 8:19 PM today. |
12/16/2010 |
8:07 PM |
0.12 |
1.1 |
0.12 |
1.1 |
0.12 |
0.8" snow on ground at 1:27 PM. 1.1" on ground by 8:07 (estimate 0.12" H2O); snow has stopped. |
1/11/2011 |
11:59 PM |
0.14 |
M |
0.14 |
M |
M |
First snowflakes around 1:20 PM. Then intermittent light snow (no accumulation until after 3:42). Precipitation recorded 1:33 PM 1/12/11: 0.14" H2O from melt of snow in catch bucket (estimate 2.0" snow); due to drifting following end of snowfall, could not directly measure the original snow depth. |
1/18/2011 |
11:59 PM |
0.43 |
M |
M |
M |
M |
0.43" total liquid from rain, sleet of 1/17/11-1/18/11 (recorded at 2:37 PM 1/19/11). |
3/7/2011 |
10:44 AM |
1.25 |
M |
M |
M |
M |
Bulk of rain probably occurred yesterday into night. 1.25" at 10:44 AM (APE) |
3/10/2011 |
9:36 PM |
1.93 |
M |
M |
M |
M |
Sprinkles began yesterday afternoon. 1.08" at 11:00 AM +0.17" at 12:33 PM +0.68" at 9:36. |
3/11/2011 |
11:09 AM |
0.04 |
M |
M |
M |
M |
Additional 0.04" from continuation of yesterday's rain, recorded at 11:09 AM (APE). |
3/16/2011 |
10:31 AM |
0.64 |
M |
M |
M |
M |
0.64" at 10:31 AM. |
3/21/2011 |
9:43 AM |
0.31 |
M |
M |
M |
M |
0.31" from early morning rain, recorded at 9:43 AM. Lower portion of 22 degree halo at 1:35 PM. |
3/23/2011 |
10:07 AM |
0.02 |
M |
M |
M |
M |
0.02" from overnight rain, recorded at 10:07 AM. |
3/24/2011 |
4:39 PM |
0.21 |
M |
M |
M |
M |
0.21" from overnight rain, recorded at 4:39 PM. |
3/31/2011 |
2:54 PM |
0.17 |
M |
M |
M |
M |
A bit of misty drizzle at 11:48 AM. Very light fog and 0.16" at 12:11 PM. Very light fog and +0.01" at 2:54 PM. |
4/1/2011 |
6:30 PM |
0.16 |
M |
M |
M |
M |
|
4/3/2011 |
9:57 AM |
0.12 |
M |
M |
M |
M |
0.12" from combined 4/2/11 and 4/3/11 rains. |
4/5/2011 |
12:52 PM |
0.48 |
M |
M |
M |
M |
|
4/8/2011 |
3:14 PM |
0.20 |
M |
M |
M |
M |
0.06" at 11:12 AM. Afternoon rain begins at 1:03 PM. +0.14" at 3:14, and still raining lightly. |
4/12/2011 |
3:43 PM |
0.25 |
M |
M |
M |
M |
Sprinkles, trace of rain at 9:18 AM; light rain by 9:30. 0.20" at 10:53 (and beginning to sprinkle again) +0.02" and 30% clear at 12:20. Brief light rain ca. 2:00-2:40; +0.01" at 3:43. |
4/13/2011 |
11:59 PM |
0.15 |
M |
M |
M |
M |
0.15" from yesterday afternoon and overnight rains. Recorded at10:01 AM 4/14/11. |
4/19/2011 |
4:40 PM |
0.04 |
M |
M |
M |
M |
Sprinkling at 10:21 AM; stops shortly thereafter. First soft thunder at 11:09. Sprinkles begin at 11:13. Light rain and occasional soft distant thunder follow. Thunder somewhat closer at 11:17. Fairly close, long roll of thunder, sprinkling at 11:21. Rain, thunder stopped, 0.04" in gauge at 11:31. Gradual drying; occasional weak sunshine comes and goes thereafter. Upper portion of 22 degree halo in thin cirrostratus at 4:40 PM.
