Alert archive / West Virginia / Special Weather Statements in 2011

Special Weather Statement, NWS Charleston, WV

April 28, 20119 counties in West Virginia

NWS Charleston, WV issued this special weather statement at Apr 28, 2011, 5:59 AM EDT for 9 counties in West Virginia. It was in force for 106 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 28, 2011, 5:59 AM EDT (09:59 UTC)
Expired: Apr 28, 2011, 7:45 AM EDT
In force: 106 min
Issued by: NWS Charleston, WV

Counties Barbour County, WV, Braxton County, WV, Lewis County, WV, Nicholas County, WV, Pocahontas County, WV, Randolph County, WV, Taylor County, WV, Upshur County, WV, Webster County, WV

The radar

The Charleston,WV radar (KRLX), 151 km from the middle of the area, began a volume at 10:01 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 00:00Z, 10.0 hours before the alert went out and 169 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: 372 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1272 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 335 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.0

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 28, 5:57 AM EDT, 2 minutes earlier.

Area forecast discussion, Apr 28, 5:57 AM EDT, 2 minutes before

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Hazardous weather outlook, Apr 28, 5:59 AM EDT, 0 minutes before

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In the hours before

Special weather statement, Apr 28, 12:39 AM EDT, 5 hours 20 minutes before

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Local storm report, Apr 28, 12:53 AM EDT, 5 hours 6 minutes before

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Local storm report, Apr 28, 1:04 AM EDT, 4 hours 55 minutes before

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Special weather statement, Apr 28, 3:03 AM EDT, 2 hours 56 minutes before

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Special weather statement, Apr 28, 3:10 AM EDT, 2 hours 49 minutes before

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Special weather statement, Apr 28, 5:59 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 27, 9:23 PM EDT	Special Weather Statement	RLX	Raleigh, Wyoming	52 min
Apr 27, 9:30 PM EDT	Severe Thunderstorm Warning	RLX	Fayette, Raleigh, Wyoming	60 min
Apr 27, 9:39 PM EDT	Special Weather Statement	RLX	Boone, Clay, Fayette, Kanawha, Lincoln, Logan and 6 more	111 min
Apr 27, 9:53 PM EDT	Severe Thunderstorm Warning	RLX	Braxton, Clay, Fayette, Kanawha, Nicholas	37 min
Apr 27, 10:23 PM EDT	Severe Thunderstorm Warning	RLX	McDowell, Raleigh, Wyoming	37 min
Apr 27, 10:28 PM EDT	Tornado Warning	RLX	McDowell, Raleigh, Wyoming	32 min
Apr 27, 10:34 PM EDT	Tornado Warning	RLX	Fayette, Nicholas, Pocahontas, Webster	41 min
Apr 27, 10:56 PM EDT	Severe Thunderstorm Warning	RLX	Fayette, McDowell, Raleigh, Wyoming	49 min
Apr 27, 11:15 PM EDT	Severe Thunderstorm Warning	RLX	Barbour, Pocahontas, Randolph, Webster	60 min
Apr 27, 11:50 PM EDT	Severe Thunderstorm Warning	RLX	Pocahontas	55 min
Apr 28, 12:14 AM EDT	Special Weather Statement	RLX	Boone, Cabell, Fayette, Kanawha, Lincoln, Logan and 7 more	3 hr
Apr 28, 12:32 AM EDT	Severe Thunderstorm Warning	RLX	Pocahontas, Randolph	43 min
Apr 28, 12:39 AM EDT	Special Weather Statement	RLX	Barbour, Braxton, Clay, Fayette, Lewis, Nicholas and 6 more	3 hr
Apr 28, 3:03 AM EDT	Special Weather Statement	RLX	Barbour, Pocahontas, Randolph, Upshur, Webster	3 hr
Apr 28, 7:10 PM EDT	Special Weather Statement	RLX	Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 2 more	80 min
Apr 27, 8:31 PM EDT	Tornado Warning	RLX	Buchanan, Dickenson	44 min
Apr 27, 9:47 PM EDT	Special Weather Statement	RLX	Buchanan, Dickenson	88 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.