Alert archive / West Virginia / Special Weather Statements in 2011

Special Weather Statement, NWS Charleston, WV

July 4, 2011Pocahontas County, West Virginia

NWS Charleston, WV issued this special weather statement at Jul 4, 2011, 3:39 AM EDT for Pocahontas County, West Virginia. It was in force for 81 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: Jul 4, 2011, 3:39 AM EDT (07:39 UTC)
Expired: Jul 4, 2011, 5:00 AM EDT
In force: 81 min
Issued by: NWS Charleston, WV

County Pocahontas County, WV

The radar

The Roanoke radar (KFCX), 161 km from the middle of the area, began a volume at 07:39 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, 7.7 hours before the alert went out and 218 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: 240 J/kg
Mixed-layer CIN: -167 J/kg
Mixed-layer LCL: 1652 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Jul 4, 2:32 AM EDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jul 4, 2:32 AM EDT, 1 hour 7 minutes before

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Hazardous weather outlook, Jul 4, 3:16 AM EDT, 23 minutes before

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In the hours before

Local storm report, Jul 3, 9:55 PM EDT, 5 hours 44 minutes before

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Special weather statement, Jul 3, 10:15 PM EDT, 5 hours 24 minutes before

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Local storm report, Jul 3, 11:39 PM EDT, 4 hours before

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Special weather statement, Jul 4, 12:40 AM EDT, 2 hours 59 minutes before

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Special weather statement, Jul 4, 3:39 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
Jul 3, 8:49 PM EDT	Special Weather Statement	RLX	Wayne	26 min
Jul 3, 10:15 PM EDT	Special Weather Statement	RLX	Roane	30 min
Jul 4, 12:40 AM EDT	Special Weather Statement	RLX	Pocahontas	95 min
Jul 4, 12:08 PM EDT	Special Weather Statement	RLX	Boone, Logan, McDowell, Mingo, Raleigh, Wyoming	37 min
Jul 4, 1:16 PM EDT	Special Weather Statement	RLX	Wyoming	29 min
Jul 4, 1:23 PM EDT	Severe Thunderstorm Warning	RLX	McDowell	67 min
Jul 4, 2:04 PM EDT	Severe Thunderstorm Warning	RLX	McDowell, Wyoming	26 min
Jul 4, 2:29 PM EDT	Special Weather Statement	RLX	Raleigh	31 min
Jul 3, 8:37 PM EDT	Special Weather Statement	RLX	Athens	23 min
Jul 3, 9:34 PM EDT	Flash Flood Warning	RLX	Athens, Morgan, Perry	116 min

Nearby

Special Weather Statements in West Virginia, 2011 Every special weather statement in 2011

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.