Alert archive / West Virginia / Special Weather Statements in 2018

Special Weather Statement, NWS Blacksburg, VA

September 8, 2018Greenbrier County, Summers County, West Virginia

NWS Blacksburg, VA issued this special weather statement at Sep 8, 2018, 12:17 AM EDT for Greenbrier County, Summers County, West Virginia. It was in force for 58 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: Sep 8, 2018, 12:17 AM EDT (04:17 UTC)
Expired: Sep 8, 2018, 1:15 AM EDT
In force: 58 min
Issued by: NWS Blacksburg, VA

Counties Greenbrier County, WV, Summers County, WV

The radar

The Charleston,WV radar (KRLX), 97 km from the middle of the area, began a volume at 04:18 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, 4.3 hours before the alert went out and 219 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: 1957 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1279 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: -3 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 Sep 7, 7:21 PM EDT, 4 hours 56 minutes earlier.

Area forecast discussion, Sep 7, 7:21 PM EDT, 4 hours 56 minutes before

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Hazardous weather outlook, Sep 7, 9:26 PM EDT, 2 hours 51 minutes before

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In the hours before

Special weather statement, Sep 7, 6:31 PM EDT, 5 hours 46 minutes before

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Special weather statement, Sep 7, 7:18 PM EDT, 4 hours 59 minutes before

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Special weather statement, Sep 8, 12:17 AM 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
Sep 8, 12:50 AM EDT	Special Weather Statement	RNK	Carroll	55 min
Sep 8, 1:25 AM EDT	Special Weather Statement	RNK	Carroll, Henry, Patrick, Pittsylvania, City of Danville, City of Galax and 1 more	65 min
Sep 8, 2:16 AM EDT	Flash Flood Warning	RNK	Carroll, Patrick	3 hr
Sep 8, 2:53 AM EDT	Special Weather Statement	RNK	Henry, City of Danville, City of Martinsville	67 min
Sep 8, 3:15 AM EDT	Special Weather Statement	RNK	Alleghany, Bath	75 min
Sep 8, 5:02 AM EDT	Special Weather Statement	RNK	Rockbridge, City of Buena Vista, City of Lexington	58 min
Sep 8, 2:47 PM EDT	Flash Flood Warning	RNK	Grayson, Smyth	4 hr
Sep 8, 5:14 PM EDT	Special Weather Statement	RNK	Botetourt	16 min
Sep 8, 6:05 PM EDT	Special Weather Statement	RNK	Caswell	25 min
Sep 8, 1:15 AM EDT	Areal Flood Advisory	RNK	Greenbrier, Summers	3 hr
Sep 8, 1:45 AM EDT	Flash Flood Warning	RNK	Greenbrier	3 hr

Nearby

Special Weather Statements in West Virginia, 2018 Every special weather statement in 2018

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.