Alert archive / West Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Charleston, WV

October 15, 20176 counties in West Virginia

NWS Charleston, WV issued this special weather statement at Oct 15, 2017, 7:45 PM EDT for 6 counties in 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: Oct 15, 2017, 7:45 PM EDT (23:45 UTC)
Expired: Oct 15, 2017, 8:45 PM EDT
In force: 60 min
Issued by: NWS Charleston, WV

Counties Barbour County, WV, Braxton County, WV, Gilmer County, WV, Lewis County, WV, Taylor County, WV, Upshur County, WV

The radar

The Charleston,WV radar (KRLX), 150 km from the middle of the area, began a volume at 23:45 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

Pittsburgh, PA (KAGC), launched 12:00Z, 11.8 hours before the alert went out and 155 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: 1178 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 225 m²/s²
0-3 km storm-relative helicity: 216 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 Oct 15, 3:49 PM EDT, 3 hours 56 minutes earlier.

Area forecast discussion, Oct 15, 3:49 PM EDT, 3 hours 56 minutes before

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Hazardous weather outlook, Oct 15, 2:52 PM EDT, 4 hours 53 minutes before

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In the hours before

Special weather statement, Oct 15, 4:09 PM EDT, 3 hours 36 minutes before

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Special weather statement, Oct 15, 5:01 PM EDT, 2 hours 44 minutes before

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Special weather statement, Oct 15, 6:04 PM EDT, 1 hour 41 minutes before

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Special weather statement, Oct 15, 7:36 PM EDT, 9 minutes before

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Special weather statement, Oct 15, 7:45 PM EDT, 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
Oct 15, 6:04 PM EDT	Special Weather Statement	RLX	Jackson, Mason, Ritchie, Wirt, Wood	56 min
Oct 15, 7:36 PM EDT	Special Weather Statement	RLX	Boone, Clay, Kanawha, Lincoln, Logan	54 min
Oct 15, 4:09 PM EDT	Special Weather Statement	RLX	Morgan, Perry, Vinton	51 min
Oct 15, 5:01 PM EDT	Special Weather Statement	RLX	Athens, Jackson, Meigs, Washington	59 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.