Alert archive / West Virginia / Special Weather Statements in 2011

Special Weather Statement, NWS Charleston, WV

April 16, 2011Pocahontas County, West Virginia

NWS Charleston, WV issued this special weather statement at Apr 16, 2011, 2:28 PM EDT for Pocahontas County, West Virginia. It was in force for 32 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 16, 2011, 2:28 PM EDT (18:28 UTC)
Expired: Apr 16, 2011, 3:00 PM EDT
In force: 32 min
Issued by: NWS Charleston, WV

County Pocahontas County, WV

The radar

The Roanoke radar (KFCX), 147 km from the middle of the area, began a volume at 18:30 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

Roanoke, VA (KRNK), launched 12:00Z, 6.5 hours before the alert went out and 126 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 480 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 747 m²/s²
0-3 km storm-relative helicity: 975 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 Apr 16, 2:13 PM EDT, 15 minutes earlier.

Area forecast discussion, Apr 16, 2:13 PM EDT, 15 minutes before

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Hazardous weather outlook, Apr 16, 3:52 AM EDT, 10 hours 36 minutes before

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In the hours before

Local storm report, Apr 16, 10:23 AM EDT, 4 hours 5 minutes before

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Special weather statement, Apr 16, 10:46 AM EDT, 3 hours 42 minutes before

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Local storm report, Apr 16, 11:36 AM EDT, 2 hours 52 minutes before

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Special weather statement, Apr 16, 1:05 PM EDT, 1 hour 23 minutes before

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Special weather statement, Apr 16, 1:24 PM EDT, 1 hour 4 minutes before

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Special weather statement, Apr 16, 2:28 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
Apr 16, 3:30 AM EDT	Special Weather Statement	RLX	Wayne	45 min
Apr 16, 7:26 AM EDT	Special Weather Statement	RLX	Cabell, Mason, Putnam	34 min
Apr 16, 8:26 AM EDT	Flash Flood Warning	RLX	Cabell, Lincoln, Logan, Mason, Mingo, Putnam and 1 more	3 hr
Apr 16, 8:57 AM EDT	Special Weather Statement	RLX	Boone, Logan, Mingo	33 min
Apr 16, 9:51 AM EDT	Special Weather Statement	RLX	Calhoun, Clay, Kanawha, Nicholas, Roane	24 min
Apr 16, 10:17 AM EDT	Special Weather Statement	RLX	Braxton, Calhoun, Clay, Doddridge, Gilmer, Pleasants and 2 more	28 min
Apr 16, 10:46 AM EDT	Special Weather Statement	RLX	Braxton, Doddridge, Harrison, Lewis, Tyler, Upshur	29 min
Apr 16, 11:03 AM EDT	Areal Flood Warning	RLX	Cabell, Lincoln, Mason, Putnam	87 min
Apr 16, 1:05 PM EDT	Special Weather Statement	RLX	Barbour	25 min
Apr 16, 1:24 PM EDT	Special Weather Statement	RLX	Webster	36 min
Apr 16, 11:39 AM EDT	River Flood Warning	RLX	Carter, Greenup	2 hr

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.