Alert archive / Virginia / Mesoscale Discussions in 2014

Mesoscale Discussion 637

May 21, 20146 counties in Maryland; 76 counties in Virginia; 4 counties in West Virginia

The Storm Prediction Center issued this mesoscale discussion at May 21, 2014, 2:10 PM EDT for 6 counties in Maryland; 76 counties in Virginia; 4 counties in West Virginia. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: May 21, 2014, 2:10 PM EDT (18:10 UTC)
Expired: May 21, 2014, 4:45 PM EDT
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 80%

All 86 counties

Calvert County, MD, Charles County, MD, Montgomery County, MD, Prince George's County, MD, Saint Mary's County, MD, Somerset County, MD, Accomack County, VA, Albemarle County, VA, Amelia County, VA, Arlington County, VA, Augusta County, VA, Caroline County, VA, Charles City County, VA, Chesterfield County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Chesapeake, VA, City of Colonial Heights, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Hampton, VA, City of Harrisonburg, VA, City of Hopewell, VA, City of Manassas, VA, City of Manassas Park, VA, City of Newport News, VA, City of Norfolk, VA, City of Petersburg, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Richmond, VA, City of Staunton, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Waynesboro, VA, City of Williamsburg, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Cumberland County, VA, Dinwiddie County, VA, Essex County, VA, Fairfax County, VA, Fauquier County, VA, Fluvanna County, VA, Frederick County, VA, Gloucester County, VA, Goochland County, VA, Greene County, VA, Hanover County, VA, Henrico County, VA, Isle of Wight County, VA, James City County, VA, King and Queen County, VA, King George County, VA, King William County, VA, Lancaster County, VA, Loudoun County, VA, Louisa County, VA, Madison County, VA, Mathews County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Orange County, VA, Page County, VA, Powhatan County, VA, Prince George County, VA, Prince William County, VA, Rappahannock County, VA, Richmond County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Surry County, VA, Sussex County, VA, Warren County, VA, Westmoreland County, VA, York County, VA, Grant County, WV, Hardy County, WV, Jefferson County, WV, Pendleton County, WV

The radar

The Norfolk radar (KAKQ), 112 km from the middle of the area, began a volume at 18:16 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.

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 21, 6:54 PM EDT	Mesoscale Discussion	SPC	Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more	96 min
May 21, 12:54 PM EDT	Mesoscale Discussion	SPC	Mason, Wood	3 hr
May 21, 1:52 PM EDT	Severe Thunderstorm Watch	SPC	Boone, Braxton, Cabell, Calhoun, Clay, Doddridge and 17 more	9 hr
May 21, 4:12 PM EDT	Mesoscale Discussion	SPC	Jackson, Mason, Pleasants, Ritchie, Wirt, Wood	2 hr
May 21, 7:50 PM EDT	Mesoscale Discussion	SPC	Cabell, Calhoun, Clay, Jackson, Kanawha, Lincoln and 8 more	85 min

Nearby

Mesoscale Discussions in Virginia, 2014 Mesoscale Discussions in Maryland, 2014 Mesoscale Discussions in West Virginia, 2014 Every mesoscale discussion in 2014

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.