Alert archive / Virginia / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 321

May 22, 200025 counties in North Carolina; 41 counties in Virginia

The Storm Prediction Center issued this severe thunderstorm watch at May 22, 2000, 3:15 PM EDT for 25 counties in North Carolina; 41 counties in Virginia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 22, 2000, 3:15 PM EDT (19:15 UTC)
Expired: May 22, 2000, 9:00 PM EDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 66 counties

Beaufort County, NC, Bertie County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Craven County, NC, Currituck County, NC, Dare County, NC, Edgecombe County, NC, Gates County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Hyde County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Northampton County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Tyrrell County, NC, Washington County, NC, Amelia County, VA, Brunswick County, VA, Charles City 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, Dinwiddie County, VA, Gloucester County, VA, Goochland County, VA, Greensville 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, Mathews County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Powhatan County, VA, Prince George County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, York County, VA

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 22, 3:43 PM EDT	Severe Thunderstorm Warning	AKQ	Northampton	47 min
May 22, 4:07 PM EDT	Severe Thunderstorm Warning	AKQ	Hertford	48 min
May 22, 4:32 PM EDT	Severe Thunderstorm Warning	AKQ	Southampton	48 min
May 22, 4:47 PM EDT	Severe Thunderstorm Warning	AKQ	Chowan	23 min
May 22, 4:58 PM EDT	Severe Thunderstorm Warning	AKQ	Perquimans	32 min
May 22, 5:14 PM EDT	Severe Thunderstorm Warning	MHX	Martin	46 min
May 22, 5:34 PM EDT	Severe Thunderstorm Warning	AKQ	Pasquotank	21 min
May 22, 6:02 PM EDT	Severe Thunderstorm Warning	MHX	Lenoir	28 min
May 22, 6:04 PM EDT	Severe Thunderstorm Warning	MHX	Washington	41 min
May 22, 6:10 PM EDT	Severe Thunderstorm Warning	MHX	Dare	50 min
May 22, 6:42 PM EDT	Severe Thunderstorm Warning	AKQ	Dinwiddie, Nottoway	33 min
May 22, 6:48 PM EDT	Severe Thunderstorm Warning	MHX	Craven	42 min
May 22, 7:20 PM EDT	Severe Thunderstorm Warning	AKQ	Dinwiddie, Sussex	45 min
May 22, 8:12 PM EDT	Severe Thunderstorm Warning	MHX	Craven	33 min
May 22, 8:31 PM EDT	Severe Thunderstorm Warning	AKQ	Southampton	19 min
May 22, 8:45 PM EDT	Severe Thunderstorm Warning	MHX	Craven	45 min

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 7.3 hours before the alert went out and 201 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: 2177 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 568 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

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

000 
WWUS9 KMKC 221855
MKC WW 221855
NCZ000-VAZ000-CWZ000-230100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 321
STORM PREDICTION CENTER NORMAN OK
255 PM EDT MON MAY 22 2000

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   EASTERN NORTH CAROLINA                     
   SOUTHEAST VIRGINIA                           
   LOWER CHEASEPEAKE BAY   
   COASTAL WATERS                     

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 315 PM UNTIL 900
PM EDT.

HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHEAST OF RICHMOND
VIRGINIA TO 45 MILES SOUTHEAST OF NEW BERN NORTH CAROLINA.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.


DISCUSSION...THUNDERSTORMS INTENSIFYING INTO SERN VA AHEAD OF UPPER
VORT MAX.   MOST UNSTABLE AIRMASS WITH CAPES TO 3000 J/KG AND
FAVORABLE SHEAR PROFILES ERN NC...SUPPORTS ADDITIONAL STORMS
MOVING/DEVELOPING INTO THIS AREA.  ISOLATED SUPERCELLS
LIKELY...ENHANCING LARGE HAIL AND DAMAGING WIND THREAT.


AVIATION...A FEW SEVERE THUNDERSTORMS WITH> HAIL SURFACE AND ALOFT
TO 3 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.  MEAN STORM
MOTION VECTOR 27030.


...HALES

;375,0760 343,0752 343,0773 375,0781;

Nearby

Severe Thunderstorm Watches in Virginia, 2000 Severe Thunderstorm Watches in North Carolina, 2000 Every severe thunderstorm watch in 2000

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.