From the ABC 7 Weather team

Severe thunderstorms in the D.C. area Saturday

September 8, 2012 - 01:45 PM
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Hundreds of thousands of people are without power in parts of the District, Maryland and Virginia as a line of powerful storms pushed across the region Saturday afternoon.

Greatest Storm Risks today

A Severe Thunderstorm Watch is in effect until 10pm.

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5:22pm:  Severe weather has ended across the viewing area and now the cooler air settles in.  A few showers will still be possible early this evening, but the severe threat is over for the night and the next 7 days.  

4:49pm: Storms have moved across the Chesapeake Bay onto the Eastern Shore but some still remain through Southern Maryland. Heads up to residents in Charles, Calvert and St. Mary's Counties over the next 45 minutes.

4:34pm:  Tornado warning canceled for for Anne Arundel county.  Main threat is the torrential rain and damaging wind gusts up to 70 mph.  Hold off travel towards the Bay Bridge.  Much quieter in D.C. with temperatures now in the 60s.

Live Super Doppler

4:08pm:  New TORNADO WARNING until 4:30pm for Anne Arundel county.  Heads up if you're along Rt. 50 -- extremely dangerous wind gusts and possible rotation within this storm cell.  Wind gusts could exceed 70mph and power outages are likely.  

4:05pm:  Flash Flood Warning in effect for the District of Columbia until 6:30pm.  Torrential rain will cause flash flooding.  Storms still racing East and moving towards Eastern Prince Georges and Anne Arundel counties.

3:59pm: Tornado warning canceled for Montgomery county, but remains in effect through 4:30pm for Prince George's county. 

3:36pm:  Meteorologist Devon Lucie reports power out in Reston, VA with wind gusts to 70mph.  Very strong line extending through Fairfax county.  Tornado warning remains in effect through 4pm.  Head inside if you're in the path of this line of storms.

Live Super Doppler

3:27pm:   TORNADO WARNING FOR THE CITY OF FAIRFAX until 4pm.  Take cover now if you're in the path of this storm cell that is moving East at 45mph.

3:08pm:  Live Super Doppler at 3:05pm.  Storms starting to pick up in speed, as they move through Leesburg, Aldi, Marshall.  Expect wind gusts upwards of 60mph with torrential rain and some lightning.  More storms popping up now over Southern Frederick county.   The main line of storms extending through Fauquier county to Northern Prince William co. will continue to track East.  D.C. to expect storms within the next 2 hours. 

Live Doppler as of 3:05pm

2:47pm: Be sure to have all of these numbers handy later on in case there are power outages. A very dangerous line of storms is heading over the Blue Ridge as we speak.

2:38pm: Here's a look at the tornado warned line of storms. Watch out I-66 cooridor west of the Blue Ridge.

Strong storms west of the Blue Ridge

2:30pm: A Tornado Warning is in effect until 3:00pm for Shenandoah, Warren and Frederick Counties in VA. This storm appears to be headed towards Strasburg in VA near the I-81 and I-66 merge areas.

2:17pm: A Severe T-Storm Warning is in effect until 3:30pm for the Shenandoah Valley from Winchester to Rockingham County, VA.

2:15pm: Highest rainfall totals so far are 0.85" in Purcellville, VA, 0.81" in Myersville, MD and 0.78" in Martinsburg, WV.

2:06pm: Clear skies are allowing for sunshine out ahead of the thunderstorms leading to a bit more instability. This is not good for the afternoon forecast in D.C. A nice line is still forming out over the Shenandoah Valley heading to the D.C. Metro by 5pm.

2:00pm: A new Severe T-Storm Watch has been placed in effect south of the D.C. area including Richmond south through Raleigh and Charlotte, NC. Heads up if you're heading to the NASCAR race tonight under the lights. The watch goes until 10pm tonight. 

1:57pm: Numerous thunderstorms are beginning to fire and intensify west of I-81 in the Shenandoah Valley. They are expected to become severe as they push east towards the D.C. Metro. Damaging winds will continue to be the biggest threat in these new storms.

1:49pm: It looks like a tornado hit Queens, NY earlier today per SPC storm reports. I am not sure if the video below is legit, but thought I would throw it in there anyways. It appears like it may be real but feel free to comment if it's not as it's really hard to get verification from a youtube video.

View more videos at: http://nbcnewyork.com.

1:39pm: A line of storms continues to stretch from Carroll County in Maryland southwest to Northern Loudoun County in Virginia moving towards Point of Rocks. Damaging winds are still possible in this line of storms.

1:32pm: Check out the sky in Frederick County from one of our WeatherBug cameras. Pretty nasty looking out there!

1:28pm: Already one damaging wind report into the NWS with trees down in Washington County, MD

1:17pm: A line of severe thunderstorms is moving into Frederick County in Maryland, bringing with it the chance for damaging winds and heavy rainfall. A Severe Thunderstorm Warning is currently in effect until 2:15pm for Frederick, Washington and Carroll Counties in Maryland.

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