|
4/23/2011 |
1:51 PM |
0.53 |
M |
M |
M |
M |
Intermittent rain began around midday yesterday, ending in midmorning today. 0.53" recorded at 1:51 PM. |
4/25/2011 |
3:30 PM |
0.04 |
M |
M |
M |
M |
0.04" rain from yesterday afternoon (4/24/11) and overnight. |
4/27/2011 |
12:59 PM |
0.00 |
0.0 |
M |
M |
M |
Rain gauge DRY at 9:55 AM on 4/28/11, so NO rain in evening of 4/27/11. |
4/28/2011 |
11:36 AM |
0.04 |
M |
M |
M |
M |
First sprinkles at 10:36 AM; light rain by 10:39. Wet; first soft thunder at 10:51. Light/moderate rain waxes and wanes; occasional soft rolling thunder. Rain stopped, overcast brightening a bit; 0.04" at 11:36. |
5/1/2011 |
12:59 PM |
0.03 |
M |
M |
M |
M |
0.03" recorded at 11:57 AM on 5/3/11 (includes 0.01" as estimate of evaporative loss). |
5/4/2011 |
1:29 PM |
0.62 |
M |
M |
M |
M |
0.62" from early morning, morning rains. More predicted for this afternoon. |
5/17/2011 |
4:33 PM |
0.14 |
M |
M |
M |
M |
Overnight and breakfast-time rains; 0.12" recorded at 11:15 AM. Dark clouds, moving rapidly from SE, produced additional 0.02" rain in a brief shower from 3:56 to 4:08 PM. |
5/18/2011 |
2:20 PM |
0.22 |
M |
M |
M |
M |
0.02" (probably from last evening's rains in our general area); beginning to sprinkle at 10:43 AM. Intermittent light rain during the morning; +0.09" with very light rain at 12:23 PM. +0.11" at 2:09; brief period of sunshine as tri-level clouds break up somewhat. Overcast again by 2:18. |
5/19/2011 |
3:44 PM |
0.34 |
M |
M |
M |
M |
Variable cloudiness, occasionally overcast, in morning and early afternoon. Rain begins at 3:03 PM, occasionally heavy, ends by 3:25. 0.34" recorded at 3:44; very dark clouds E-NE. |
5/20/2011 |
5:09 PM |
0.02 |
M |
M |
M |
M |
0.02" at 10:52 AM. Variable cloudiness through the day; no further rain. |
5/23/2011 |
1:20 PM |
0.02 |
M |
M |
M |
M |
0.02" from overnight rain, recorded at 1::20 PM. |
5/27/2011 |
11:59 PM |
0.01 |
M |
M |
M |
M |
0.01" from evening thunderstorms; recorded 1:21 PM Saturday 5/28/11. |
6/1/2011 |
11:59 PM |
0.00 |
0.0 |
M |
M |
M |
NO rain in gauge from late afternoon thunderstorms (Recorded at 11:37 AM, Thursday 6/2/11). |
6/29/2011 |
10:20 AM |
0.17 |
M |
M |
M |
M |
0.17" from last evening/overnight rains. |
7/5/2011 |
10:28 AM |
0.90 |
M |
M |
M |
M |
0.90" in gauge at 10:28 AM from 7/3/11 and 7/4/11 rains. Based on evaporation measured from a gauge at a nearby location (Station MD-PG-12 Bowie 2.8 WNW), an additional 0.07" or so should also be included. |
7/8/2011 |
12:59 PM |
0.00 |
0.0 |
M |
M |
M |
1.65" in afternoon, early evening rains. Recorded the next day at 12:34 PM (on Saturday, July 9, 2011). |
7/26/2011 |
12:34 PM |
0.14 |
M |
M |
M |
M |
0.14" (covers 7/25 and 7/26), most of which fell in afternoon of 7/25. |
8/2/2011 |
11:27 AM |
0.58 |
M |
M |
M |
M |
Light sprinkles at 5:05 PM yesterday (8/1/11). 0.58" probably mostly from the subsequent storm. Recorded at 11:27 AM today (8/2/11). |
8/4/2011 |
11:37 AM |
0.14 |
M |
M |
M |
M |
0.14" from rains yesterday afternoon to present (8/3/11 - 8/4/11). |
8/18/2011 |
6:36 PM |
0.12 |
M |
M |
M |
M |
