Alert archive / Virginia / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 303

May 13, 2002Somerset County, Maryland; 45 counties in North Carolina; 57 counties in Virginia

The Storm Prediction Center issued this severe thunderstorm watch at May 13, 2002, 6:30 PM EDT for Somerset County, Maryland; 45 counties in North Carolina; 57 counties in Virginia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 13, 2002, 6:30 PM EDT (22:30 UTC)
Expired: May 14, 2002, 12:00 AM EDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 103 counties

Somerset County, MD, Alamance County, NC, Anson County, NC, Beaufort County, NC, Bertie County, NC, Camden County, NC, Caswell County, NC, Chatham County, NC, Chowan County, NC, Craven County, NC, Cumberland County, NC, Currituck County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Harnett County, NC, Hertford County, NC, Hoke County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Martin County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Northampton County, NC, Orange County, NC, Pasquotank County, NC, Perquimans County, NC, Person County, NC, Pitt County, NC, Randolph County, NC, Richmond County, NC, Sampson County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Accomack County, VA, Amelia County, VA, Brunswick County, VA, Buckingham County, VA, Caroline County, VA, Charles City County, VA, Charlotte County, VA, Chesterfield County, VA, City of Chesapeake, VA, City of Colonial Heights, VA, City of Emporia, VA, City of Franklin, VA, City of Hampton, VA, City of Hopewell, 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 Suffolk, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Cumberland County, VA, Dinwiddie County, VA, Essex County, VA, Fluvanna County, VA, Gloucester County, VA, Goochland County, VA, Greensville County, VA, Halifax County, VA, Hanover County, VA, Henrico County, VA, Isle of Wight County, VA, James City County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Louisa County, VA, Lunenburg County, VA, Mathews County, VA, Mecklenburg County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Nottoway County, VA, Powhatan County, VA, Prince Edward County, VA, Prince George County, VA, Richmond County, VA, Southampton County, VA, Spotsylvania County, VA, Surry County, VA, Sussex County, VA, Westmoreland County, VA, York County, VA

The radar

The Raleigh/Durham radar (KRAX), 72 km from the middle of the area, began a volume at 22:33 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.

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 13, 6:33 PM EDT	Severe Thunderstorm Warning	AKQ	Lunenburg, Mecklenburg, Prince Edward	32 min
May 13, 6:35 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte	40 min
May 13, 6:44 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Stanly	31 min
May 13, 6:46 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Randolph	44 min
May 13, 6:52 PM EDT	Severe Thunderstorm Warning	RAH	Moore	28 min
May 13, 7:12 PM EDT	Severe Thunderstorm Warning	RAH	Lee	33 min
May 13, 7:12 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Lunenburg	38 min
May 13, 7:22 PM EDT	Severe Thunderstorm Warning	RAH	Richmond	23 min
May 13, 7:26 PM EDT	Severe Thunderstorm Warning	RAH	Wake	34 min
May 13, 7:31 PM EDT	Severe Thunderstorm Warning	RAH	Harnett	29 min
May 13, 7:34 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Granville	26 min
May 13, 7:38 PM EDT	Severe Thunderstorm Warning	AKQ	Dinwiddie	32 min
May 13, 7:41 PM EDT	Severe Thunderstorm Warning	RAH	Hoke, Moore, Scotland	34 min
May 13, 7:50 PM EDT	Severe Thunderstorm Warning	AKQ	Northumberland, Richmond, Westmoreland	30 min
May 13, 7:51 PM EDT	Severe Thunderstorm Warning	RAH	Johnston	24 min
May 13, 7:57 PM EDT	Severe Thunderstorm Warning	AKQ	Sussex	28 min
May 13, 8:01 PM EDT	Severe Thunderstorm Warning	RAH	Franklin	14 min
May 13, 8:03 PM EDT	Severe Thunderstorm Warning	AKQ	Northampton	32 min
May 13, 8:04 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett	41 min
May 13, 8:06 PM EDT	Severe Thunderstorm Warning	RAH	Nash, Wilson	24 min
May 13, 8:16 PM EDT	Tornado Warning	RAH	Franklin	14 min
May 13, 8:17 PM EDT	Severe Thunderstorm Warning	AKQ	Surry	28 min
May 13, 8:18 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, James City, Mathews, York, City of Hampton, City of Newport News and 2 more	27 min
May 13, 8:19 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, James City, Mathews, York, City of Hampton, City of Newport News and 2 more	26 min
May 13, 8:27 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, City of Franklin, City of Suffolk	28 min
May 13, 8:29 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Nash, Wilson	36 min
May 13, 8:32 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	38 min
May 13, 8:32 PM EDT	Severe Thunderstorm Warning	RAH	Wayne	28 min
May 13, 8:33 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	42 min
May 13, 8:45 PM EDT	Severe Thunderstorm Warning	AKQ	Accomack	40 min
May 13, 8:51 PM EDT	Severe Thunderstorm Warning	MHX	Lenoir	54 min
May 13, 8:53 PM EDT	Severe Thunderstorm Warning	MHX	Greene, Martin, Pitt	37 min
May 13, 8:56 PM EDT	Severe Thunderstorm Warning	AKQ	Northampton, City of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach	44 min
May 13, 8:58 PM EDT	Severe Thunderstorm Warning	RAH	Wayne	32 min
May 13, 9:01 PM EDT	Severe Thunderstorm Warning	MHX	Duplin	59 min
May 13, 9:06 PM EDT	Tornado Warning	MHX	Martin	24 min
May 13, 9:14 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	46 min
May 13, 9:16 PM EDT	Severe Thunderstorm Warning	AKQ	Bertie	29 min
May 13, 9:16 PM EDT	Severe Thunderstorm Warning	MHX	Beaufort	44 min
May 13, 9:32 PM EDT	Severe Thunderstorm Warning	MHX	Washington	58 min
May 13, 9:39 PM EDT	Severe Thunderstorm Warning	AKQ	Camden, Chowan, Currituck, Pasquotank, Perquimans	46 min
May 13, 9:39 PM EDT	Severe Thunderstorm Warning	MHX	Craven, Jones	51 min
May 13, 9:40 PM EDT	Severe Thunderstorm Warning	MHX	Lenoir	20 min
May 13, 9:54 PM EDT	Severe Thunderstorm Warning	AKQ	City of Virginia Beach	26 min

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.5 hours before the alert went out and 162 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 719 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 746 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 1:30 PM EDT	Tornado Watch	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more	6 hr
May 13, 10:00 AM EDT	Severe Thunderstorm Watch	SPC	Alexander, Alleghany, Ashe, Avery, Buncombe, Burke and 27 more	5 hr
May 13, 3:00 PM EDT	Severe Thunderstorm Watch	SPC	Alamance, Alexander, Alleghany, Ashe, Avery, Buncombe and 39 more	5 hr
May 13, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	Scotland	5 hr
May 13, 7:15 PM EDT	Severe Thunderstorm Watch	SPC	Bladen, Brunswick, Columbus, New Hanover, Onslow, Pender and 2 more	5 hr
May 13, 5:45 AM EDT	Severe Thunderstorm Watch	SPC	Bland, Buchanan, Dickenson, Lee, Russell, Scott and 6 more	5 hr

Nearby

Severe Thunderstorm Watches in Virginia, 2002 Severe Thunderstorm Watches in North Carolina, 2002 Severe Thunderstorm Watches in Maryland, 2002 Every severe thunderstorm watch in 2002

Sources

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