Alert archive / West Virginia / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 130, NWS Charleston, WV
NWS Charleston, WV issued this severe thunderstorm warning at Jul 9, 2009, 4:02 PM EDT for McDowell County, West Virginia. It was in force for 28 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 9, 2009, 4:02 PM EDT (20:02 UTC)
- Expired
- Jul 9, 2009, 4:30 PM EDT
- In force
- 28 min
- Issued by
- NWS Charleston, WV
- Area
- Storm-based polygon
County McDowell County, WV
The radar
The Charleston,WV radar (KRLX), 104 km from the middle of the area, began a volume at 20:04 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, 8.0 hours before the alert went out and 192 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 791 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 9, 1:43 PM EDT, 2 hours 19 minutes earlier.
Area forecast discussion, Jul 9, 1:43 PM EDT, 2 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON WV 143 PM EDT THU JUL 9 2009 .SYNOPSIS... AN UPPER LEVEL DISTURBANCE TODAY AND THIS EVENING. INCREASING MOISTURE FRIDAY. COLD FRONT ARRIVES OVER THE WEEKEND... BECOMING STATIONARY ALONG OUR SOUTHERN BORDER INTO EARLY NEXT WEEK. && .NEAR TERM /THROUGH TONIGHT/... VORT MAX DROPPING INTO CWA CURRENTLY. LOW LEVEL MOISTURE IS LACKING...SO SHRA ARE STRUGGLING TO GET TO THE GROUND. KEEPING POPS SLIGHT CHANCE FOR THE MOST PART UNTIL LATER THIS AFTERNOON...WHEN THE MIDLEVEL SUPPORT CAN COMBINE WITH MORE MOIST SOUTHEAST FLOW TO CREATE SLIGHTLY MORE WIDESPREAD SHRA AND A FEW TSRA. SO...KEPT AFTERNOON POPS PRETTY MUCH INTACT. AFTERNOON MAXES ALSO LEFT ALONE. THINK LAV IS A BIT TOO COOL AS AT LEAST A FEW SUNNY BREAKS SHOULD BE SEEN AS TIME GOES ON. && .SHORT TERM /FRIDAY THROUGH SUNDAY NIGHT/... PERIOD SHOULD BEGIN WITH SURFACE HIGH PRESSURE RIDGE EXTENDING FROM THE NEW ENGLAND STATES ACROSS VIRGINIA INTO THE SOUTHEASTERN STATES. THIS FEATURE WILL COMBINE WITH AN UPPER LEVEL RIDGE BUILDING IN FROM THE SOUTHWEST TO RESULT IN DRY WEATHER ACROSS MOST LOCATIONS FOR FRIDAY. THE EXCEPTION MAY BE ACROSS THE HIGHER ELEVATIONS...WHERE A FEW OF THE MODELS AS WELL AS HPC SUGGEST SOME CONVECTION MAY DEVELOP. HAVE GONE WITH SLIGHT CHANCE POPS IN THOSE LOCATIONS. SURFACE HIGH PRESSURE SHOULD THEN PUSH SOUTHEAST ALLOWING A COLD FRONT TO APPROACH FROM THE NORTHWEST BY SATURDAY. MODELS DIFFER SOMEWHAT ON THE TIMING OF THE FRONT. HOWEVER...FEEL FRONT SHOULD PUSH INTO NORTHERN PORTIONS OF THE FORECAST AREA AROUND 06 UTC SUNDAY AND THEN BECOME STATIONARY ACROSS OUR SOUTHERN COUNTIES SUNDAY AFTERNOON. GFS IS QUICKER TO MOVE PRECIPITATION SOUTHEAST INTO THE AREA ON SATURDAY. INITIALLY THOUGHT IT MAY BE TOO FAST. HOWEVER...LATEST GEM SUPPORTS THE GFS THINKING. PRECIPITATION CHANCES SHOULD THEN PUSH SOUTHEAST WITH FRONT. BY SUNDAY AFTERNOON...PORTIONS OF SOUTHEAST OHIO AND NORTHERN WEST VIRGINIA SHOULD BE DRY.FAR NORTHERN CONTINUE NEAR THE FRONT MAX/MIN TEMPERATURES WERE TWEAKED TO REFLECT THE LATEST GUIDANCE. && .LONG TERM /MONDAY THROUGH WEDNESDAY/... MODELS CONTINUE TO SHOW AN AREA OF LOW PRESSURE WILL MOVE EAST FROM THE CENTRAL PLAINS. AS THE LOW MOVES EAST...THE FRONT SHOULD BEGIN TO MOVE BACK NORTH AS WARM FRONT....WITH THE PRECIPITATION CHANCES ALSO EXPECTED TO SPREAD NORTH. PREVIOUS FORECAST REFLECT THIS THINKING...SO ONLY MINOR TWEAKS WERE MADE TO MONDAY AND MONDAY NIGHT. OTHERWISE...NO CHANGES WERE MADE. