Alert archive / Virginia / Special Weather Statements in 2011

Special Weather Statement, NWS Wakefield, VA

September 6, 20116 counties in Virginia

NWS Wakefield, VA issued this special weather statement at Sep 6, 2011, 5:39 PM EDT for 6 counties in Virginia. It was in force for 51 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: Sep 6, 2011, 5:39 PM EDT (21:39 UTC)
Expired: Sep 6, 2011, 6:30 PM EDT
In force: 51 min
Issued by: NWS Wakefield, VA

Counties City of Colonial Heights, VA, City of Hopewell, VA, City of Petersburg, VA, Henrico County, VA, Prince George County, VA, Sussex County, VA

The radar

The Norfolk radar (KAKQ), 41 km from the middle of the area, began a volume at 21:38 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

Roanoke, VA (KRNK), launched 12:00Z, 9.7 hours before the alert went out and 189 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: 3 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 458 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 451 m²/s²
0-3 km storm-relative helicity: 664 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Sep 6, 5:06 PM EDT, 33 minutes earlier.

Area forecast discussion, Sep 6, 5:06 PM EDT, 33 minutes before

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Hazardous weather outlook, Sep 6, 3:27 PM EDT, 2 hours 12 minutes before

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In the hours before

Special weather statement, Sep 6, 4:50 PM EDT, 49 minutes before

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Special weather statement, Sep 6, 4:53 PM EDT, 46 minutes before

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Special weather statement, Sep 6, 5:00 PM EDT, 39 minutes before

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Special weather statement, Sep 6, 5:01 PM EDT, 38 minutes before

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Special weather statement, Sep 6, 5:27 PM EDT, 12 minutes before

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Special weather statement, Sep 6, 5:39 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
Sep 5, 8:29 PM EDT	Special Weather Statement	AKQ	Cumberland, Goochland, Powhatan	46 min
Sep 5, 10:58 PM EDT	Special Weather Statement	AKQ	Fluvanna	62 min
Sep 6, 12:16 AM EDT	Flash Flood Warning	AKQ	Fluvanna, Louisa	3 hr
Sep 6, 5:42 AM EDT	Tornado Warning	AKQ	Lunenburg, Mecklenburg	33 min
Sep 6, 6:06 AM EDT	Tornado Warning	AKQ	Mecklenburg	39 min
Sep 6, 6:12 AM EDT	Tornado Warning	AKQ	Lunenburg, Mecklenburg, Nottoway	16 min
Sep 6, 6:41 AM EDT	Tornado Warning	AKQ	Lunenburg, Mecklenburg	16 min
Sep 6, 8:26 AM EDT	Special Weather Statement	AKQ	Mecklenburg	64 min
Sep 6, 9:34 AM EDT	Special Weather Statement	AKQ	Lunenburg	61 min
Sep 6, 10:28 AM EDT	Special Weather Statement	AKQ	Lunenburg, Mecklenburg	62 min
Sep 6, 11:29 AM EDT	Special Weather Statement	AKQ	Brunswick	61 min
Sep 6, 12:46 PM EDT	Special Weather Statement	AKQ	Mecklenburg	59 min
Sep 6, 1:47 PM EDT	Special Weather Statement	AKQ	Southampton, Sussex, City of Franklin	43 min
Sep 6, 2:31 PM EDT	Special Weather Statement	AKQ	Charles City, Isle of Wight, James City, New Kent, Prince George, Southampton and 4 more	44 min
Sep 6, 2:33 PM EDT	Special Weather Statement	AKQ	Southampton, City of Franklin	42 min
Sep 6, 2:54 PM EDT	Special Weather Statement	AKQ	Lunenburg, Mecklenburg	36 min
Sep 6, 3:15 PM EDT	Special Weather Statement	AKQ	Gloucester, Isle of Wight, York, City of Newport News, City of Williamsburg	45 min
Sep 6, 3:56 PM EDT	Special Weather Statement	AKQ	Gloucester, Lancaster, Mathews, Middlesex, Northumberland, York and 5 more	49 min
Sep 6, 4:15 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Greensville, Lunenburg, Mecklenburg, City of Emporia	45 min
Sep 6, 5:00 PM EDT	Special Weather Statement	AKQ	Amelia, Chesterfield, Dinwiddie, Greensville, Nottoway, Prince George and 3 more	45 min
Sep 6, 5:01 PM EDT	Special Weather Statement	AKQ	Accomack, Northampton	44 min
Sep 6, 5:27 PM EDT	Special Weather Statement	AKQ	Southampton	63 min
Sep 6, 5:55 PM EDT	Special Weather Statement	AKQ	Brunswick, Greensville, City of Emporia	35 min
Sep 6, 6:19 PM EDT	Special Weather Statement	AKQ	Charles City, Henrico, King William, New Kent, Prince George, Surry and 1 more	56 min
Sep 6, 6:51 PM EDT	Special Weather Statement	AKQ	Southampton, City of Franklin	39 min
Sep 6, 6:56 PM EDT	Special Weather Statement	AKQ	Isle of Wight	19 min
Sep 6, 7:12 PM EDT	Special Weather Statement	AKQ	Essex, Gloucester, Isle of Wight, James City, King and Queen, Middlesex and 9 more	48 min
Sep 6, 7:30 PM EDT	Special Weather Statement	AKQ	Greensville, Southampton, Sussex, City of Emporia, City of Franklin	45 min
Sep 6, 7:48 PM EDT	Special Marine Warning	AKQ		87 min
Sep 6, 2:10 PM EDT	Special Weather Statement	AKQ	Hertford	20 min
Sep 6, 4:53 PM EDT	Special Weather Statement	AKQ	Hertford	37 min
Sep 6, 4:50 PM EDT	Special Weather Statement	AKQ	Dorchester	55 min
Sep 6, 5:47 PM EDT	Special Weather Statement	AKQ	Somerset, Wicomico	58 min

Nearby

Special Weather Statements in Virginia, 2011 Every special weather statement in 2011

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.