Alert archive / Virginia / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 25, NWS Wakefield, VA

April 7, 20204 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Apr 7, 2020, 5:11 PM EDT for 4 counties in Virginia. It was in force for 34 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: Apr 7, 2020, 5:11 PM EDT (21:11 UTC)
Expired: Apr 7, 2020, 5:45 PM EDT
In force: 34 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lancaster County, VA, Mathews County, VA, Middlesex County, VA, Northumberland County, VA

The radar

The Norfolk radar (KAKQ), 90 km from the middle of the area, began a volume at 21:12 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 nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.2 hours before the alert went out and 96 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2155 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Apr 7, 4:25 PM EDT, 46 minutes earlier.

Area forecast discussion, Apr 7, 4:25 PM EDT, 46 minutes before

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Hazardous weather outlook, Apr 7, 4:33 PM EDT, 38 minutes before

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In the hours before

Special weather statement, Apr 7, 3:14 PM EDT, 1 hour 57 minutes before

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Special weather statement, Apr 7, 3:14 PM EDT, 1 hour 57 minutes before

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Local storm report, Apr 7, 3:20 PM EDT, 1 hour 51 minutes before

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Special weather statement, Apr 7, 4:08 PM EDT, 1 hour 3 minutes before

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Local storm report, Apr 7, 5:03 PM EDT, 8 minutes before

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Special weather statement, Apr 7, 5:03 PM EDT, 8 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
Apr 7, 12:27 PM EDT	Special Weather Statement	AKQ	Prince Edward	48 min
Apr 7, 12:58 PM EDT	Special Weather Statement	AKQ	Nottoway, Prince Edward	47 min
Apr 7, 1:39 PM EDT	Special Weather Statement	AKQ	Lunenburg	51 min
Apr 7, 1:43 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Lunenburg, Mecklenburg	47 min
Apr 7, 2:27 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick	36 min
Apr 7, 2:32 PM EDT	Special Weather Statement	AKQ	Sussex	28 min
Apr 7, 2:46 PM EDT	Severe Thunderstorm Warning	AKQ	Southampton, Sussex	24 min
Apr 7, 3:06 PM EDT	Severe Thunderstorm Warning	AKQ	Mecklenburg	22 min
Apr 7, 3:34 PM EDT	Severe Thunderstorm Warning	AKQ	Greensville, Southampton	21 min
Apr 7, 3:57 PM EDT	Severe Thunderstorm Warning	AKQ	Caroline, Essex, Northumberland, Richmond, Westmoreland	48 min
Apr 7, 4:30 PM EDT	Severe Thunderstorm Warning	AKQ	Essex, King and Queen, Lancaster, Middlesex, Northumberland, Richmond and 1 more	45 min
Apr 7, 4:39 PM EDT	Special Marine Warning	AKQ		96 min
Apr 7, 5:18 PM EDT	Special Weather Statement	AKQ	Hanover	27 min
Apr 7, 5:32 PM EDT	Special Marine Warning	AKQ		43 min
Apr 7, 5:35 PM EDT	Severe Thunderstorm Warning	AKQ	Accomack, Northampton	55 min
Apr 7, 5:46 PM EDT	Special Weather Statement	AKQ	Chesterfield, Henrico, King William, City of Richmond	44 min
Apr 7, 6:05 PM EDT	Special Marine Warning	AKQ		55 min
Apr 7, 6:13 PM EDT	Special Weather Statement	AKQ	Charles City, Henrico, New Kent, Prince George, City of Colonial Heights, City of Hopewell and 1 more	32 min
Apr 7, 6:40 PM EDT	Special Marine Warning	AKQ		65 min
Apr 7, 6:40 PM EDT	Special Weather Statement	AKQ	Surry	50 min
Apr 7, 6:47 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Prince George, Surry, Sussex	28 min
Apr 7, 6:52 PM EDT	Special Marine Warning	AKQ		53 min
Apr 7, 7:15 PM EDT	Special Weather Statement	AKQ	Isle of Wight	45 min
Apr 7, 7:38 PM EDT	Special Weather Statement	AKQ	Isle of Wight, City of Portsmouth	37 min
Apr 7, 7:46 PM EDT	Special Marine Warning	AKQ		29 min
Apr 7, 3:14 PM EDT	Special Weather Statement	AKQ	Halifax	46 min
Apr 7, 4:08 PM EDT	Special Weather Statement	AKQ	Gates, Hertford	52 min
Apr 7, 4:27 PM EDT	Severe Thunderstorm Warning	AKQ	Bertie, Gates, Hertford	33 min
Apr 7, 5:03 PM EDT	Special Weather Statement	AKQ	Bertie	27 min
Apr 7, 5:39 PM EDT	Special Weather Statement	AKQ	Bertie	36 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2020 Every severe thunderstorm warning in 2020

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.