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... CIGS WILL GENERALLY REMAIN VFR THIS AFTERNOON...AS SCATTERED SHOWERS AND STORMS DEVELOP MAINLY IN THE MOUNTAINS. ANY IFR CONDITIONS IN THUNDERSTORMS WOULD BE VERY BRIEF AND DID NOT INCLUDE IN TAFS...BUT DID HAVE TSRA MENTION AT EKN/BKW. CLOUDS WILL BREAK UP TONIGHT AS UPPER DISTURBANCE PASSES...WHO GETS RAIN AND HOW QUICK THE CLOUDS CLEAR WILL DETERMINE FOG SETUP. FOR NOW...CONFINED TO THE VALLEYS AND KEPT IFR VSBYS TO THE WEST...WHERE SKIES WILL CLEAR FIRST. ANY FOG WILL LIFT BY 13Z...WITH VFR CONDITIONS THEREAFTER. AFTER 18Z FRIDAY... IFR POSSIBLE IN THUNDERSTORMS SAT AFTN AND NT...FOLLOWED BY POST-RAIN FOG AT NT. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...NONE. OH...NONE. KY...NONE. VA...NONE. && SYNOPSIS...JSH/RPY NEAR TERM...CL SHORT TERM...JSH LONG TERM...JSH/JMV AVIATION...CL
Hazardous weather outlook, Jul 9, 3:46 AM EDT, 12 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON WV 346 AM EDT THU JUL 9 2009 KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011- 013>020-024>040-046-047-100800- 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- 346 AM EDT THU JUL 9 2009 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, Jul 9, 2:41 PM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 241 PM EDT THU JUL 9 2009 WVZ035-036-091915- FAYETTE-RALEIGH- 241 PM EDT THU JUL 9 2009 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL RALEIGH AND SOUTH CENTRAL FAYETTE COUNTIES... AT 239 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM LOCATED NEAR STANAFORD...MOVING SOUTHEAST AT 5 MPH. THIS STORM WILL PRODUCE SMALL HAIL AND GUSTY WINDS. THIS STORM WILL BE NEAR DANIELS AROUND 300 PM AND SHADY SPRING AROUND 315 PM. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. 14
Local storm report, Jul 9, 3:41 PM EDT, 21 minutes before
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</html>Special weather statement, Jul 9, 3:57 PM EDT, 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 357 PM EDT THU JUL 9 2009 WVZ033>037-092100- MCDOWELL-WYOMING-RALEIGH-FAYETTE-NICHOLAS- INCLUDING THE CITIES OF...WELCH...GARY...WAR...MULLENS...OCEANA... PINEVILLE...BECKLEY...OAK HILL...FAYETTEVILLE...SUMMERSVILLE... RICHWOOD...CRAIGSVILLE 357 PM EDT THU JUL 9 2009 HERE IS A SPECIAL WEATHER STATEMENT FROM THE NATIONAL WEATHER SERVICE... NUMEROUS THUNDERSTORMS IN THE CENTRAL MOUNTAINS OF WEST VIRGINIA THIS AFTERNOON MAY AFFECT CERTAIN LOCATIONS REPEATEDLY AS THEY FORM...DISSIPATE AND REFORM OR BACK-BUILD. THIS WILL RESULT IN LOCALIZE REPETITIVE DOWNPOURS. ONE HALF INCH RAINFALL IN 15 MINUTES AND AN INCH IN UNDER AN HOUR ARE POSSIBLE FROM ANY ONE OF THESE DOWNPOURS...WITH HIGHER AMOUNTS WHERE REPETITIVE DOWNPOURS OCCUR. STRONG WINDS COULD CAUSE TREE LIMBS TO BREAK...AND FREQUENT LIGHTNING WILL ALSO ACCOMPANY THE STORMS. THE HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON ROADS...POOR DRAINAGE AND LOW LYING AREAS...AND BRIEFLY MAKE HYDROPLANING POSSIBLE WHERE WATER RUNS ACROSS ROADWAYS. RAPIDLY MOVING WATER IN SWOLLEN STREAMS AND EVEN MINOR FLOODING ARE POSSIBLE....PARTICULARLY FROM REPETITIVE STORMS. MUDSLIDES ARE ALSO POSSIBLE. TRM
The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 3:39 PM EDT | Severe Thunderstorm Warning | RLX | Fayette, Nicholas | 36 min |
| Jul 9, 6:19 PM EDT | Flash Flood Warning | RLX | McDowell, Mingo | 86 min |
Nearby
Severe Thunderstorm Warnings in West Virginia, 2009Every 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.