Alert archive / North Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Wakefield, VA

October 19, 2011Isle of Wight County, Southampton County, City of Franklin, Virginia; 4 counties in North Carolina

NWS Wakefield, VA issued this special weather statement at Oct 19, 2011, 8:40 PM EDT for Isle of Wight County, Southampton County, City of Franklin, Virginia; 4 counties in North Carolina. It was in force for 65 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: Oct 19, 2011, 8:40 PM EDT (00:40 UTC)
Expired: Oct 19, 2011, 9:45 PM EDT
In force: 65 min
Issued by: NWS Wakefield, VA

Counties Bertie County, NC, Gates County, NC, Hertford County, NC, Northampton County, NC, City of Franklin, VA, Isle of Wight County, VA, Southampton County, VA

The radar

The Norfolk radar (KAKQ), 92 km from the middle of the area, began a volume at 00:43 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 00:00Z, 0.7 hours before the alert went out and 156 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: 255 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 622 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

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The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 19, 8:38 PM EDT	Special Marine Warning	AKQ		97 min
Oct 19, 10:19 PM EDT	Special Weather Statement	AKQ	Gloucester, Mathews, York, City of Newport News	41 min
Oct 19, 10:36 PM EDT	Special Marine Warning	AKQ		84 min
Oct 19, 11:35 PM EDT	Special Weather Statement	AKQ	City of Chesapeake, City of Norfolk, City of Portsmouth, City of Suffolk	40 min
Oct 20, 3:18 AM EDT	Gale Warning	AKQ		13 hr
Oct 19, 11:41 PM EDT	Special Weather Statement	AKQ	Somerset, Wicomico	49 min
Oct 20, 3:03 AM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	12 hr
Oct 20, 3:47 PM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	8 hr

Nearby

Special Weather Statements in North Carolina, 2011 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.