A nearly vertically stacked surface and upper level low were located near Chicago with a minimal amount of instability located across Ohio during the afternoon hours. Showers and thunderstorms developed as a shortwave moved northeast around the eastern edge of the upper level low.
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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.
A nearly vertically stacked surface and upper level low were located near Chicago with a minimal amount of instability located across Ohio during the afternoon hours. Showers and thunderstorms developed as a shortwave moved northeast around the eastern edge of the upper level low.
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 Apr 29, 6:30 PM EST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CLEVELAND OH 730 PM EDT TUE APR 29 2014 .SYNOPSIS... LOW PRESSURE OVER IOWA WILL MOVE SLOWLY ACROSS THE GREAT LAKES THROUGH LATE WEEK. THE ASSOCIATED COLD FRONT WILL PUSH TO WESTERN OHIO BY WEDNESDAY MORNING...THEN CROSS THE REMAINDER OF THE FORECAST AREA BY WEDNESDAY NIGHT. A TROUGH ALOFT WILL LINGER OVER THE GREAT LAKES INTO EARLY NEXT WEEK. && .NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/... UPDATED TO SLOW THE TIMING OF THE SHOWERS AND THUNDERSTORMS OVER THE EASTERN HALF OF THE FORECAST AREA. OTHERWISE JUST WAITING FOR THE SHOWERS AND THUNDERSTORMS TO MOVE IN. THE WINDS ARE STILL GUSTY ALONG THE ERIE PA LAKESHORE BUT WILL BE DECREASING BY DARK. PREVIOUS DISCUSSION... LET THE WIND ADVISORIES/WARNINGS EXPIRE ACROSS EXTREME NE OH/NW PA. THE STRONGEST WINDS HAVE MOVED EAST ALTHOUGH IT WILL REMAIN WINDY THIS EVENING. A SLOT OF CONVECTION DEVELOPED ON THE CLOUD STREETS OVER NORTH CENTRAL OHIO/LAKE ERIE THAT OCCURRED WITH THE HIGHER BOUNDARY LAYER MOISTURE COMBINED WITH SOME CAPE UNDER THE JET ALOFT. DRYING AND SUBSIDENCE ARE PUSHING NORTH. DEWPOINTS HAVE BEEN DROPPING AHEAD OF THE NEXT SHORT WAVE WHICH HAS A MORE SYNOPTIC LOOK TO IT. SMALL HAIL HAS BEEN REPORTED WITH A FEW OF THE CELLS. THIS COULD CONTINUE TO BE THE CASE FOR A WHILE BUT EXPECT THESE SHOWERS/STORMS TO DIMINISH LATE THIS AFTERNOON. THE SHORT WAVE COMING UP THE EAST SIDE OF THE UPPER LOW IS STRONG AND WILL SPAWN NEW SHOWER ACTIVITY WHICH WILL PROPAGATE NORTHEASTWARD TONIGHT AND FILL IN ACROSS THE FORECAST AREA. IT WILL CONTINUE TO COOL ALOFT AND WITH THE RELATIVELY WARM BOUNDARY LAYER THE LAPSE RATES WILL STEEPEN. WILL KEEP THUNDERSTORMS IN THE FORECAST BUT THERE WOULD SEEM A MINIMAL RISK FOR ORGANIZED SEVERE STORMS AND WILL NOT HAVE IT SPECIFICALLY MENTIONED IN THE ZONE FORECAST. WILL KEEP A MENTION IN THE HAZARDOUS WEATHER OUTLOOK SINCE WE ARE STILL IN THE "SLGT RISK" FROM SPC. LOWS IN THE 50S...A FEW DEGREES ABOVE GUIDANCE ESPECIALLY WHERE IT HAS WARMED UP THIS AFTERNOON. && .SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY NIGHT/... MUCH THE SAME ISSUES ON WEDNESDAY. COOLING ALOFT WITH THE JET OVER HEAD. THE ACTUAL COLD FRONT WILL LIKELY HAVE MADE IT TO WESTERN OHIO BY MORNING THEN IT WILL TAKE ANOTHER SURGE TO GET IT EASTWARD DURING THE DAY WEDNESDAY. THE BEST CHANCE FOR MORE SHOWERS AND THUNDERSTORMS WOULD SEEM TO BE EAST OF I-71. THERE COULD VERY WELL BE REDEVELOPMENT OF SHOWERS AND STORMS AHEAD OF THE COLD FRONT AND WILL CONTINUE TO MENTION THUNDERSTORMS. HIGHS IN THE 60S TO NEAR 70. COOLER THURSDAY BEHIND THE FRONT. NOT SURE IF IT WILL BE CLOUDY OR MORE OF A BROKEN CLOUD DECK. WILL HAVE TO KEEP A CHANCE OF SHOWERS IN THE FORECAST UNDER THE TROUGH ALOFT. HIGHS IN THE 50S. MUCH THE SAME ON FRIDAY. && .LONG TERM /SATURDAY THROUGH TUESDAY/... CYCLONIC FLOW AT THE SFC AND ALOFT LOOKS TO PREVAIL SAT NIGHT INTO SUN SO EXPECT REINFORCING COLD FRONTS/TROUGHS TO BE DROPPING ACROSS THE AREA. EXPECT TO SEE SCT SHRA HANG AROUND THRU SUN THEN SHIFT TO THE SNOWBELT SUN NIGHT AS HIGH PRESSURE SHOULD FINALLY BUILD SE INTO THE AREA. TEMPS WILL BE COOL BUT NOT COLD ENOUGH FOR SNOW. THE MODELS SHOW THE RIDGE SHIFTING NE OF THE AREA BY TUE BUT OVERRUNNING IS ALREADY SETTING UP ALOFT WITH INCREASING MOISTURE MON INTO MON NIGHT. FOR NOW WILL KEEP MON GENERALLY DRY THEN BRING CHANCE FOR SHRA BACK MON NIGHT THRU TUE AS THE MOISTURE CONTINUES TO INCREASE OVER THE AREA AS A WARM FRONT LIFTS INTO THE AREA TO ACT AS A LOWER LEVEL FOCUS. TEMPS MON WILL REMAIN BELOW NORMAL AND PROBABLY ALSO ON TUE. && .AVIATION /00Z WEDNESDAY THROUGH SUNDAY/... WARM FRONT NOW BISECTING THE AREA. IT WILL GRADUALLY MOVE EAST...AS IT DOES WINDS WILL DIMINISH AND SHIFT TO THE SOUTH. AS FAR AS CONVECTION AS LATE IN THE EVENING EXPECT AREA OF SHRA/TSRA NW OH WILL