Alert archive / Virginia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 18, NWS Wakefield, VA

February 24, 2016Accomack County, Northampton County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Feb 24, 2016, 10:07 PM EST for Accomack County, Northampton County, Virginia. It was in force for 23 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: Feb 24, 2016, 10:07 PM EST (03:07 UTC)
Expired: Feb 24, 2016, 10:30 PM EST
In force: 23 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon

Counties Accomack County, VA, Northampton County, VA

The radar

The Norfolk radar (KAKQ), 120 km from the middle of the area, began a volume at 03:08 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
Feb 24, 1:46 PM EST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 3.1 hours before the alert went out and 59 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: 62 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 526 m²/s²
0-3 km storm-relative helicity: 595 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

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 Feb 24, 9:33 PM EST, 34 minutes earlier.

Area forecast discussion, Feb 24, 9:33 PM EST, 34 minutes before

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Hazardous weather outlook, Feb 24, 9:15 PM EST, 52 minutes before

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In the hours before

Local storm report, Feb 24, 8:55 PM EST, 1 hour 12 minutes before

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Local storm report, Feb 24, 8:57 PM EST, 1 hour 10 minutes before

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Local storm report, Feb 24, 8:59 PM EST, 1 hour 8 minutes before

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Special weather statement, Feb 24, 9:16 PM EST, 51 minutes before

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Local storm report, Feb 24, 9:42 PM EST, 25 minutes before

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Special weather statement, Feb 24, 9:54 PM EST, 13 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
Feb 24, 7:01 PM EST	Tornado Warning	AKQ	Essex, King and Queen, King William, Lancaster, Middlesex, New Kent and 3 more	44 min
Feb 24, 7:06 PM EST	Tornado Warning	AKQ	Charles City, Prince George, City of Hopewell, City of Petersburg	39 min
Feb 24, 7:15 PM EST	Severe Thunderstorm Warning	AKQ	Dinwiddie, Greensville, Prince George, Sussex, City of Colonial Heights, City of Petersburg	30 min
Feb 24, 7:24 PM EST	Tornado Warning	AKQ	Charles City, Henrico, King William, New Kent	36 min
Feb 24, 7:29 PM EST	Severe Thunderstorm Warning	AKQ	Isle of Wight, Southampton, Surry, Sussex, City of Franklin	31 min
Feb 24, 7:40 PM EST	Tornado Warning	AKQ	Southampton, City of Chesapeake, City of Portsmouth, City of Suffolk	35 min
Feb 24, 7:40 PM EST	Tornado Warning	AKQ	Charles City, Henrico, James City, King and Queen, King William, New Kent and 2 more	35 min
Feb 24, 7:52 PM EST	Severe Thunderstorm Warning	AKQ	Essex, King and Queen, Lancaster, Middlesex, Northumberland, Richmond and 1 more	53 min
Feb 24, 8:05 PM EST	Tornado Warning	AKQ	Northumberland, Richmond, Westmoreland	25 min
Feb 24, 8:08 PM EST	Severe Thunderstorm Warning	AKQ	Essex, King and Queen, King William, Lancaster, Middlesex, Richmond	37 min
Feb 24, 8:13 PM EST	Tornado Warning	AKQ	Essex, King and Queen, King William, Lancaster, Middlesex, New Kent and 1 more	32 min
Feb 24, 8:13 PM EST	Tornado Warning	AKQ	City of Chesapeake, City of Norfolk, City of Portsmouth, City of Suffolk, City of Virginia Beach	32 min
Feb 24, 8:23 PM EST	Tornado Warning	AKQ	Essex, Lancaster, Middlesex, Northumberland, Richmond, Westmoreland	37 min
Feb 24, 8:28 PM EST	Special Marine Warning	AKQ		32 min
Feb 24, 8:30 PM EST	Severe Thunderstorm Warning	AKQ	City of Hampton, City of Newport News, City of Poquoson	15 min
Feb 24, 8:44 PM EST	Special Marine Warning	AKQ		91 min
Feb 24, 8:44 PM EST	Severe Thunderstorm Warning	AKQ	Gloucester, Lancaster, Mathews, Middlesex	11 min
Feb 24, 8:45 PM EST	Tornado Warning	AKQ	Isle of Wight, Southampton, City of Suffolk	30 min
Feb 24, 8:49 PM EST	Special Weather Statement	AKQ	City of Hampton, City of Poquoson	26 min
Feb 24, 9:16 PM EST	Special Weather Statement	AKQ	Isle of Wight, Mathews, York, City of Hampton, City of Newport News, City of Poquoson and 2 more	44 min
Feb 24, 9:54 PM EST	Special Weather Statement	AKQ	Accomack	36 min
Feb 25, 12:59 AM EST	Small Craft Advisory	AKQ		51 hr
Feb 25, 10:00 AM EST	Gale Warning	AKQ		3 hr
Feb 25, 1:00 PM EST	Gale Warning	AKQ		15 hr
Feb 24, 7:09 PM EST	Tornado Warning	AKQ	Bertie, Gates, Hertford, Northampton	36 min
Feb 24, 7:58 PM EST	Severe Thunderstorm Warning	AKQ	Dorchester	47 min
Feb 24, 8:49 PM EST	Severe Thunderstorm Warning	AKQ	Dorchester	41 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2016 Every severe thunderstorm warning in 2016

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.