Alert archive / Virginia / Special Weather Statements in 2014

Special Weather Statement, NWS Blacksburg, VA

March 29, 2014Campbell County, Pittsylvania County, City of Danville, Virginia; Caswell County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Mar 29, 2014, 10:59 PM EDT for Campbell County, Pittsylvania County, City of Danville, Virginia; Caswell County, North Carolina. It was in force for 31 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 29, 2014, 10:59 PM EDT (02:59 UTC)
Expired: Mar 29, 2014, 11:30 PM EDT
In force: 31 min
Issued by: NWS Blacksburg, VA

Counties Caswell County, NC, Campbell County, VA, City of Danville, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 90 km from the middle of the area, began a volume at 03:00 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 00:00Z, 3.0 hours before the alert went out and 89 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: 33 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 777 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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 Blacksburg, VA wrote its last area forecast discussion before this special weather statement went out at Mar 29, 9:29 PM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, Mar 29, 9:29 PM EDT, 1 hour 30 minutes before

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Hazardous weather outlook, Mar 29, 9:47 PM EDT, 1 hour 12 minutes before

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In the hours before

Special weather statement, Mar 29, 6:57 PM EDT, 4 hours 2 minutes before

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Special weather statement, Mar 29, 7:50 PM EDT, 3 hours 9 minutes before

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Special weather statement, Mar 29, 10:59 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 8:34 PM EDT	Areal Flood Advisory	RNK	Mercer, Summers	116 min

Nearby

Special Weather Statements in Virginia, 2014 Special Weather Statements in North Carolina, 2014 Every special weather statement in 2014

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.