Alert archive / West Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Charleston, WV

March 7, 2017Pocahontas County, Randolph County, Webster County, West Virginia

NWS Charleston, WV issued this special weather statement at Mar 7, 2017, 11:45 PM EST for Pocahontas County, Randolph County, Webster County, West Virginia. It was in force for 60 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: Mar 7, 2017, 11:45 PM EST (04:45 UTC)
Expired: Mar 8, 2017, 12:45 AM EST
In force: 60 min
Issued by: NWS Charleston, WV

Counties Pocahontas County, WV, Randolph County, WV, Webster County, WV

The radar

The Charleston,WV radar (KRLX), 140 km from the middle of the area, began a volume at 04:48 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 4.8 hours before the alert went out and 244 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: 1012 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 276 m²/s²
0-3 km storm-relative helicity: 282 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 Charleston, WV wrote its last area forecast discussion before this special weather statement went out at Mar 7, 7:20 PM EST, 4 hours 25 minutes earlier.

Area forecast discussion, Mar 7, 7:20 PM EST, 4 hours 25 minutes before

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Hazardous weather outlook, Mar 7, 1:05 PM EST, 10 hours 40 minutes before

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In the hours before

Special weather statement, Mar 7, 10:14 PM EST, 1 hour 31 minutes before

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Special weather statement, Mar 7, 10:29 PM EST, 1 hour 16 minutes before

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Special weather statement, Mar 7, 10:55 PM EST, 50 minutes before

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Special weather statement, Mar 7, 11:45 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
Mar 7, 10:14 PM EST	Special Weather Statement	RLX	Boone, Kanawha	31 min
Mar 7, 10:29 PM EST	Special Weather Statement	RLX	Clay, Kanawha	31 min
Mar 7, 10:55 PM EST	Special Weather Statement	RLX	Braxton, Clay, Fayette, Nicholas, Webster	50 min

Nearby

Special Weather Statements in West Virginia, 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; radar from the NEXRAD Level II archive.