Alert archive / West Virginia / Special Weather Statements in 2015

Special Weather Statement, NWS Charleston, WV

February 21, 201520 counties in West Virginia; Lawrence County, Kentucky; Buchanan County, Dickenson County, Virginia

NWS Charleston, WV issued this special weather statement at Feb 21, 2015, 10:44 PM EST for 20 counties in West Virginia; Lawrence County, Kentucky; Buchanan County, Dickenson County, Virginia. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Feb 21, 2015, 10:44 PM EST (03:44 UTC)
Expired: Feb 22, 2015, 4:30 AM EST
In force: 6 hr
Issued by: NWS Charleston, WV

All 23 counties

Lawrence County, KY, Buchanan County, VA, Dickenson County, VA, Boone County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Fayette County, WV, Gilmer County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Logan County, WV, McDowell County, WV, Mingo County, WV, Nicholas County, WV, Putnam County, WV, Raleigh County, WV, Ritchie County, WV, Roane County, WV, Wayne County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 34 km from the middle of the area, began a volume at 03:47 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.7 hours before the alert went out and 224 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 464 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 104 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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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 Charleston, WV wrote its last area forecast discussion before this special weather statement went out at Feb 21, 7:21 PM EST, 3 hours 23 minutes earlier.

Area forecast discussion, Feb 21, 7:21 PM EST, 3 hours 23 minutes before

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Hazardous weather outlook, Feb 21, 7:09 PM EST, 3 hours 35 minutes before

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In the hours before

Local storm report, Feb 21, 9:10 PM EST, 1 hour 34 minutes before

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Local storm report, Feb 21, 9:17 PM EST, 1 hour 27 minutes before

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Local storm report, Feb 21, 9:27 PM EST, 1 hour 17 minutes before

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Local storm report, Feb 21, 10:03 PM EST, 41 minutes before

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Local storm report, Feb 21, 10:04 PM EST, 40 minutes before

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Special weather statement, Feb 21, 10:44 PM EST, 0 minutes before

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The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 21, 8:27 PM EST	Special Weather Statement	RLX	Boone, Braxton, Cabell, Calhoun, Clay, Doddridge and 19 more	3 hr
Feb 22, 9:28 AM EST	Areal Flood Warning	RLX	Barbour, Boone, Braxton, Cabell, Calhoun, Clay and 25 more	6 hr
Feb 22, 6:51 PM EST	Wind Chill Advisory	RLX	Perry	16 hr

Nearby

Special Weather Statements in West Virginia, 2015 Special Weather Statements in Virginia, 2015 Special Weather Statements in Kentucky, 2015 Every special weather statement in 2015

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.