Alert archive / West Virginia / Flash Flood Watches in 2009
Flash Flood Watch 14, NWS Charleston, WV
NWS Charleston, WV issued this flash flood watch at Aug 19, 2009, 12:16 PM EDT for 4 counties in West Virginia. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Aug 19, 2009, 12:16 PM EDT (16:16 UTC)
- Expired
- Aug 19, 2009, 8:34 PM EDT
- In force
- 8 hr
- Issued by
- NWS Charleston, WV
- Flood severity
- None
Counties Logan County, WV, McDowell County, WV, Mingo County, WV, Wyoming County, WV
The radar
The Charleston,WV radar (KRLX), 75 km from the middle of the area, began a volume at 16:17 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, 4.3 hours before the alert went out and 210 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.
- Mixed-layer CAPE
- 474 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 748 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Aug 19, 6:33 AM EDT, 5 hours 43 minutes earlier.
Area forecast discussion, Aug 19, 6:33 AM EDT, 5 hours 43 minutes before
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</html>Hazardous weather outlook, Aug 19, 4:08 AM EDT, 8 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON WV 408 AM EDT WED AUG 19 2009 KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011- 013>020-024>040-046-047-200815- 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- 408 AM EDT WED AUG 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST KENTUCKY...SOUTHEAST OHIO...SOUTHWEST VIRGINIA AND WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT. OCCASIONAL SHOWERS AND THUNDERSTORMS IN A TROPICAL AIRMASS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY DOWNPOURS TODAY. TRAINING OF THESE SHOWERS AND STORMS COULD CAUSE THE FLOODING OF SMALL CREEKS AND STREAMS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. OCCASIONAL SHOWERS AND THUNDERSTORMS IN A TROPICAL AIRMASS BE CAPABLE OF PRODUCING LOCALLY HEAVY DOWNPOURS ON THURSDAY. TRAINING OF THESE SHOWERS AND STORMS COULD CAUSE THE FLOODING OF SMALL CREEKS AND STREAMS. THIS THREAT WILL BE MONITORED FOR POSSIBLE FLASH FLOOD WATCHES. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Aug 19, 10:50 AM EDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 1050 AM EDT WED AUG 19 2009 VAZ003-004-WVZ024-025-033-034-191645- BUCHANAN-DICKENSON-LOGAN-MCDOWELL-MINGO-WYOMING- 1050 AM EDT WED AUG 19 2009 ...A STRONG THUNDERSTORM WILL AFFECT BUCHANAN...DICKENSON... MCDOWELL...SOUTHEASTERN LOGAN...SOUTHEASTERN MINGO AND WYOMING COUNTIES... AT 1046 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A LINE OF TRAINING THUNDERSTORMS LOCATED NEAR CLINTWOOD...MOVING EAST AT 25 MPH. OTHER IMPACTED LOCATIONS INCLUDE BUT ARE NOT LIMITED TO BRUNO... HAMPDEN...AVONDALE...ELBERT...MAYBEURY...COALWOOD...JOLO...PANTHER... COAL MOUNTAIN...HERNDON...CLEAR FORK...WOLF PEN...CYCLONE...HINCH... HANOVER...BAILEYSVILLE...STACY...ROSEANN...MCCLURE...NORA...BIG ROCK...VANSANT...JOHN FLANNAGAN LAKE...HURLEY...HAYSI...GRUNDY... CLINTWOOD...CLINCHCO...BREAKS INTERSTATE PARK...WELCH...WAR...R.D. BAILEY LAKE...PINEVILLE...OCEANA...NORTHFORK...MALLORY...KIMBALL... KEYSTONE...IAEGER...GILBERT CREEK...GILBERT...GARY...DAVY AND BRADSHAW. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. 21
The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:49 PM EDT | Flash Flood Warning | RLX | McDowell | 3 hr |
Nearby
Flash Flood Watches in West Virginia, 2009Every flash flood watch 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.