Alert archive / Virginia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 79, NWS Wakefield, VA

July 12, 1990Essex County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 12, 1990, 6:17 PM EDT for Essex County, Virginia. It was in force for 58 min.

The area

The counties it named.

The facts

Issued: Jul 12, 1990, 6:17 PM EDT (22:17 UTC)
Expired: Jul 12, 1990, 7:15 PM EDT
In force: 58 min
Issued by: NWS Wakefield, VA
Area: Whole counties

County Essex 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.3 hours before the alert went out and 119 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: 69 J/kg
Mixed-layer CIN: -180 J/kg
Mixed-layer LCL: 596 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 150 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jul 12, 5:02 PM EDT, 1 hour 15 minutes before

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Local storm report, Jul 12, 5:16 PM EDT, 1 hour 1 minute before

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Special weather statement, Jul 12, 5:17 PM EDT, 1 hour before

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Special weather statement, Jul 12, 5:37 PM EDT, 40 minutes before

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Special weather statement, Jul 12, 5:51 PM EDT, 26 minutes before

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Special weather statement, Jul 12, 5:54 PM EDT, 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 8:06 PM EDT	Severe Thunderstorm Warning	AKQ	Surry, Sussex	69 min
Jul 11, 8:10 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Chesterfield, Henrico	65 min
Jul 11, 8:10 PM EDT	Severe Thunderstorm Warning	AKQ	Prince George	65 min
Jul 11, 8:13 PM EDT	Severe Thunderstorm Warning	AKQ	City of Virginia Beach	47 min
Jul 11, 8:41 PM EDT	Severe Thunderstorm Warning	AKQ	Southampton	64 min
Jul 11, 10:50 PM EDT	Flash Flood Warning	AKQ	City of Virginia Beach	55 min
Jul 12, 5:53 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Mecklenburg	67 min
Jul 12, 6:17 PM EDT	Severe Thunderstorm Warning	AKQ	Lancaster, Richmond	58 min
Jul 12, 6:35 PM EDT	Severe Thunderstorm Warning	AKQ	Greensville	40 min
Jul 12, 6:50 PM EDT	Severe Thunderstorm Warning	AKQ	Northumberland	40 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1990 Every 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.