Alert archive / Virginia / Severe Thunderstorm Watches in 1998

Severe Thunderstorm Watch 596

June 16, 1998Saint Mary's County, Somerset County, Maryland; 23 counties in North Carolina; 64 counties in Virginia

The Storm Prediction Center issued this severe thunderstorm watch at Jun 16, 1998, 4:15 PM EDT for Saint Mary's County, Somerset County, Maryland; 23 counties in North Carolina; 64 counties in Virginia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 16, 1998, 4:15 PM EDT (20:15 UTC)
Expired
Jun 16, 1998, 10:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 89 counties

Saint Mary's County, MD, Somerset County, MD, Bertie County, NC, Camden County, NC, Chowan County, NC, Currituck County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Halifax County, NC, Hertford County, NC, Martin County, NC, Nash County, NC, Northampton County, NC, Orange County, NC, Pasquotank County, NC, Perquimans County, NC, Person County, NC, Tyrrell County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Accomack County, VA, Albemarle County, VA, Amelia County, VA, Appomattox County, VA, Brunswick County, VA, Buckingham County, VA, Caroline County, VA, Charles City County, VA, Charlotte County, VA, Chesterfield County, VA, City of Charlottesville, 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 Waynesboro, 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 George County, VA, King William County, VA, Lancaster County, VA, Louisa County, VA, Lunenburg County, VA, Mathews County, VA, Mecklenburg County, VA, Middlesex County, VA, Nelson County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Nottoway County, VA, Orange 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 Norfolk radar (KAKQ), 75 km from the middle of the area, began a volume at 20:15 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

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

IssuedProductOfficeCountiesLasted
Jun 16, 4:17 PM EDTSevere Thunderstorm WarningLWXAlbemarle, Greene, Madison48 min
Jun 16, 4:26 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville49 min
Jun 16, 4:29 PM EDTSevere Thunderstorm WarningLWXNelson31 min
Jun 16, 4:35 PM EDTSevere Thunderstorm WarningRNKCharlotte35 min
Jun 16, 4:53 PM EDTSevere Thunderstorm WarningAKQLunenburg47 min
Jun 16, 4:58 PM EDTSevere Thunderstorm WarningRAHPerson47 min
Jun 16, 5:08 PM EDTSevere Thunderstorm WarningRAHGranville22 min
Jun 16, 5:11 PM EDTSevere Thunderstorm WarningAKQNottoway49 min
Jun 16, 5:13 PM EDTTornado WarningRAHGranville32 min
Jun 16, 5:18 PM EDTTornado WarningRAHGranville27 min
Jun 16, 5:29 PM EDTSevere Thunderstorm WarningAKQLouisa31 min
Jun 16, 5:34 PM EDTSevere Thunderstorm WarningAKQPowhatan36 min
Jun 16, 5:34 PM EDTSevere Thunderstorm WarningLWXAlbemarle, Orange51 min
Jun 16, 5:36 PM EDTSevere Thunderstorm WarningAKQMecklenburg34 min
Jun 16, 5:42 PM EDTTornado WarningRAHVance18 min
Jun 16, 5:49 PM EDTSevere Thunderstorm WarningAKQChesterfield51 min
Jun 16, 5:54 PM EDTSevere Thunderstorm WarningAKQBrunswick36 min
Jun 16, 5:58 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville47 min
Jun 16, 6:11 PM EDTSevere Thunderstorm WarningAKQNorthampton34 min
Jun 16, 6:14 PM EDTSevere Thunderstorm WarningLWXSpotsylvania51 min
Jun 16, 6:33 PM EDTSevere Thunderstorm WarningAKQSouthampton, Sussex47 min
Jun 16, 6:37 PM EDTSevere Thunderstorm WarningAKQEssex, Richmond, Westmoreland33 min
Jun 16, 6:37 PM EDTSevere Thunderstorm WarningAKQCaroline48 min
Jun 16, 6:53 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, City of Franklin32 min
Jun 16, 6:57 PM EDTSevere Thunderstorm WarningAKQCity of Suffolk33 min
Jun 16, 7:16 PM EDTSevere Thunderstorm WarningLWXSaint Mary's49 min
Jun 16, 7:17 PM EDTSevere Thunderstorm WarningAKQCity of Hampton, City of Newport News48 min
Jun 16, 7:17 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake, City of Norfolk, City of Portsmouth48 min
Jun 16, 7:32 PM EDTSevere Thunderstorm WarningAKQCity of Virginia Beach33 min
Jun 16, 7:45 PM EDTSevere Thunderstorm WarningAKQNorthampton35 min
Jun 16, 8:00 PM EDTSevere Thunderstorm WarningAKQSomerset, Wicomico50 min

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 8.3 hours before the alert went out and 159 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 1998-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 121 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 1998-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
121 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 4:00 PM EDTSevere Thunderstorm WatchSPCAllegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 15 more6 hr
Jun 16, 7:15 PM EDTSevere Thunderstorm WatchSPCBaltimore, Caroline, Cecil, Harford, Kent, Queen Anne's and 2 more4 hr
Jun 16, 2:15 PM EDTSevere Thunderstorm WatchSPCAlamance, Alexander, Alleghany, Ashe, Cabarrus, Caldwell and 22 more6 hr
Jun 16, 5:00 PM EDTSevere Thunderstorm WatchSPCBertie, Bladen, Brunswick, Columbus, Craven, Cumberland and 19 more6 hr

Nearby

Severe Thunderstorm Watches in Virginia, 1998Severe Thunderstorm Watches in North Carolina, 1998Severe Thunderstorm Watches in Maryland, 1998Every severe thunderstorm watch in 1998

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.