Alert archive / Virginia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 101, NWS Wakefield, VA

June 4, 20084 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jun 4, 2008, 8:04 PM EDT for 4 counties in Virginia. It was in force for 71 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 4, 2008, 8:04 PM EDT (00:04 UTC)
Expired: Jun 4, 2008, 9:15 PM EDT
In force: 71 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon

Counties Essex County, VA, Northumberland County, VA, Richmond County, VA, Westmoreland County, VA

The radar

The Norfolk radar (KAKQ), 112 km from the middle of the area, began a volume at 00:05 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 4, 7:34 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.1 hours before the alert went out and 124 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: 225 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1210 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 6.6

Open this sounding in Storm Lab

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.

NWS Wakefield, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 4, 6:24 PM EDT, 1 hour 40 minutes earlier.

Area forecast discussion, Jun 4, 6:24 PM EDT, 1 hour 40 minutes before

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Hazardous weather outlook, Jun 4, 7:46 PM EDT, 18 minutes before

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In the hours before

Local storm report, Jun 4, 4:36 PM EDT, 3 hours 28 minutes before

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Special weather statement, Jun 4, 4:49 PM EDT, 3 hours 15 minutes before

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Local storm report, Jun 4, 5:14 PM EDT, 2 hours 50 minutes before

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Special weather statement, Jun 4, 6:04 PM EDT, 2 hours before

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Special weather statement, Jun 4, 6:49 PM EDT, 1 hour 15 minutes before

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Special weather statement, Jun 4, 6:55 PM EDT, 1 hour 9 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
Jun 4, 8:29 PM EDT	Severe Thunderstorm Warning	AKQ	Fluvanna, Goochland, Louisa	46 min
Jun 4, 9:08 PM EDT	Severe Thunderstorm Warning	AKQ	Hanover, Louisa	37 min
Jun 4, 9:17 PM EDT	Special Marine Warning	AKQ		88 min
Jun 4, 9:36 PM EDT	Severe Thunderstorm Warning	AKQ	Accomack	39 min
Jun 4, 10:41 PM EDT	Special Marine Warning	AKQ		49 min
Jun 4, 10:53 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Chesterfield, Dinwiddie, Prince George, City of Colonial Heights, City of Hopewell and 1 more	33 min
Jun 4, 11:02 PM EDT	Special Marine Warning	AKQ		88 min
Jun 4, 11:12 PM EDT	Severe Thunderstorm Warning	AKQ	Accomack, Northampton	33 min
Jun 4, 11:18 PM EDT	Severe Thunderstorm Warning	AKQ	Dinwiddie, Isle of Wight, Prince George, Surry, Sussex, City of Petersburg	42 min
Jun 4, 11:35 PM EDT	Special Marine Warning	AKQ		55 min
Jun 5, 12:21 AM EDT	Special Marine Warning	AKQ		24 min
Jun 5, 12:25 AM EDT	Severe Thunderstorm Warning	AKQ	Lancaster, Middlesex	14 min
Jun 5, 12:34 AM EDT	Severe Thunderstorm Warning	AKQ	Accomack, Northampton	26 min
Jun 5, 12:38 AM EDT	Special Marine Warning	AKQ		97 min
Jun 5, 12:57 AM EDT	Special Marine Warning	AKQ		63 min
Jun 5, 4:12 AM EDT	Heat Advisory	AKQ	Amelia, Brunswick, Charles City, Cumberland, Dinwiddie, Greensville and 14 more	16 hr
Jun 4, 8:41 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	64 min
Jun 4, 9:20 PM EDT	Severe Thunderstorm Warning	AKQ	Wicomico, Worcester	48 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2008 Every severe thunderstorm warning in 2008

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.