Scattered thunderstorms developed ahead of a slow moving cold front across the Upper Ohio Valley. These storms produced very heavy rainfall across Belmont county Ohio which caused flooding of roadways.
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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 PBZ wrote it up.
Scattered thunderstorms developed ahead of a slow moving cold front across the Upper Ohio Valley. These storms produced very heavy rainfall across Belmont county Ohio which caused flooding of roadways.
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 Pittsburgh, PA wrote its last area forecast discussion before the first event at Oct 13, 2:54 PM EST, 2 hours 26 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 354 PM EDT THU OCT 13 2011 .SYNOPSIS... A SLOW MOVING LOW PRESSURE SYSTEM WILL SPREAD SHOWERS ACROSS THE UPPER OHIO VALLEY REGION TONIGHT AND FRIDAY. COOLER TEMPERATURES WILL FOLLOW ON SATURDAY. && .NEAR TERM /THROUGH FRIDAY/... SHOWERS WILL CONTINUE TO SPREAD NORTH AND EAST EARLY TONIGHT AS UPPER TROF AXIS APPROACHES. ASSOCIATED SURFACE REFLECTION IS PROGGED TO GRADUALLY DEEPEN AS IT LIFTS NORTHWARD INTO THE GREAT LAKES LATE TONIGHT AND FRIDAY. WIDELY SCATTERED THUNDERSTORMS HAVE ALREADY DEVELOPED OVER PARTS OF WEST VIRGINIA WHERE SURFACE DEW POINTS HAVE RISEN INTO THE LOWER 60S. INCLUDED MENTION OF ISOLATED STORMS IN OUR SOUTHERN ZONES EARLY TONIGHT. AS SYSTEM PULLS NORTHWARD FRIDAY...CATEGORICAL POPS EAST AND LIKELY POPS OVER THE WEST WILL TAPER OFF TO SCATTERED COVERAGE BY LATE AFTERNOON. AFTERNOON TEMPERATURES WILL PEAK IN THE LOWER TO MID 60S...CLOSE TO NORMAL VALUES. && .SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/... MODELS SHOW UPPER TROUGH CLOSING OFF AS IT MOVES SLOWLY EAST ACROSS THE GREAT LAKES FRIDAY NIGHT AND SATURDAY. ASSOCIATED MOISTURE IS FORECAST TO REMAIN GENERALLY NORTH OF THE FORECAST AREA. KEPT SCATTERED POPS SATURDAY INTO EARLY SATURDAY NIGHT FOR AREAS NORTH OF I-80...WITH A DRY FORECAST SOUTH. TEMPERATURES ON SATURDAY AFTERNOON WILL LIKELY HOLD IN THE 50S MOST LOCATIONS...WITH LOWER 60S FAR SOUTH. WITH TIGHT PRESSURE GRADIENT...BOUNDARY LAYER MIXING WILL CREATE WIND GUSTS AROUND 30 MPH WITH SOME HIGHER GUSTS ON RIDGES. A WEAK FRONTAL BOUNDARY WILL SAG THROUGH THE REGION SUNDAY BRINGING SCATTERED SHOWERS NORTH AND WIDELY SCATTERED FURTHER SOUTH. MAXIMUM AFTERNOON TEMPERATURES ARE EXPECTED TO RECOVER INTO THE 60S. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... MEDIUM RANGE MODELS SHOW A SHOW A SHORT WAVE TROUGH OVER THE NORTHWEST STATES EARLY IN THE WEEK...GRADUALLY DIGGING SOUTHEAST INTO THE MS VALLEY BY MIDWEEK AND CONTINUING TO DEEPEN AS IT MOVES EAST. A SURFACE WAVE IS PROGGED TO DEVELOP AND TRACK EASTWARD ALONG A FRONTAL BOUNDARY STRETCHED TO OUR SOUTH. MODELS STILL DIFFER SIGNIFICANTLY ON TRACK OF THE SURFACE LOW. WENT CLOSE TO HPC SOLUTION WHICH PUSHES THE LOW ACROSS THE OH VALLEY TUESDAY AND INTO EASTERN PA WEDNESDAY. KEPT SCATTERED POPS FOR SHOWERS IN FORECAST EACH DAY WITH TEMPERATURES COOLING TO 5 TO 10 DEGREES BELOW NORMAL BY THURSDAY AS SYSTEM MOVES EAST OF THE REGION. && .AVIATION /19Z THURSDAY THROUGH TUESDAY/... GENERAL VFR CONDITIONS ARE EXPECTED THROUGH THE EARLY EVENING WITH BROKEN TO OVERCAST CEILINGS OF 040 TO 080 FEET. EXPECT PREFRONTAL SHOWERS WITH MVFR RESTRICTIONS, AND ISOLATED THUNDERSTORMS TO SPREAD NORTHEASTWARD ACROSS THE UPPER OHIO VALLEY LATE THIS AFTERNOON AND INTO THIS EVENING FROM SOUTHWEST TO NORTHEAST. NOCTURNAL COOLING OF THE RAIN-MOISTENED SURFACE LAYER TO RESULT IN SOME PATCHY IFR FOG BY LATE TONIGHT. .OUTLOOK...FRIDAY THROUGH MONDAY... POST FRONTAL SHOWERS AND ENSUING COLD POOL INSTABILITY STRATOCUMULUS WILL MAINTAIN MVFR RESTRICTIONS INTO SATURDAY. A SECOND COLD FRONT MAY PROVIDE ANOTHER BOUT OF MVFR SHOWERS LATE SUNDAY INTO MONDAY. