Nocturnal thunderstorms formed from northeast Ohio southwestward into central Kentucky. Shortly after dawn there was some brief back building of new cells, as the cluster moved across southeast Ohio and into western West Virginia.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS RLX wrote it up.
Nocturnal thunderstorms formed from northeast Ohio southwestward into central Kentucky. Shortly after dawn there was some brief back building of new cells, as the cluster moved across southeast Ohio and into western West Virginia. This caused some heavier rain in Meigs County near Pomeroy.
The local office's own words before the first event, 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 the first event at Aug 6, 3:15 AM EST, 2 hours 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON WV 415 AM EDT SAT AUG 6 2011 .SYNOPSIS... MOIST ATMOSPHERE AND UPPER DISTURBANCES CAUSE SHOWERS AND THUNDERSTORMS TODAY THROUGH TONIGHT. PATTERN REMAINS UNSETTLED WITH PASSING UPPER DISTURBANCES AND MEANDERING FRONT THROUGH MIDWEEK. && .NEAR TERM /THROUGH TONIGHT/... VERY MOIST ATMOSPHERE TODAY...WITH PRECIPITABLE WATER IN EXCESS OF TWO INCHES. RAW MODEL QPF IS IN DISARRAY...AND SO I USED CONSENSUS OF VORTICITY LOBES AND 1000-500MB RH MAXES TO PLACE INDIVIDUAL WAVES. IT APPEARS FIRST VORTICITY AXIS WILL BE COMING THROUGH FAIRLY EARLY TODAY...THUS I EXPECT TWO BATCHES OF ACTIVITY...THE FIRST WITH THE VORTICITY AXIS AND THE SECOND WITH DIURNAL HEATING DURING THE DAY. MOIST ADIABATIC SOUNDINGS WILL YIELD VERY EFFICIENT AND LOCALLY HEAVY RAINFALL WITH THE SHOWERS AND THUNDERSTORMS TODAY...THOUGH MOST OF THE AREA CAN ALSO HANDLE IT BECAUSE OF RECENT DRY PATTERN. THAT BEING SAID...WILL HAVE TO CLOSELY MONITOR IN CASE OF TRAINING CELLS...AND ANY DUMPER COULD CAUSE STREET AND CREEK PROBLEMS. FRONTAL BOUNDARY MAKES TEMPORARY PUSH THROUGH THE AREA TONIGHT...AND THE 2-PLUS INCHES PRECIPITABLE WATER AIR MASS WILL SHIFT SOUTH AND EAST. AS THE BOUNDARY COMES THROUGH...SHOWERS AND THUNDERSTORMS WILL STILL BE LIKELY THIS EVENING. MODEL GUIDANCE HAS BEEN TOO COOL WITH HIGH TEMPERATURES THE PAST FEW DAYS...EVEN THE MAV WHICH IS USUALLY THE WARMEST. HOWEVER...WITH EXPECTED CONVECTIVE ACTIVITY AND VERY MOIST ATMOSPHERE IN GENERAL...I DO FEEL MAV GUIDANCE IS MUCH TOO WARM FOR TODAY AND WILL INSTEAD OPT FOR A BLEND WITH OTHER MODELS. WITH ABUNDANT LOW LEVEL MOISTURE TONIGHT...STAYED ON THE WARM SIDE FOR LOWS TONIGHT...USING A MET/NAM BLEND. && .SHORT TERM /SUNDAY THROUGH TUESDAY NIGHT/... PATTERN GENERALLY REMAINS UNSETTLED THROUGH MID WEEK AS A SERIES OF SHORT WAVES/COOL FRONTS MOVE ACROSS OUR AREA IN A WEST TO NORTHWEST FLOW ALOFT. THIS PATTERN WILL ALSO RESULT IN A SLOW COOLING TREND WITH LESS OPPRESSIVE HUMIDITIES. MODELS ACTUALLY IN REASONABLE AGREEMENT WITH TIMING AND STRENGTH OF THESE SYSTEMS. ONE WEAK SHORT WAVE OVER OUR WESTERN AREAS FIRST THING SUNDAY MORNING WILL CONTINUE TO PROGRESS ACROSS THE AREA DURING SUNDAY...WHILE THE SURFACE FRONT FALLS APART. THE SHORT WAVE WILL BE STRONG ENOUGH TO BRING IN DRIER AIR ALOFT BEHIND IT AND CARRY CONVECTION EASTWARD WITH IT. EXPECT CONVECTION TO EXIT THE AREA BY SUNDAY EVENING...ALTHOUGH THE SURFACE AIRMASS WILL STILL REMAIN ON THE WARM AND HUMID SIDE SUNDAY AND SUNDAY NIGHT. NEXT SHORT WAVE AND COOL FRONT ALREADY APPROACHES BY MONDAY MORNING...AND PROGRESSES ACROSS THE AREA DURING MONDAY. DEEPER MOISTURE IS SLOW TO RETURN AHEAD OF THIS SYSTEM...SO LOW POPS ARE IN ORDER FOR