An area of low pressure moved across southern Canada dragging a cold front across northern Ohio. Showers and thunderstorms developed in advance of the front.
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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 CLE wrote it up.
An area of low pressure moved across southern Canada dragging a cold front across northern Ohio. Showers and thunderstorms developed in advance of the front. A couple of the stronger storms became severe.
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 Cleveland, OH wrote its last area forecast discussion before the first event at Aug 12, 12:32 PM EST, 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CLEVELAND OH 132 PM EDT TUE AUG 12 2014 .SYNOPSIS... LOW PRESSURE WILL MOVE NORTHEAST THROUGH THE CENTRAL GREAT LAKES TODAY AND FORCE A COLD FRONT EAST ACROSS THE REGION. A TROUGH OF LOW PRESSURE WILL EXTEND BACK SOUTHWEST FROM THE LOW PRESSURE ACROSS THE LOCAL AREA BY WEDNESDAY EVENING. HIGH PRESSURE WILL MOVE EAST AND BE OVER OHIO BY FRIDAY MORNING AND MOVE TO THE MID ATLANTIC COAST BY SATURDAY MORNING. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... MAIN FOCUS FOR TODAY WILL BE ALONG A COLD FRONT THAT WILL MOVE ACROSS THE AREA DURING THE DAYLIGHT HOURS. AS OF 1230P THE COLD FRONT WAS LOCATED NEAR THE I-75 CORRIDOR. SCATTERED SHOWERS/THUNDERSTORMS HAVE DEVELOPED OUT AHEAD OF IT BETWEEN CLE/BJJ. EXPECT COVERAGE TO INCREASE AS WELL AS THE THREAT FOR SEVERE THUNDERSTORMS COINCIDENT WITH AFTERNOON HEATING AND THE APPROACH OF UPPER SUPPORT...PRIMARILY ALONG/EAST OF I-71. WIND WILL BE THE PRIMARY THREAT WITH HAIL A SECONDARY THREAT. TORNADOES LESS SO...WITH MOST OF THE LOW LEVEL SHEAR TO OUR EAST. ADDITIONAL SHOWERS AND THUNDERSTORMS MAY POP UP WITH THE UPPER TROUGH ACROSS NORTHWEST OHIO LATE IN THE DAY EVEN WITH THE COLD FRONT WELL EAST OF THEM. MIDDAY UPDATE OUT. && .SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/... UPPER LEVEL TROUGH STALLS OVER THE NORTHEASTERN UNITED STATES WHILE IT EVENTUALLY MORPHS INTO A LARGE UPPER LEVEL LOW PRESSURE SYSTEM BY THURSDAY NIGHT. THIS IS IN RESPONSE TO A PIECE OF ENERGY PLOWING INTO THE WESTERN UNITED STATES. AN UPPER LEVEL RIDGE OVER THE WEST CENTRAL UNITED STATES WILL DEAMPLIFY WITH TIME AND WASH OUT BY FRIDAY NIGHT. SURFACE LOW PRESSURE WILL CONTINUE TO PULL OUT TO THE NORTHEAST WITH TIME AND DRAG THE COLD FRONT EAST AND WELL OUT OF THE REGION TONIGHT AND WEDNESDAY. A TROUGH OF LOW PRESSURE WILL SETTLE IN OVER THE REGION WEDNESDAY NIGHT AND THEN LIFT OUT AS WELL. LARGE AREA OF HIGH PRESSURE IS PROGGED TO BUILD EAST SOUTHEAST INTO THE FORECAST AREA AND BRING A RETURN BACK TO FAIR WEATHER INTO THE WEEKEND. THE HIGH EVENTUALLY SHIFTS TO THE MID ATLANTIC COAST BRINGING A RETURN SOUTHERLY FLOW BACK TO THE REGION. COLD AIR ADVECTION IN THE WAKE OF THE COLD FRONT WILL TAKE PLACE AND THEN WE SHOULD SEE A GRADUAL WARM UP BY THE LATTER PORTION OF THE FORECAST PERIOD. && .LONG TERM /SATURDAY THROUGH TUESDAY/... THE FORECAST IS BEGINNING TO CHANGE WITH BOTH THE GFS AND ECMWF BRINGING IN A LOW AND FRONT FOR THE WEEKEND. INTRODUCED 20 POPS FOR SATURDAY NIGHT AND 30 POPS ON SUNDAY AND THEN ANOTHER WEATHER SYSTEM WILL BE MOVING IN FOR EARLY NEXT WEEK. TEMPERATURES WILL GO BACK ABOVE NORMAL EARLY NEXT WEEK. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... LINE OF THUNDERSTORMS ALONG AN ADVANCING COLD FRONT WILL IMPACT YNG/ERI OVER THE EARLY AFTERNOON HOURS. FOR AREAS WEST THERE WILL BE A BREAK BEFORE ANOTHER TROF WITH MORE OF A WIND SHIFT MOVES THROUGH. WEST/NORTHWEST WINDS WILL BE AROUND 10-15KT BEHIND THE FRONT. SOME SCATTERED SHOWERS ARE POSSIBLE WITH THE SECONDARY FRONT LATER THIS AFTERNOON/EARLY EVENING. AFTER THAT CEILINGS WILL COME DOWN TO MVFR AND POSSIBLY IFR NEAR DAYBREAK. SOME PATCHES OF LIGHT RAIN OR BRIEF SHOWERS ARE POSSIBLE OVER NIGHT WITH THE UPPER TROUGH IN PLACE. AFTER DAYBREAK THE LOW CEILILNGS WILL LIFT TO AROUND 2-3K FT. SHOWERS POSSIBLE AT ERI/CLE. OUTLOOK...NON VFR CEILINGS AND VISIBILITY IN PRECIPITATION MAINLY WEDNESDAY MORNING ACROSS NE OH/NW PA. && .MARINE... CONTINUING THE SMALL CRAFT ADVISORY ON THE EAST END OF THE LAKE THROUGH 10 AM BECAUSE OF 15 TO 25 KNOT