Alert archive / West Virginia / Special Weather Statements in 2019

Special Weather Statement, NWS Blacksburg, VA

August 9, 2019Mercer County, West Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 9, 2019, 6:52 PM EDT for Mercer County, West Virginia. It was in force for 53 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 9, 2019, 6:52 PM EDT (22:52 UTC)
Expired: Aug 9, 2019, 7:45 PM EDT
In force: 53 min
Issued by: NWS Blacksburg, VA

County Mercer County, WV

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 10.9 hours before the alert went out and 142 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: 127 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 146 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 9, 4:41 PM EDT, 2 hours 11 minutes earlier.

Area forecast discussion, Aug 9, 4:41 PM EDT, 2 hours 11 minutes before

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Hazardous weather outlook, Aug 9, 4:16 PM EDT, 2 hours 36 minutes before

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In the hours before

Special weather statement, Aug 9, 3:46 PM EDT, 3 hours 6 minutes before

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Special weather statement, Aug 9, 3:49 PM EDT, 3 hours 3 minutes before

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Local storm report, Aug 9, 3:58 PM EDT, 2 hours 54 minutes before

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Special weather statement, Aug 9, 5:46 PM EDT, 1 hour 6 minutes before

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Local storm report, Aug 9, 6:25 PM EDT, 27 minutes before

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Special weather statement, Aug 9, 6:52 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 9, 2:16 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Botetourt, Craig	59 min
Aug 9, 2:49 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany	56 min
Aug 9, 3:17 PM EDT	Special Weather Statement	RNK	Campbell	58 min
Aug 9, 3:38 PM EDT	Special Weather Statement	RNK	Bedford, City of Roanoke	52 min
Aug 9, 3:46 PM EDT	Special Weather Statement	RNK	Craig, Giles	59 min
Aug 9, 4:02 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Franklin, Pittsylvania	58 min
Aug 9, 4:03 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles	38 min
Aug 9, 4:49 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	56 min
Aug 9, 5:31 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles	33 min
Aug 9, 5:46 PM EDT	Special Weather Statement	RNK	Halifax	29 min
Aug 9, 5:47 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	26 min
Aug 9, 7:28 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles, Pulaski	62 min
Aug 8, 11:27 PM EDT	Special Weather Statement	RNK	Greenbrier	63 min
Aug 9, 1:35 PM EDT	Special Weather Statement	RNK	Greenbrier	25 min
Aug 9, 3:49 PM EDT	Special Weather Statement	RNK	Greenbrier	56 min
Aug 9, 4:38 PM EDT	Severe Thunderstorm Warning	RNK	Greenbrier, Summers	67 min

Nearby

Special Weather Statements in West Virginia, 2019 Every special weather statement in 2019

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.