Alert archive / Virginia / Special Weather Statements in 2014

Special Weather Statement, NWS Blacksburg, VA

August 23, 2014Bedford County, Franklin County, City of Roanoke, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 23, 2014, 5:29 PM EDT for Bedford County, Franklin County, City of Roanoke, Virginia. It was in force for 61 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: Aug 23, 2014, 5:29 PM EDT (21:29 UTC)
Expired: Aug 23, 2014, 6:30 PM EDT
In force: 61 min
Issued by: NWS Blacksburg, VA

Counties Bedford County, VA, City of Roanoke, VA, Franklin County, VA

The radar

The Roanoke radar (KFCX), 67 km from the middle of the area, began a volume at 21:32 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 12:00Z, 9.5 hours before the alert went out and 123 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: 69 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1133 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 50 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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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 9:08 PM EDT	Special Weather Statement	RNK	Tazewell	37 min
Aug 23, 4:07 PM EDT	Special Weather Statement	RNK	Bedford	53 min
Aug 23, 5:58 PM EDT	Special Weather Statement	RNK	Franklin, City of Roanoke, City of Salem	62 min
Aug 23, 6:51 PM EDT	Special Weather Statement	RNK	Franklin, Henry, Patrick	54 min
Aug 23, 7:31 PM EDT	Special Weather Statement	RNK	Amherst, Botetourt, Rockbridge, City of Buena Vista, City of Lexington	59 min
Aug 23, 7:48 PM EDT	Special Weather Statement	RNK	Patrick	57 min
Aug 22, 8:27 PM EDT	Special Weather Statement	RNK	Watauga	33 min

Nearby

Special Weather Statements in Virginia, 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.