WINDS FROM THE SOUTH. A COLD FRONT WILL BE CROSSING THE LAKE TODAY. SOME OF THE THUNDERSTORMS MAY PROMPT THE NEED FOR A SPECIAL MARINE WARNING...ESPECIALLY LATER TODAY AND ESPECIALLY ON THE EAST END. THE WINDS WILL SLOWLY PICK UP TONIGHT THROUGH THURSDAY IN THE COLD ADVECTION. A SMALL CRAFT ADVISORY MAY BE NEEDED. THIS IS NOT A REAL COLD OUTBREAK AND THE AIR MASS DRIES OUT QUICKLY. BECAUSE OF THAT WILL NOT MENTION WATERSPOUTS ON WEDNESDAY...BUT THIS WILL HAVE TO BE WATCHED. HIGH PRESSURE WILL BEGIN BUILDING IN ON THURSDAY AND WILL MOVE EAST OF THE LAKE ON SATURDAY AS ANOTHER WEATHER SYSTEM APPROACHES. NOT EXCEPTING CONDITIONS TO MEET SMALL CRAFT ADVISORY CRITERIA FRIDAY THROUGH SATURDAY. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...NONE. PA...NONE. MARINE...NONE. && SYNOPSIS...LOMBARDY NEAR TERM...LOMBARDY/OUDEMAN SHORT TERM...LOMBARDY/OUDEMAN LONG TERM...KIELTYKA AVIATION...JAMISON MARINE...KIELTYKA
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CLEVELAND OH 336 AM EDT TUE AUG 12 2014 OHZ003-006>011-017>021-027>031-036>038-047-130745- LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-HANCOCK-SENECA- HURON-MEDINA-SUMMIT-WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-MARION- MORROW-HOLMES-KNOX- 336 AM EDT TUE AUG 12 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL OHIO...NORTHEAST OHIO AND NORTHWEST OHIO. .DAY ONE...TODAY AND TONIGHT. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. LEZ061-142>149-162>169-130745- LAKE ERIE OPEN WATERS FROM RIPLEY TO BUFFALO NY- MAUMEE BAY TO RENO BEACH OH-RENO BEACH TO THE ISLANDS OH- THE ISLANDS TO VERMILION OH-VERMILION TO AVON POINT OH- AVON POINT TO WILLOWICK OH-WILLOWICK TO GENEVA-ON-THE LAKE OH-GENEVA- ON-THE-LAKE TO CONNEAUT OH-CONNEAUT OH TO RIPLEY NY- LAKE ERIE OPEN WATERS FROM MAUMEE BAY TO RENO BEACH- LAKE ERIE OPEN WATERS FROM RENO BEACH TO THE ISLANDS- LAKE ERIE OPEN WATERS FROM THE ISLANDS TO VERMILION- LAKE ERIE OPEN WATERS FROM VERMILION TO AVON POINT- LAKE ERIE OPEN WATERS FROM AVON POINT TO WILLOWICK- LAKE ERIE OPEN WATERS FROM WILLOWICK TO GENEVA-ON-THE-LAKE- LAKE ERIE OPEN WATERS FROM GENEVA-ON-THE-LAKE TO CONNEAUT- LAKE ERIE OPEN WATERS FROM CONNEAUT OH TO RIPLEY NY- 336 AM EDT TUE AUG 12 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE. .DAY ONE...TODAY AND TONIGHT. THERE IS A POSSIBILITY FOR SEVERE THUNDERSTORMS ACROSS THE EASTERN HALF OF LAKE ERIE TODAY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. OHZ012>014-022-023-032-033-089-PAZ001>003-130745- LAKE-GEAUGA-ASHTABULA INLAND-PORTAGE-TRUMBULL-STARK-MAHONING- ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-CRAWFORD PA- 336 AM EDT TUE AUG 12 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST OHIO AND NORTHWEST PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. THERE IS THE POSSIBILITY FOR SEVERE THUNDERSTORMS TODAY. DEPENDING ON HEATING TODAY FROM THE BREAKS IN THE OVERCAST...THE AREA COULD SEE SOME STRONG SUPER CELL THUNDERSTORMS DEVELOP AND PRODUCE DAMAGING WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. LOMBARDY
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 118 PM EDT TUE AUG 12 2014 OHZ011-013-021-022-121800- CUYAHOGA-GEAUGA-PORTAGE-SUMMIT- 118 PM EDT TUE AUG 12 2014 ...SPECIAL WEATHER STATEMENT FOR GEAUGA...PORTAGE...SOUTHEASTERN CUYAHOGA AND SUMMIT COUNTIES UNTIL 200 PM EDT... AT 116 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR CUYAHOGA FALLS...OR 9 MILES NORTH OF AKRON...MOVING NORTHEAST AT 30 MPH. THIS STORM IS CAPABLE OF PRODUCING 50 MPH WINDS AND SMALL HAIL. PEOPLE IN CUYAHOGA...GEAUGA...PORTAGE AND SUMMIT COUNTIES...INCLUDING THE CITIES OF CUYAHOGA FALLS...HUDSON...STREETSBORO AND MANTUA... SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. LAPLANTE
The Cleveland radar (KCLE), 72 km away, was scanning. The volume nearest the first event began at 17:55 UTC.
2 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds downed a couple of large tree limbs.
Thunderstorm winds downed a few large tree limbs.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2014Every state in 2014This day in weather historyWarnings in Ohio, August 2014
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: 539766, 539768.