Alert archive / Virginia / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 606

August 16, 2007Calvert County, Charles County, Saint Mary's County, Maryland; 8 counties in North Carolina; 80 counties in Virginia

The Storm Prediction Center issued this severe thunderstorm watch at Aug 16, 2007, 4:44 PM EDT for Calvert County, Charles County, Saint Mary's County, Maryland; 8 counties in North Carolina; 80 counties in Virginia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 16, 2007, 4:44 PM EDT (20:44 UTC)
Expired
Aug 16, 2007, 11:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 91 counties

Calvert County, MD, Charles County, MD, Saint Mary's County, MD, Caswell County, NC, Granville County, NC, Halifax County, NC, Northampton County, NC, Person County, NC, Rockingham County, NC, Vance County, NC, Warren County, NC, Albemarle County, VA, Amelia County, VA, Amherst County, VA, Appomattox County, VA, Augusta County, VA, Bedford County, VA, Botetourt County, VA, Brunswick County, VA, Buckingham County, VA, Campbell County, VA, Caroline County, VA, Charles City County, VA, Charlotte County, VA, Chesterfield County, VA, City of Alexandria, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Colonial Heights, VA, City of Danville, VA, City of Emporia, VA, City of Fairfax, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Hopewell, VA, City of Lexington, VA, City of Lynchburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Martinsville, VA, City of Petersburg, VA, City of Richmond, VA, City of Roanoke, VA, City of Salem, VA, City of Staunton, VA, City of Waynesboro, VA, City of Williamsburg, VA, Culpeper County, VA, Cumberland County, VA, Dinwiddie County, VA, Essex County, VA, Fauquier County, VA, Fluvanna County, VA, Franklin County, VA, Goochland County, VA, Greene County, VA, Greensville County, VA, Halifax County, VA, Hanover County, VA, Henrico County, VA, Henry County, VA, James City County, VA, King and Queen County, VA, King George County, VA, King William County, VA, Louisa County, VA, Lunenburg County, VA, Madison County, VA, Mecklenburg County, VA, Nelson County, VA, New Kent County, VA, Nottoway County, VA, Orange County, VA, Page County, VA, Pittsylvania County, VA, Powhatan County, VA, Prince Edward County, VA, Prince George County, VA, Prince William County, VA, Rappahannock County, VA, Richmond County, VA, Roanoke County, VA, Rockbridge County, VA, Rockingham County, VA, Southampton County, VA, Spotsylvania County, VA, Stafford County, VA, Surry County, VA, Sussex County, VA, Westmoreland County, VA, York County, VA

The radar

The Sterling radar (KLWX), 142 km from the middle of the area, began a volume at 20:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

23 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Aug 16, 4:58 PM EDTSevere Thunderstorm WarningLWXGreene77 min
Aug 16, 5:07 PM EDTSevere Thunderstorm WarningRNKAmherst53 min
Aug 16, 5:11 PM EDTSevere Thunderstorm WarningRNKCampbell94 min
Aug 16, 5:12 PM EDTSevere Thunderstorm WarningLWXMadison32 min
Aug 16, 5:33 PM EDTSevere Thunderstorm WarningRNKBedford42 min
Aug 16, 5:39 PM EDTSevere Thunderstorm WarningLWXAlbemarle66 min
Aug 16, 5:41 PM EDTSevere Thunderstorm WarningLWXOrange64 min
Aug 16, 6:09 PM EDTSevere Thunderstorm WarningAKQLouisa51 min
Aug 16, 6:09 PM EDTSevere Thunderstorm WarningLWXGreene51 min
Aug 16, 6:38 PM EDTSevere Thunderstorm WarningAKQGoochland52 min
Aug 16, 6:45 PM EDTSevere Thunderstorm WarningLWXAlbemarle75 min
Aug 16, 6:48 PM EDTSevere Thunderstorm WarningAKQGoochland, Hanover, Louisa57 min
Aug 16, 7:09 PM EDTSevere Thunderstorm WarningAKQPowhatan66 min
Aug 16, 7:26 PM EDTSevere Thunderstorm WarningAKQAmelia, Chesterfield, Goochland, Henrico, Powhatan, City of Richmond79 min
Aug 16, 7:42 PM EDTSevere Thunderstorm WarningAKQCaroline, Hanover, King William63 min
Aug 16, 8:04 PM EDTSevere Thunderstorm WarningAKQCharles City, Henrico, King William, New Kent41 min
Aug 16, 8:21 PM EDTSevere Thunderstorm WarningRNKBuckingham29 min
Aug 16, 9:43 PM EDTSevere Thunderstorm WarningAKQChesterfield, Henrico, City of Richmond33 min
Aug 16, 9:58 PM EDTSevere Thunderstorm WarningAKQCharles City, Chesterfield, Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg47 min
Aug 16, 10:07 PM EDTSevere Thunderstorm WarningLWXRockingham, City of Harrisonburg38 min
Aug 16, 10:33 PM EDTSevere Thunderstorm WarningLWXPage, Shenandoah54 min
Aug 16, 10:55 PM EDTSevere Thunderstorm WarningLWXMadison33 min
Aug 16, 10:59 PM EDTSevere Thunderstorm WarningLWXRappahannock50 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 7:48 PM EDTMesoscale DiscussionSPCCalvert, Charles, Dorchester, Prince George's, Saint Mary's, Somerset and 1 more57 min
Aug 16, 2:55 PM EDTMesoscale DiscussionSPCAlbemarle, Amelia, Amherst, Appomattox, Augusta, Bedford and 70 more3 hr
Aug 16, 7:39 PM EDTSevere Thunderstorm WatchSPCAlleghany, Bath, Craig, Giles, Highland, City of Covington3 hr

Nearby

Severe Thunderstorm Watches in Virginia, 2007Severe Thunderstorm Watches in North Carolina, 2007Severe Thunderstorm Watches in Maryland, 2007Every severe thunderstorm watch in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.