Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Wakefield, VA

March 20, 2012City of Chesapeake, Virginia

NWS Wakefield, VA issued this special weather statement at Mar 20, 2012, 3:13 PM EDT for City of Chesapeake, Virginia. It was in force for 62 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: Mar 20, 2012, 3:13 PM EDT (19:13 UTC)
Expired: Mar 20, 2012, 4:15 PM EDT
In force: 62 min
Issued by: NWS Wakefield, VA

County City of Chesapeake, VA

The radar

The Norfolk radar (KAKQ), 76 km from the middle of the area, began a volume at 19:17 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

Newport, NC (KMHX), launched 12:00Z, 7.2 hours before the alert went out and 199 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: 500 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 666 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 56 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 Mar 20, 1:52 PM EDT, 1 hour 21 minutes earlier.

Area forecast discussion, Mar 20, 1:52 PM EDT, 1 hour 21 minutes before

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Hazardous weather outlook, Mar 20, 11:46 AM EDT, 3 hours 27 minutes before

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In the hours before

Special weather statement, Mar 20, 9:58 AM EDT, 5 hours 15 minutes before

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Special weather statement, Mar 20, 10:00 AM EDT, 5 hours 13 minutes before

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Special weather statement, Mar 20, 3:13 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
Mar 20, 2:06 AM EDT	Special Weather Statement	AKQ	Mecklenburg	54 min
Mar 20, 5:15 AM EDT	Dense Fog Advisory	AKQ	Caroline, Charles City, Dinwiddie, Gloucester, James City, Lancaster and 14 more	4 hr
Mar 20, 4:27 PM EDT	Special Weather Statement	AKQ	Lunenburg, Nottoway	63 min
Mar 20, 5:16 PM EDT	Special Weather Statement	AKQ	City of Franklin	44 min
Mar 20, 5:24 PM EDT	Special Weather Statement	AKQ	Amelia	36 min
Mar 20, 5:39 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, Southampton, City of Franklin, City of Suffolk	41 min
Mar 20, 7:08 PM EDT	Special Weather Statement	AKQ	Prince Edward	52 min
Mar 20, 7:10 PM EDT	Special Weather Statement	AKQ	Lunenburg	35 min
Mar 20, 7:54 PM EDT	Special Weather Statement	AKQ	Brunswick	66 min
Mar 20, 3:44 PM EDT	Special Weather Statement	AKQ	Pasquotank, Perquimans	61 min
Mar 20, 4:00 PM EDT	Special Weather Statement	AKQ	Chowan	30 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.