Alert archive / North Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Blacksburg, VA

August 16, 2017Wilkes County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Aug 16, 2017, 4:01 PM EDT for Wilkes County, North Carolina. It was in force for 59 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 16, 2017, 4:01 PM EDT (20:01 UTC)
Expired: Aug 16, 2017, 5:00 PM EDT
In force: 59 min
Issued by: NWS Blacksburg, VA

County Wilkes County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.0 hours before the alert went out and 99 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: 197 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 934 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Aug 16, 3:20 PM EDT, 41 minutes earlier.

Area forecast discussion, Aug 16, 3:20 PM EDT, 41 minutes before

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Hazardous weather outlook, Aug 16, 3:15 PM EDT, 46 minutes before

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In the hours before

Special weather statement, Aug 16, 3:02 PM EDT, 59 minutes before

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Special weather statement, Aug 16, 4:01 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
Aug 16, 3:02 PM EDT	Special Weather Statement	RNK	Wilkes	58 min
Aug 16, 4:05 PM EDT	Special Weather Statement	RNK	Alleghany	55 min
Aug 16, 4:40 PM EDT	Special Weather Statement	RNK	Caldwell	65 min
Aug 16, 4:48 PM EDT	Special Weather Statement	RNK	Stokes	57 min
Aug 16, 4:55 PM EDT	Special Weather Statement	RNK	Ashe	50 min

Nearby

Special Weather Statements in North Carolina, 2017 Every special weather statement in 2017

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.