Alert archive / West Virginia / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 79, NWS Charleston, WV

June 27, 2010Fayette County, Nicholas County, Raleigh County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Jun 27, 2010, 7:18 PM EDT for Fayette County, Nicholas County, Raleigh County, West Virginia. It was in force for 27 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
Jun 27, 2010, 7:18 PM EDT (23:18 UTC)
Expired
Jun 27, 2010, 7:45 PM EDT
In force
27 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon

Counties Fayette County, WV, Nicholas County, WV, Raleigh County, WV

The radar

The Charleston,WV radar (KRLX), 67 km from the middle of the area, began a volume at 23:21 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

Pittsburgh, PA (KPIT), launched 12:00Z, 11.3 hours before the alert went out and 277 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2010-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 813 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2010-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
813 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
858 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

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 Jun 27, 5:38 PM EDT, 1 hour 40 minutes earlier.

Area forecast discussion, Jun 27, 5:38 PM EDT, 1 hour 40 minutes before
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Hazardous weather outlook, Jun 27, 2:44 PM EDT, 4 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
244 PM EDT SUN JUN 27 2010

VAZ003-004-WVZ013-015-016-018-024>040-046-047-281845-
DICKENSON-BUCHANAN-LINCOLN-KANAWHA-ROANE-CALHOUN-MINGO-LOGAN-BOONE-
CLAY-BRAXTON-GILMER-LEWIS-HARRISON-TAYLOR-MCDOWELL-WYOMING-RALEIGH-
FAYETTE-NICHOLAS-WEBSTER-UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH-
244 PM EDT SUN JUN 27 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST VIRGINIA...CENTRAL
WEST VIRGINIA...NORTHERN WEST VIRGINIA AND SOUTHERN WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

LOCAL DOWNPOURS ARE POSSIBLE IN SHOWERS AND THUNDERSTORMS. THESE
WILL BE MONITORED FOR TRAINING...AND POSSIBLE SMALL STREAM FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

ON MONDAY...LOCAL DOWNPOURS ARE STILL POSSIBLE IN SHOWERS AND
THUNDERSTORMS. THESE WILL BE MONITORED FOR TRAINING...AND POSSIBLE
SMALL STREAM FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>011-014-017-019-020-
281845-
GREENUP-CARTER-BOYD-LAWRENCE KY-PERRY-MORGAN-ATHENS-WASHINGTON-
JACKSON OH-VINTON-MEIGS-GALLIA-LAWRENCE OH-WAYNE-CABELL-MASON-
JACKSON WV-WOOD-PLEASANTS-TYLER-PUTNAM-WIRT-RITCHIE-DODDRIDGE-
244 PM EDT SUN JUN 27 2010

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

LOCAL DOWNPOURS ARE POSSIBLE IN SHOWERS AND THUNDERSTORMS. THESE
WILL BE MONITORED FOR TRAINING...AND POSSIBLE SMALL STREAM
FLOODING.

BRIEF WIND GUSTS FROM THUNDERSTORMS MAY BE STRONG ENOUGH TO PRODUCE
A SEVERE THUNDERSTORM THIS AFTERNOON AND OVERNIGHT TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

ON MONDAY...LOCAL DOWNPOURS ARE POSSIBLE IN SHOWERS AND THUNDERSTORMS.
THESE WILL BE MONITORED FOR TRAINING...AND POSSIBLE SMALL STREAM
FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jun 27, 5:18 PM EDT, 2 hours before
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Local storm report, Jun 27, 5:20 PM EDT, 1 hour 58 minutes before
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Special weather statement, Jun 27, 5:20 PM EDT, 1 hour 58 minutes before
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Local storm report, Jun 27, 5:45 PM EDT, 1 hour 33 minutes before
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Special weather statement, Jun 27, 6:14 PM EDT, 1 hour 4 minutes before
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Special weather statement, Jun 27, 7:01 PM EDT, 17 minutes before
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The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 4:37 PM EDTSevere Thunderstorm WarningRLXCabell, Wayne38 min
Jun 27, 5:20 PM EDTSpecial Weather StatementRLXBoone25 min
Jun 27, 6:14 PM EDTSpecial Weather StatementRLXRaleigh46 min
Jun 27, 7:01 PM EDTSpecial Weather StatementRLXRaleigh44 min
Jun 26, 10:55 PM EDTSpecial Weather StatementRLXPerry35 min
Jun 27, 3:43 PM EDTSpecial Weather StatementRLXGallia, Jackson, Lawrence, Perry, Vinton47 min
Jun 27, 4:25 PM EDTSpecial Weather StatementRLXBoyd35 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2010Every 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.