Gradual darkening of clouds from W. A few large drops of rain at 4:24 PM.First thunder at 4:43, but no rain. Thunder and light wind at 4:50, 5:27, 6:00. Rain begins at 6:10. Lightning 2 seconds distant at 6:11. Rain over, 0.12"; dark rainfall between azimuth ~280 and ~310 degrees at 6:36. |
8/19/2011 |
7:33 PM |
0.22 |
M |
M |
M |
M |
0.03" from overnight rain, adding to rain from late yesterday afternoon, recorded at 9:37 AM. Grey clouds from W, sudden nearby thunder at 6:04 PM; much cloud-ground lightning (mostly to S-SE) and thunder in subsequent storm. Scud beginning to appear slightly to SE (moving from ~E) beneath dark clouds by 6:37. Moderate wind up quickly, but no rain yet, at 6:46; wind waxes and wanes subsequently. See wetting of road to S, advancing slowly toward me; rain starts here at 7:05; lightning less frequent, moving off. Moderate big-drop rain starts suddenly at 7:08, lasts until 7:10, and abates shortly thereafter. Rain stopped, increased scud continues from SE, at 7:20. Scud now evident even fairly far SE at 7:25. 0.19", light E wind, grey rain over much of distant SE, OC breaking locally at 7:33; temperature has dropped significantly since late afternoon. |
8/21/2011 |
3:59 PM |
0.82 |
M |
M |
M |
M |
First storm: light rain begins at1:16 PM. Occasional soft thunder. Rain stopped by 1:35. 0.03” rain; Cloud-Ground lightning to NE, at 1:56. Second storm: sprinkling, distant thunder at 2:56. Light/moderate gusty wind up; occasional soft thunder; getting quite dark at 3:06. High overcast from WSW, but rapidly forming scud is moving from ~E, at 3:09; scud/low clouds gradually expand to SE, but continue to come from ~E. Thunder nearer, more frequent by 3:16. Moderate rain by 3:20; fairly heavy by 3:21; heavy by 3:22; moderate, with lighter overcast by 3:23. Lightning 9 sec. high at 3:24, 5 sec. high at 3:25. Light/moderate rain, wind dropped to very light; occasional thunder by 3:26. Rain moderately heavy by 3:28:30, heavy 3:29 – 3:35, with fairly frequent relatively close lightning. Rain very heavy at 3:36, slackens to heavy at 3:37, moderate by 3:37:30, light by 3:38:30, very light by 3:40, and trails off thereafter. C-G stroke 10 sec SW at 3:41. Lightning and thunder off to SE; calm by 3:52. Clearing to SW, but dark and stormy E-SE; +0.79” at 3:59. |
9/3/2011 |
11:41 AM |
0.00 |
0.0 |
M |
M |
M |
Sprinkles of large drops, driving between Stations MD-PG-12 and MD-PG-47, from 11:41 to 11:50 AM. No measurable amount. |
9/5/2011 |
6:36 PM |
0.56 |
0.0 |
M |
M |
M |
No overnight rain (gauge dry at 8:40 AM). After 9 AM, sky gradually darkens; rain begins at 9:35, waxes and wanes, ends at 9:53 with 0.16", recorded at 10:05. Afternoon rain begins at 4:00, waxes and wanes as several cells pass through. Rain ends at 6:32. Additional 0.40" recorded at 6:36. |
9/6/2011 |
7:43 AM |
1.37 |
M |
M |
M |
M |
1.37" from overnight rain, recorded at 7:43 AM; beginning to sprinkle lightly, too. |
9/28/2011 |
6:28 PM |
0.15 |
M |
M |
M |
M |
Rain recorded at 3:36 PM; no rain observed thereafter. |
9/29/2011 |
10:12 AM |
1.15 |
M |
M |
M |
M |
1.15" recorded at 10:12 AM; most of this probably fell during thunderstorms after dinner last night. |