Alert archive / Virginia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 49, NWS Wakefield, VA

April 9, 1999Brunswick County, Lunenburg County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Apr 9, 1999, 7:46 PM EDT for Brunswick County, Lunenburg County, Virginia. It was in force for 59 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 9, 1999, 7:46 PM EDT (23:46 UTC)
Expired
Apr 9, 1999, 8:45 PM EDT
In force
59 min
Issued by
NWS Wakefield, VA
Area
Whole counties

Counties Brunswick County, VA, Lunenburg County, VA

What was reported inside it

TimeReportWhereRemark
Apr 9, 7:50 PM EDTHail 1.75Victoria, VA
Apr 9, 8:20 PM EDTHail 1.75Meredithville, VA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 11.8 hours before the alert went out and 134 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 1999-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 132 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 1999-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.1939587897Sfc1 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
132 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
980 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
213 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.

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 9, 6:54 PM EDTSevere Thunderstorm WarningAKQCumberland, Goochland31 min
Apr 9, 6:54 PM EDTSevere Thunderstorm WarningAKQCaroline, Hanover31 min
Apr 9, 7:02 PM EDTSevere Thunderstorm WarningAKQPowhatan33 min
Apr 9, 7:07 PM EDTSevere Thunderstorm WarningAKQEssex, King and Queen, King William48 min
Apr 9, 7:21 PM EDTSevere Thunderstorm WarningAKQAmelia, Chesterfield, Henrico, City of Richmond49 min
Apr 9, 7:21 PM EDTSevere Thunderstorm WarningAKQNottoway49 min
Apr 9, 7:27 PM EDTSevere Thunderstorm WarningAKQRichmond, Westmoreland33 min
Apr 9, 7:30 PM EDTSevere Thunderstorm WarningAKQCharles City, New Kent50 min
Apr 9, 7:41 PM EDTSevere Thunderstorm WarningAKQPrince George, City of Hopewell49 min
Apr 9, 7:41 PM EDTSevere Thunderstorm WarningAKQDinwiddie, City of Colonial Heights, City of Petersburg49 min
Apr 9, 7:51 PM EDTSevere Thunderstorm WarningAKQGloucester, Mathews34 min
Apr 9, 7:51 PM EDTSevere Thunderstorm WarningAKQLancaster34 min
Apr 9, 7:51 PM EDTSevere Thunderstorm WarningAKQMiddlesex34 min
Apr 9, 7:55 PM EDTSevere Thunderstorm WarningAKQJames City, York, City of Williamsburg50 min
Apr 9, 6:34 PM EDTSevere Thunderstorm WarningAKQDorchester41 min
Apr 9, 7:13 PM EDTSevere Thunderstorm WarningAKQDorchester47 min
Apr 9, 7:35 PM EDTSevere Thunderstorm WarningAKQSomerset, Wicomico45 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1999Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.