Alert archive / West Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Charleston, WV

April 29, 2017Barbour County, Taylor County, West Virginia

NWS Charleston, WV issued this special weather statement at Apr 29, 2017, 5:31 AM EDT for Barbour County, Taylor County, West Virginia. It was in force for 29 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: Apr 29, 2017, 5:31 AM EDT (09:31 UTC)
Expired: Apr 29, 2017, 6:00 AM EDT
In force: 29 min
Issued by: NWS Charleston, WV

Counties Barbour County, WV, Taylor County, WV

The radar

The Pittsburgh radar (KPBZ), 153 km from the middle of the area, began a volume at 09:32 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, 9.5 hours before the alert went out and 220 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: 145 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1741 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 318 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Apr 29, 3:52 AM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Apr 29, 3:52 AM EDT, 1 hour 39 minutes before

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Hazardous weather outlook, Apr 29, 3:33 AM EDT, 1 hour 58 minutes before

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In the hours before

Special weather statement, Apr 29, 4:01 AM EDT, 1 hour 30 minutes before

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Local storm report, Apr 29, 4:25 AM EDT, 1 hour 6 minutes before

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Special weather statement, Apr 29, 4:46 AM EDT, 45 minutes before

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Special weather statement, Apr 29, 4:55 AM EDT, 36 minutes before

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Local storm report, Apr 29, 5:11 AM EDT, 20 minutes before

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Special weather statement, Apr 29, 5:31 AM 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
Apr 28, 11:55 PM EDT	Severe Thunderstorm Warning	RLX	Mason	35 min
Apr 29, 12:28 AM EDT	Severe Thunderstorm Warning	RLX	Calhoun, Jackson, Mason, Ritchie, Roane, Wirt and 1 more	32 min
Apr 29, 2:14 AM EDT	Special Weather Statement	RLX	Jackson, Mason	46 min
Apr 29, 2:34 AM EDT	Special Weather Statement	RLX	Randolph	26 min
Apr 29, 3:10 AM EDT	Severe Thunderstorm Warning	RLX	Cabell, Wayne	50 min
Apr 29, 3:22 AM EDT	Flash Flood Watch	RLX	Pleasants, Tyler, Wood	10 hr
Apr 29, 4:01 AM EDT	Special Weather Statement	RLX	Jackson, Mason	44 min
Apr 29, 4:46 AM EDT	Special Weather Statement	RLX	Calhoun, Gilmer, Roane, Wirt	29 min
Apr 29, 4:55 AM EDT	Special Weather Statement	RLX	Doddridge, Harrison	35 min
Apr 29, 7:42 PM EDT	Special Weather Statement	RLX	Boone	33 min
Apr 28, 11:45 PM EDT	Special Weather Statement	RLX	Gallia, Jackson	30 min
Apr 29, 1:45 AM EDT	Special Weather Statement	RLX	Gallia	30 min
Apr 29, 3:03 AM EDT	Severe Thunderstorm Warning	RLX	Gallia, Jackson, Lawrence, Vinton	57 min
Apr 29, 3:29 AM EDT	Special Weather Statement	RLX	Athens, Vinton	31 min
Apr 29, 10:32 AM EDT	Special Weather Statement	RLX	Perry	43 min
Apr 29, 11:15 AM EDT	Special Weather Statement	RLX	Morgan	30 min
Apr 29, 1:03 AM EDT	Severe Thunderstorm Warning	RLX	Greenup	27 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.