Alert archive / Virginia / Mesoscale Discussions in 2004

Mesoscale Discussion 584

May 7, 200419 counties in Virginia

The Storm Prediction Center issued this mesoscale discussion at May 7, 2004, 7:02 PM EDT for 19 counties in Virginia. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 7, 2004, 7:02 PM EDT (23:02 UTC)
Expired: May 7, 2004, 9:30 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Caroline County, VA, City of Richmond, VA, Essex County, VA, Fluvanna County, VA, Gloucester County, VA, Goochland County, VA, Hanover County, VA, Henrico County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Louisa County, VA, Middlesex County, VA, New Kent County, VA, Northumberland County, VA, Powhatan County, VA, Richmond County, VA, Spotsylvania County, VA, Westmoreland County, VA

The radar

The Norfolk radar (KAKQ), 94 km from the middle of the area, began a volume at 23:02 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 159May 7, 7:20 PM EDT

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 7, 10:29 AM EDT	Mesoscale Discussion	SPC	Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 14 more	91 min
May 7, 11:00 AM EDT	Severe Thunderstorm Watch	SPC	Arlington, Clarke, Frederick, Loudoun, Shenandoah, Warren and 3 more	6 hr
May 7, 1:49 PM EDT	Mesoscale Discussion	SPC	Clarke, Frederick, Loudoun, Shenandoah, Warren, City of Winchester	86 min
May 7, 4:35 PM EDT	Severe Thunderstorm Watch	SPC	Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 21 more	5 hr
May 7, 6:17 PM EDT	Mesoscale Discussion	SPC	Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 20 more	118 min
May 7, 7:20 PM EDT	Severe Thunderstorm Watch	SPC	Accomack, Caroline, Essex, Gloucester, Hanover, King and Queen and 10 more	4 hr

Nearby

Mesoscale Discussions in Virginia, 2004 Every mesoscale discussion in 2004

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.