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 424 AM EDT THU OCT 13 2011 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-140830- GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON- JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO- FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY- ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES- FAYETTE-FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION- MONONGALIA-PRESTON-TUCKER- 424 AM EDT THU OCT 13 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF 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.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
504 PM EDT THU OCT 13 2011
OHZ059-069-132200-
BELMONT OH-MONROE OH-
504 PM EDT THU OCT 13 2011
...STRONG THUNDERSTORMS WILL AFFECT BELMONT AND MONROE COUNTIES...
AT 458 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 5 MILES
SOUTH OF SOMERTON TO 5 MILES SOUTH OF ALLEDONIA...MOVING NORTH AT 25
MPH.
VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
ACCORDING TO RADAR ESTIMATES...ONE TO TWO INCHES OF RAIN HAVE FALLEN
IN ISOLATED LOCATIONS...AND ADDITIONAL THUNDERSTORMS ARE EXPECTED TO
MOVE ACROSS THE SAME AREAS. THE PRIMARY STRIPE OF HEAVY RAINFALL IS
FROM WOODSFIELD TO SOMERTON AND BARNESVILLE.
SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
WOODSFIELD... ROUND BOTTOM... LEWISVILLE...
HANNIBAL... GRAYSVILLE... CLARINGTON...
CAMERON... BENWOOD... ANTIOCH...
SOMERTON... ALLEDONIA... BARNESVILLE...
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.
PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3960 8123 4016 8120 4015 8085 3965 8087
3963 8087 3962 8089 3962 8093 3959 8096
3959 8097SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
608 PM EDT THU OCT 13 2011
OHZ040-049-132300-
CARROLL OH-HARRISON OH-
608 PM EDT THU OCT 13 2011
...A STRONG THUNDERSTORM WILL AFFECT CARROLL AND NORTHERN HARRISON
COUNTIES...
AT 603 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTH OF
SCIO...MOVING NORTH AT 25 MPH.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
ONE TO TWO INCHES OF RAIN HAVE OCCURRED IN SOME LOCATIONS WITH THIS
LINE OF THUNDERSTORMS. THE HEAVIEST RAINFALL WILL OCCUR FROM SCIO TO
CARROLLTON.
SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
JEWETT... SCIO... BOWERSTON...
KILGORE... LEESVILLE LAKE PARK...
SHERRODSVILLE... DELLROY... CARROLLTON...
AUGUSTA... MALVERN...
PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 4066 8125 4072 8124 4073 8123 4073 8121
4073 8120 4074 8109 4073 8108 4072 8098
4029 8095 4027 8119 4066 8129The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Emergency management reported Route 149 flooded near Barkcamp State Park.
Emergency management reported flooding at the junction of Route 148 and Route 145 closing the roadways.
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, October 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: 346657, 346659.