Alert archive / Virginia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 133, NWS Wakefield, VA

September 1, 2016Mecklenburg County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Sep 1, 2016, 2:31 PM EDT for Mecklenburg County, Virginia. It was in force for 29 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: Sep 1, 2016, 2:31 PM EDT (18:31 UTC)
Expired: Sep 1, 2016, 3:00 PM EDT
In force: 29 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Mecklenburg County, VA

The radar

The Raleigh/Durham radar (KRAX), 113 km from the middle of the area, began a volume at 18:34 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.5 hours before the alert went out and 153 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: 375 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 974 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: 59 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 Sep 1, 2:31 PM EDT, 0 minutes earlier.

Area forecast discussion, Sep 1, 2:31 PM EDT, 0 minutes before

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Hazardous weather outlook, Sep 1, 10:26 AM EDT, 4 hours 5 minutes before

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In the hours before

Special weather statement, Sep 1, 12:45 PM EDT, 1 hour 46 minutes before

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Special weather statement, Sep 1, 1:20 PM EDT, 1 hour 11 minutes before

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Special weather statement, Sep 1, 1:31 PM EDT, 1 hour before

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Special weather statement, Sep 1, 1:55 PM EDT, 36 minutes before

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Special weather statement, Sep 1, 2:09 PM EDT, 22 minutes before

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Special weather statement, Sep 1, 2:13 PM EDT, 18 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
Aug 31, 8:05 PM EDT	Special Weather Statement	AKQ	Cumberland, Fluvanna, Goochland, Powhatan	55 min
Aug 31, 8:09 PM EDT	Special Weather Statement	AKQ	Louisa	66 min
Aug 31, 8:48 PM EDT	Special Weather Statement	AKQ	Caroline, Goochland, Hanover, Louisa, Powhatan	42 min
Aug 31, 8:57 PM EDT	Special Weather Statement	AKQ	Caroline	48 min
Aug 31, 9:43 PM EDT	Special Weather Statement	AKQ	Caroline, Hanover	47 min
Aug 31, 10:40 PM EDT	Special Weather Statement	AKQ	Essex, King and Queen, King William	50 min
Sep 1, 12:23 PM EDT	Special Weather Statement	AKQ	Accomack	37 min
Sep 1, 12:45 PM EDT	Special Weather Statement	AKQ	City of Newport News	45 min
Sep 1, 1:20 PM EDT	Special Weather Statement	AKQ	City of Norfolk, City of Portsmouth	40 min
Sep 1, 1:31 PM EDT	Special Weather Statement	AKQ	Southampton, City of Franklin	44 min
Sep 1, 1:55 PM EDT	Special Weather Statement	AKQ	Northampton	50 min
Sep 1, 2:09 PM EDT	Special Weather Statement	AKQ	City of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach	51 min
Sep 1, 2:53 PM EDT	Flash Flood Watch	AKQ	Accomack, Greensville, James City, Northampton, Southampton, Surry and 10 more	48 hr
Sep 1, 4:17 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	43 min
Sep 1, 4:47 PM EDT	Beach Hazards Statement	AKQ	Accomack, Northampton, City of Virginia Beach	27 hr
Sep 1, 5:02 PM EDT	Tropical Storm Watch	AKQ	Accomack, Gloucester, James City, Lancaster, Mathews, Middlesex and 10 more	19 hr
Sep 1, 2:13 PM EDT	Special Weather Statement	AKQ	Gates, Hertford	47 min
Sep 1, 3:15 PM EDT	Special Weather Statement	AKQ	Camden	60 min
Sep 1, 3:17 PM EDT	Special Weather Statement	AKQ	Bertie, Chowan, Pasquotank, Perquimans	58 min
Sep 1, 4:11 PM EDT	Special Weather Statement	AKQ	Camden, Currituck, Pasquotank, Perquimans	49 min
Sep 1, 5:53 PM EDT	Special Weather Statement	AKQ	Camden, Pasquotank, Perquimans	52 min
Sep 1, 6:00 PM EDT	Special Weather Statement	AKQ	Camden, Pasquotank, Perquimans	45 min
Sep 1, 6:01 PM EDT	Special Weather Statement	AKQ	Bertie	44 min
Sep 1, 8:22 AM EDT	Special Weather Statement	AKQ	Worcester	38 min
Sep 1, 10:10 AM EDT	Special Weather Statement	AKQ	Dorchester	50 min
Sep 1, 11:28 AM EDT	Special Weather Statement	AKQ	Somerset, Worcester	47 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.