MONDAY WITH THE FRONT. TEMPS WILL BE MOSTLY IN THE 80S. THE FRONT STALLS TO OUR SOUTH BY MONDAY NIGHT AND BEGINS TO MEANDER BACK AND FORTH...AS A SERIES OF ADDITIONAL SHORT WAVES ALLOW DEEPER MOISTURE TO PULL BACK NORTH AND INCREASE CHANCES FOR CONVECTION TUESDAY AND TUESDAY NIGHT. TEMPS WILL BE COOLER TUESDAY PER MODEL GUIDANCE. && .LONG TERM /WEDNESDAY THROUGH FRIDAY/... FLOW ALOFT WILL REMAIN ACTIVE OVER THE NORTHERN GREAT LAKES...AND WILL KEEP THE HIGHER HEIGHTS WELL SOUTH. ANOTHER COOL FRONT AND UPPER LEVEL WEAK WAVE IS SLATED FOR MID WEEK WITH HIGH PRESSURE FOLLOWING FOR THE END OF THE WEEK. TEMPERATURES REMAIN NEAR NORMAL FOR THIS TIME OF YEAR...CONTINUING THE NEEDED BREAK FROM THE HEAT OVER THE FEW WEEKS. && .AVIATION /08Z SATURDAY THROUGH WEDNESDAY/... MOIST ATMOSPHERE AND PASSING DISTURBANCES WILL YIELD BATCHES OF SHOWERS AND THUNDERSTORMS AND ASSOCIATED MVFR/POSSIBLE TEMPO IFR THROUGH THE TAF PERIOD...BUT MAINLY AFTER 13Z AS DIURNAL HEATING HELPS NEW CONVECTION DEVELOP. FROM 06Z-13Z...AMOUNT OF CLOUDS SHOULD PREVENT MOST SITES FROM DROPPING INTO IFR VIS FROM VALLEY FOG...EXCEPT PROBABLY THE OHIO RIVER TERMINALS WITH HIGHER DEWPOINTS THERE. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z SUNDAY... FORECAST CONFIDENCE: MEDIUM. ALTERNATE SCENARIOS: TIMING OF THUNDERSTORMS AND DENSITY OF FOG WILL VARY. EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY OF WFO FORECAST TO AVAILABLE MODEL INFORMATION: H = HIGH: TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL. M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS. L = LOW: TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL. DATE SAT 08/06/11 UTC 1HRLY 08 09 10 11 12 13 14 15 16 17 18 19 EDT 1HRLY 04 05 06 07 08 09 10 11 12 13 14 15 CRW CONSISTENCY H M M M L H L H H H H H HTS CONSISTENCY M L L L L M H H H H H H BKW CONSISTENCY M M M M M M M M M H H M EKN CONSISTENCY H L H H L H H H H H H M PKB CONSISTENCY M L L L L M H M H H H H CKB CONSISTENCY H M M M M M H M L L H H AFTER 06Z SUNDAY... IFR FROM FOG AND STRATUS LATE SATURDAY NIGHT. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...NONE. OH...NONE. KY...NONE. VA...NONE. && SYNOPSIS...MDP/JMV NEAR TERM...MDP SHORT TERM...26 LONG TERM...26 AVIATION...MDP
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON WV 434 AM EDT SAT AUG 6 2011 KYZ105-VAZ003-004-WVZ005>011-013>020-024>040-046-047-070845- LAWRENCE-DICKENSON-BUCHANAN-WAYNE-CABELL-MASON-JACKSON-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- 434 AM EDT SAT AUG 6 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST KENTUCKY...SOUTHWEST VIRGINIA AND MUCH OF 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. KYZ101>103-OHZ066-067-075-076-083>087-070845- GREENUP-CARTER-BOYD-PERRY-MORGAN-ATHENS-WASHINGTON-JACKSON-VINTON- MEIGS-GALLIA-LAWRENCE- 434 AM EDT SAT AUG 6 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST KENTUCKY AND SOUTHEAST OHIO. .DAY ONE...TODAY AND TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON...MAINLY WITH DAMAGING WINDS. .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.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
Kerr Run and Forest Run overflowed into fields and closed County Road 7A for a brief time. Rainfall was estimated at 2 to 2.5 inches in about 2 hours.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2011Every state in 2011This day in weather historyWarnings in Ohio, August 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 323679.