Alert archive / West Virginia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 138, NWS Charleston, WV

July 25, 2009Jackson County, Kanawha County, Roane County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Jul 25, 2009, 3:28 PM EDT for Jackson County, Kanawha County, Roane 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 counties it named.

The facts

Issued: Jul 25, 2009, 3:28 PM EDT (19:28 UTC)
Expired: Jul 25, 2009, 4:00 PM EDT
In force: 32 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

Counties Jackson County, WV, Kanawha County, WV, Roane County, WV

The radar

The Charleston,WV radar (KRLX), 40 km from the middle of the area, began a volume at 19:29 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, 7.5 hours before the alert went out and 238 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: 82 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 919 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 131 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 Jul 25, 3:18 PM EDT, 10 minutes earlier.

Area forecast discussion, Jul 25, 3:18 PM EDT, 10 minutes before

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Hazardous weather outlook, Jul 25, 4:08 AM EDT, 11 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
408 AM EDT SAT JUL 25 2009

KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>011-013>020-027>032-
038>040-047-260815-
GREENUP-CARTER-BOYD-LAWRENCE KY-PERRY-MORGAN-ATHENS-WASHINGTON-
JACKSON OH-VINTON-MEIGS-GALLIA-LAWRENCE OH-WAYNE-CABELL-MASON-
JACKSON WV-WOOD-PLEASANTS-TYLER-LINCOLN-PUTNAM-KANAWHA-ROANE-WIRT-
CALHOUN-RITCHIE-DODDRIDGE-CLAY-BRAXTON-GILMER-LEWIS-HARRISON-TAYLOR-
WEBSTER-UPSHUR-BARBOUR-RANDOLPH-
408 AM EDT SAT JUL 25 2009

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

.DAY ONE...TODAY AND TONIGHT.

GUSTY SHOWERS AND THUNDERSTORMS ARE POSSIBLE LATE SATURDAY
AFTERNOON OR SATURDAY EVENING...AHEAD OF AN ADVANCING COLD FRONT.
DAMAGING WIND GUSTS WILL BE THE PRIMARY THREAT WITH THE STRONGER
STORMS...ALTHOUGH LARGE HAIL IS ALSO A POSSIBILITY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

VAZ003-004-WVZ024>026-033>037-046-260815-
DICKENSON-BUCHANAN-MINGO-LOGAN-BOONE-MCDOWELL-WYOMING-RALEIGH-
FAYETTE-NICHOLAS-POCAHONTAS-
408 AM EDT SAT JUL 25 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST VIRGINIA AND WEST
VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 25, 2:46 PM EDT, 42 minutes before

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Local storm report, Jul 25, 2:52 PM EDT, 36 minutes before

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Local storm report, Jul 25, 2:53 PM EDT, 35 minutes before

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Local storm report, Jul 25, 2:56 PM EDT, 32 minutes before

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Special weather statement, Jul 25, 3:02 PM EDT, 26 minutes before

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Local storm report, Jul 25, 3:19 PM EDT, 9 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 25, 2:29 PM EDT	Severe Thunderstorm Warning	RLX	Cabell, Kanawha, Mason, Putnam	31 min
Jul 25, 2:57 PM EDT	Severe Thunderstorm Warning	RLX	Cabell, Kanawha, Lincoln, Mason, Putnam	48 min
Jul 25, 3:45 PM EDT	Severe Thunderstorm Warning	RLX	Clay, Kanawha	30 min
Jul 25, 4:34 PM EDT	Severe Thunderstorm Warning	RLX	Kanawha, Lincoln, Putnam	26 min
Jul 25, 4:53 PM EDT	Severe Thunderstorm Warning	RLX	Nicholas, Webster	37 min
Jul 25, 5:07 PM EDT	Severe Thunderstorm Warning	RLX	Clay, Kanawha	23 min
Jul 25, 5:29 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Logan	46 min
Jul 25, 5:43 PM EDT	Severe Thunderstorm Warning	RLX	Clay, Nicholas	32 min
Jul 25, 6:32 PM EDT	Severe Thunderstorm Warning	RLX	Fayette, Nicholas	28 min
Jul 25, 6:52 PM EDT	Severe Thunderstorm Warning	RLX	Fayette, Raleigh	38 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2009 Every severe thunderstorm warning in 2009

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.