Alert archive / Virginia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 92, NWS Wakefield, VA

September 7, 1990Brunswick County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Sep 7, 1990, 6:04 PM EDT for Brunswick County, Virginia. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Sep 7, 1990, 6:04 PM EDT (22:04 UTC)
Expired
Sep 7, 1990, 6:45 PM EDT
In force
41 min
Issued by
NWS Wakefield, VA
Area
Whole counties

County Brunswick County, VA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.1 hours before the alert went out and 198 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, Greensboro/Hi Pt, NC at 12:00Z on 1990-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 737 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, Greensboro/Hi Pt, NC at 12:00Z on 1990-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939Sfc1 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
737 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1456 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Sep 7, 4:46 PM EDTSevere Thunderstorm WarningAKQEssex44 min
Sep 7, 5:43 PM EDTSevere Thunderstorm WarningAKQDinwiddie, Prince George47 min
Sep 7, 5:45 PM EDTSevere Thunderstorm WarningAKQMiddlesex30 min
Sep 7, 5:45 PM EDTSevere Thunderstorm WarningAKQMathews30 min
Sep 7, 6:02 PM EDTSevere Thunderstorm WarningAKQSurry, Sussex43 min
Sep 7, 6:17 PM EDTSevere Thunderstorm WarningAKQNorthampton43 min
Sep 7, 6:41 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake, City of Portsmouth, City of Virginia Beach49 min
Sep 7, 6:41 PM EDTSevere Thunderstorm WarningAKQCity of Hampton49 min
Sep 7, 6:44 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, Southampton61 min
Sep 7, 7:33 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake27 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1990Every severe thunderstorm warning in 1990

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.