Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >
April 27-28, 2011 Severe Weather
(19 Tornadoes in the WFO Sterling CWA)
Storm Survey Results: - Click on the location in the table for more information!
Location |
Start/ End Time |
Event Type | Path Length | Path Width |
Stafford/Prince William Counties Southeast of Triangle |
Apr. 27 6:15 pm- 6:22 pm |
EF-0 Tornado 65 mph |
2.0 mi | Unknown |
Prince George's County 1 SE Friendly |
Apr. 27 7:06 pm- 7:07 pm |
EF-0 Tornado 70 mph |
0.4 mi | 75 yds |
Prince George's County 1 N Clinton |
Apr. 27 7:12 pm- 7:13 pm |
EF-0 Tornado 70 mph |
0.2 mi | 50 yds |
Prince George's County Andrews AFB and Camp Springs |
Apr. 27 7:16 pm- 7:17 pm |
EF-0 Tornado 70 mph |
0.8 mi | 100 yds |
Prince William County Nokesville and Bristow |
Apr. 27 10:46 pm- 11:01 pm |
EF-1 Tornado 90 mph |
5.8 mi | 125 yds |
Fairfax County Reston |
Apr. 27 11:25 pm- 11:28 pm |
EF-0 Tornado 80 mph |
1.2 mi | 75 yds |
Allegany County 2N Town Creek |
Apr. 28 1:27 am- 1:28 am |
EF-0 Tornado 80 mph |
0.5 mi | 75 yds |
Allegany County 3NW Green Ridge |
Apr. 28 1:35 am- 1:35 am |
EF-0 Tornado 80 mph |
0.1 mi | 75 yds |
Rockingham/Shenandoah Counties Fulks Run to St. Luke |
Apr. 28 2:12 am- 2:41 am |
EF-2 Tornado 130 mph |
33.2 mi | 400 yds |
Augusta Churchville |
Apr. 28 2:17 am- 2:23 am |
EF-1 Tornado 100 mph |
4 mi | 150 yds |
Rockingham Linville |
Apr. 28 3:01 am- 3:02 am |
EF-1 Tornado 90 mph |
0.9 mi | 50 yds |
Shenandoah/Frederick Counties NE of Strasburg to just N of Middletown |
Apr. 28 3:45 am- 3:49 am |
EF-0 Tornado 70 mph |
4.3 mi | 175 yds |
Rockingham County Keezletown |
Apr. 28 3:55 am- 3:58 am |
EF-1 Tornado 90 mph |
2.7 mi | 150 yds |
Montgomery County North of Poolesville |
Apr. 28 6:45 am- 6:47 am |
EF-0 Tornado 65 mph |
0.8 mi | 50 yds |
Carroll County Westminster |
Apr. 28 7:37 am- 7:38 am |
EF-0 Tornado 65 mph |
0.6 mi | 50 yds |
Baltimore County 2E Hampstead |
Apr. 28 8:09 am- 8:11 am |
EF-0 Tornado 65 mph |
1.1 mi | 50 yds |
Baltimore County 2 WNW Hereford |
Apr. 28 9:54 am- 9:54 am |
EF-0 Tornado 70 mph |
0.1 mi | 75 yds |
St. Marys County Breton Bay |
Apr. 28 11:25 am- 11:29 am |
EF-1 Tornado 90 mph |
3.3 mi | 50 yds |
Calvert Lusby |
Apr. 28 11:41 am- 11:43 am |
EF-0 Tornado 70 mph |
1.8 mi | 50 yds |