Alert archive / West Virginia / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 52, NWS Charleston, WV

May 27, 2010Pocahontas County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at May 27, 2010, 3:04 PM EDT for Pocahontas County, West Virginia. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 27, 2010, 3:04 PM EDT (19:04 UTC)
Expired: May 27, 2010, 3:45 PM EDT
In force: 41 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

County Pocahontas County, WV

The radar

The Roanoke radar (KFCX), 147 km from the middle of the area, began a volume at 19:07 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, 7.1 hours before the alert went out and 134 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: 538 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1055 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at May 27, 1:34 PM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, May 27, 1:34 PM EDT, 1 hour 30 minutes before

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Hazardous weather outlook, May 27, 3:56 AM EDT, 11 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
356 AM EDT THU MAY 27 2010

KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011-
013>020-024>040-046-047-280800-
GREENUP-CARTER-BOYD-LAWRENCE KY-PERRY-MORGAN-ATHENS-WASHINGTON-
JACKSON OH-VINTON-MEIGS-GALLIA-LAWRENCE OH-DICKENSON-BUCHANAN-WAYNE-
CABELL-MASON-JACKSON WV-WOOD-PLEASANTS-TYLER-LINCOLN-PUTNAM-KANAWHA-
ROANE-WIRT-CALHOUN-RITCHIE-DODDRIDGE-MINGO-LOGAN-BOONE-CLAY-BRAXTON-
GILMER-LEWIS-HARRISON-TAYLOR-MCDOWELL-WYOMING-RALEIGH-FAYETTE-
NICHOLAS-WEBSTER-UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH-
356 AM EDT THU MAY 27 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST
KENTUCKY...SOUTHEAST OHIO...SOUTHWEST VIRGINIA AND WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, May 27, 1:08 PM EDT, 1 hour 56 minutes before

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Special weather statement, May 27, 2:00 PM EDT, 1 hour 4 minutes before

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Local storm report, May 27, 2:33 PM EDT, 31 minutes before

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Local storm report, May 27, 2:43 PM EDT, 21 minutes before

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Local storm report, May 27, 2:47 PM EDT, 17 minutes before

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Special weather statement, May 27, 2:59 PM EDT, 5 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
May 27, 12:07 PM EDT	Flash Flood Warning	RLX	Pocahontas	4 hr
May 27, 1:08 PM EDT	Special Weather Statement	RLX	Pocahontas	2 hr
May 27, 2:00 PM EDT	Special Weather Statement	RLX	Pocahontas	3 hr
May 27, 2:04 PM EDT	Severe Thunderstorm Warning	RLX	Pocahontas, Randolph	38 min
May 27, 2:12 PM EDT	Severe Thunderstorm Warning	RLX	Pocahontas	31 min
May 27, 2:59 PM EDT	Special Weather Statement	RLX	Pocahontas	61 min
May 27, 3:53 PM EDT	Special Weather Statement	RLX	Nicholas, Pocahontas, Webster	82 min
May 27, 4:42 PM EDT	Special Weather Statement	RLX	Webster	33 min
May 27, 5:28 PM EDT	Special Weather Statement	RLX	Pocahontas	77 min
May 27, 6:38 PM EDT	Special Weather Statement	RLX	Barbour	52 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2010 Every severe thunderstorm warning in 2010

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.