Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Wakefield, VA

July 20, 2012Sussex County, Virginia

NWS Wakefield, VA issued this special weather statement at Jul 20, 2012, 4:03 PM EDT for Sussex County, Virginia. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 20, 2012, 4:03 PM EDT (20:03 UTC)
Expired: Jul 20, 2012, 4:45 PM EDT
In force: 42 min
Issued by: NWS Wakefield, VA

County Sussex County, VA

The radar

The Norfolk radar (KAKQ), 12 km from the middle of the area, began a volume at 20:07 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.1 hours before the alert went out and 229 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: 37 J/kg
Mixed-layer CIN: -166 J/kg
Mixed-layer LCL: 673 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 20, 3:36 PM EDT, 27 minutes earlier.

Area forecast discussion, Jul 20, 3:36 PM EDT, 27 minutes before

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Hazardous weather outlook, Jul 20, 1:53 PM EDT, 2 hours 10 minutes before

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In the hours before

Special weather statement, Jul 20, 2:24 PM EDT, 1 hour 39 minutes before

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Special weather statement, Jul 20, 2:34 PM EDT, 1 hour 29 minutes before

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Special weather statement, Jul 20, 3:22 PM EDT, 41 minutes before

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Special weather statement, Jul 20, 4:03 PM EDT, 0 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 19, 11:15 PM EDT	Special Weather Statement	AKQ	Accomack	60 min
Jul 20, 4:34 AM EDT	Small Craft Advisory	AKQ		44 hr
Jul 20, 2:24 PM EDT	Special Weather Statement	AKQ	Dinwiddie	66 min
Jul 20, 3:22 PM EDT	Special Weather Statement	AKQ	Sussex	38 min
Jul 20, 4:36 PM EDT	Special Weather Statement	AKQ	City of Franklin	54 min
Jul 20, 5:09 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	51 min
Jul 20, 5:25 PM EDT	Areal Flood Advisory	AKQ	City of Chesapeake, City of Virginia Beach	2 hr
Jul 20, 5:30 PM EDT	Special Weather Statement	AKQ	City of Chesapeake, City of Suffolk	60 min
Jul 20, 5:51 PM EDT	Special Weather Statement	AKQ	Lunenburg, Mecklenburg	54 min
Jul 20, 6:11 PM EDT	Special Weather Statement	AKQ	City of Chesapeake, City of Virginia Beach	64 min
Jul 20, 6:39 PM EDT	Special Weather Statement	AKQ	Brunswick, Greensville, City of Emporia	66 min
Jul 20, 7:34 PM EDT	Special Weather Statement	AKQ	Greensville, Sussex, City of Emporia	56 min
Jul 20, 7:46 PM EDT	Special Weather Statement	AKQ	Dinwiddie, Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg	59 min
Jul 20, 2:34 PM EDT	Special Weather Statement	AKQ	Washington	26 min
Jul 20, 5:18 PM EDT	Special Weather Statement	AKQ	Hertford	42 min
Jul 20, 5:54 PM EDT	Special Weather Statement	AKQ	Gates, Hertford	66 min
Jul 20, 6:17 PM EDT	Special Weather Statement	AKQ	Gates	43 min
Jul 20, 7:17 PM EDT	Special Weather Statement	AKQ	Currituck	43 min
Jul 20, 7:57 PM EDT	Special Weather Statement	AKQ	Hertford, Northampton	63 min
Jul 19, 11:54 PM EDT	Special Weather Statement	AKQ	Dorchester	51 min

Nearby

Special Weather Statements in Virginia, 2012 Every special weather statement in 2012

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.