
A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. 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 | 
![[track map]](/images/lwx/events/2011042728/2011042728_trackmap_sm.jpg)