GRADUALLY INCREASE IN COVERAGE AND MOVE EAST OVERNIGHT A UPPER LEVEL SHORT WAVE MOVES ACROSS THE AREA. DOUBTS AS TO HOW FAR EAST TSRA WILL MOVE. FOR NOW JUST MENTIONED TSRA IN TOL/FDY TAFS. .OUTLOOK...WIDESPREAD NON-VFR BEHIND THE COLD FRONT WEDNESDAY NIGHT THROUGH FRIDAY. && .MARINE... WINDS WILL CONTINUE TO GRADUALLY DIMINISH THIS EVENING. WINDS NOW APPEAR TO BE DROPPING INTO THE SCA CATEGORY SO WILL ADJUST HEADLINES FOR JUST A SCA FOR THE EAST PART OF THE NEARSHORE AND REMOVE ALL THE GALES. SCA CONDITIONS COULD HANG ON AT THE NW PA SHORE THRU WED MORNING SO WILL RUN THE SCA UNTIL 10 AM. A COLD FRONT WILL CROSS THE LAKE WED NIGHT AND TURN THE FLOW TO SW WHICH WILL HANG AROUND THRU FRI THEN THE FLOW SHOULD BECOME MORE WEST ON THE WEEKEND. WINDS SPEEDS SHOULD STAY 20 KNOTS OR LESS. GIVEN THE MARGINAL SITUATION...THE QUESTION WILL BE WHETHER ANY 4 FOOT OR MORE WAVES CAN SPREAD DOWN INTO THE NEARSHORE WATERS THU THRU SUN. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...NONE. PA...NONE. MARINE...SMALL CRAFT ADVISORY UNTIL 10 AM EDT WEDNESDAY FOR LEZ148-149. && SYNOPSIS...KOSARIK NEAR TERM...KIELTYKA/KOSARIK SHORT TERM...KOSARIK LONG TERM...ADAMS AVIATION...DJB MARINE...ADAMS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CLEVELAND OH 318 PM EDT TUE APR 29 2014 OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-301930- LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA- ASHTABULA INLAND-HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL- WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW- HOLMES-KNOX-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE- CRAWFORD PA- 318 PM EDT TUE APR 29 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL OHIO...NORTHEAST OHIO...NORTHWEST OHIO AND NORTHWEST PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THERE IS A SLIGHT RISK FOR THUNDERSTORMS TONIGHT WITH DAMAGING WINDS AND LARGE HAIL. ORGANIZED SEVERE WEATHER IS NOT LIKELY. ANY HEAVY RAIN COULD CAUSE PONDING OF WATER IN LOW LYING AREAS AND POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ANY HEAVY RAIN COULD CAUSE PONDING OF WATER IN LOW LYING AREAS AND POOR DRAINAGE AREAS ON WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. LEZ061-142>149-162>169-301930- 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- 318 PM EDT TUE APR 29 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS 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.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
235 PM EDT TUE APR 29 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0232 PM HAIL 1 N MONROEVILLE 41.26N 82.70W
04/29/2014 E0.25 INCH HURON OH TRAINED SPOTTER
&&
THOMPSONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
718 PM EDT TUE APR 29 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1047 AM NON-TSTM WND GST ERIE 42.13N 80.09W
04/29/2014 E58.00 MPH ERIE PA ASOS
&&
KIELTYKAThe Cleveland radar (KCLE), 133 km away, was scanning. The volume nearest the first event began at 00:30 UTC.
8 hail, 5 thunderstorm wind. Local standard time, as filed.
Numerous trees down across the southern half of the county, including Mt. Gilead.
A trained weather spotter reported penny size hail in Mansfield.
Fire department reported a tree and large limbs down.
Dispatch relayed that a roof was blown off a barn from thunderstorm winds.
A trained weather spotter reported an estimated wind gust to 60 mph. Quarter size hail was accompanied the storm.
A trained weather spotter observed quarter size hail. Estimated wind speeds to 60 mph accompanied the hail.
A mobile home flipped in Bellville, injuring one person. Strong thunderstorm winds were observed at Mansfield Lahm Field with a wind gust to 53 knots. The strong thunderstorm winds brought down numerous trees between Bellville and Mansfield and a trailer collapsed in Mansfield near Mock Road while people were inside of it.
Trained weather spotters reported nickel size hail in a swath from Lexington to Lucas. Wind were also estimated at 50 mph.
A trained weather spotter reported quarter size hail and wind gusts to 50 mph.
A trained weather spotter reported quarter size hail and a funnel cloud.
Amateur Radio operator reported three quarter inch size hail.
A trained weather spotter reported penny size hail.
A trained weather spotter reported quarter size hail with wind speeds estimated between 50 and 60 mph.
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, April 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: 509872, 509866, 509876, 509873, 509880, 509881, 509884, 509885, 509888, 509889, 512148, 509864, 512124.