A warm front lifted northeast across northern Ohio during the evening hours of June 18th. Showers and thunderstorms developed in association with this 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.
A warm front lifted northeast across northern Ohio during the evening hours of June 18th. Showers and thunderstorms developed in association with this front. A couple of the stronger thunderstorms 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 Jun 18, 6:38 PM EST, 2 hours 1 minute earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CLEVELAND OH 738 PM EDT FRI JUN 18 2010 .SYNOPSIS... HIGH PRESSURE ALONG THE EAST COAST WILL GIVE WAY TO AN APPROACHING COLD FRONT THAT WILL CROSS THE REGION SATURDAY EVENING AND NIGHT. HIGH PRESSURE WILL GRADUALLY BUILD INTO THE AREA THROUGH SUNDAY FROM THE NORTHERN GREAT LAKES. HIGH PRESSURE WILL MOVE OVER THE AREA MONDAY THEN SLIDE OFF TO THE EAST TUESDAY. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... A WELL DEVELOPED DERECHO IS HEADED OUR WAY AND A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR THE EXTREME WESTERN PORTIONS OF THE FORECAST AREA SO FAR. MOIST UNSTABLE AIR RESIDES OVER THE WESTERN PORTIONS OF THE FORECAST AREA EVEN THOUGH IT WAS FAIRLY SHALLOW IN THE EARLY MORNING SOUNDINGS. LINE OF THUNDERSTORMS CONTINUES TO FEED ON THIS LIMITED LOW LEVEL MOISTURE AND ADVANCE EAST. QUESTION STILL REMAINS AS TO HOW FAR EAST THIS FEATURE WILL GO. EARLIER RUC INDICATED ALL OF THE UPPER LEVEL SUPPORT DRAMATICALLY WEAKENS BY THE TIME IT REACHES A LINE FROM CLEVELAND TO MANSFIELD. HOWEVER...LATEST RUC NOW SHOWS A WELL DEVELOP VORT MAX RAGING THROUGH THE ENTIRE FORECAST AREA. THIS IS WHERE THE QUESTION REMAINS AS TO HOW FAR EAST THIS THING WILL GO. IS THE RUC MODEL GETTING SOME CONVECTIVE FEEDBACK NOW. REMAINS TO BE SEEN AND WE WILL CONTINUE TO MONITOR THE SITUATION. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY NIGHT/... COLD FRONT WILL REMAIN OFF TO THE WEST THROUGH MUCH OF THE DAY WITH PASSAGE THROUGH THE AREA BEGINNING LATER IN THE AFTERNOON OUT WEST THROUGH THE EVENING HOURS AND OVERNIGHT FOR EASTERN AREAS. MENTIONED SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE AREA ESPECIALLY GOING INTO THE AFTERNOON HOURS WITH HIGHER CHANCE POPS. HOWEVER...MENTION SCT SHRA/TSTMS EVENING DURING MORNING HOURS GIVEN CONVECTION THIS MORNING THAT TRACKED AS FAR EAST AS INDIANA WELL AHEAD OF THE FRONT BEFORE DISSIPATING. BOTH NAM AND GFS SHOWING BEST LIFT ALONG FRONT ACROSS NORTHEAST OHIO AND NW PA BEGINNING LATE SATURDAY AFTERNOON THROUGH EARLY OVERNIGHT SO INCREASED TO LIKELY POPS ACROSS THOSE LOCATIONS. WENT WITH A BLEND OF MAV AND MET GUIDANCE NUMBERS FOR TEMPS SAT. TEMPS WILL BE TRICKY WITH CLOUDS AND CONVECTION BUT ALL PLACES SHOULD AS LEAST REACH UPPER 80S. COLD FRONT FAIRLY PROGRESSIVE SO DROPPED BACK POPS QUICKLY ACROSS WESTERN AREAS THROUGH SATURDAY NIGHT AND THEN MENTIONED DRY CONDITIONS EVERYWHERE FOR SUNDAY WITH HIGH PRESSURE RIDGING INTO THE AREA. TEMPS WILL BE A BIT COOLER AND LESS HUMID CONDITIONS WILL BUILD IN ON SUNDAY. BOTH GFS AND NAM SHOWING A WEAKENING SHORT WAVE WITHIN THE FLOW PROGRESSING THROUGH THE AREA SUNDAY NIGHT. NOT SURE AT THIS TIME IF THIS IS ASSOCIATED WITH SOME CONVECTIVE FEEDBACK FROM A POSSIBLE THUNDERSTORM COMPLEX OVER THE PLAINS DURING THIS TIME...BUT KEPT CONDITIONS DRY SUNDAY NIGHT FOR THE AREA. SURFACE HIGH PRESSURE BUILDS OVER THE AREA ON MONDAY ALLOWING FOR SEASONABLE AND DRY CONDITIONS...THEN SLIDES OFF TO THE EAST TUESDAY. SOUTHERLY FLOW DEVELOPING ON BACK SLIDE OF HIGH PRESSURE WILL BRING WARMER AND HUMID CONDITIONS BACK INTO THE REGION THROUGH TUESDAY AND CONTINUING INTO MIDWEEK. BROUGHT CHANCE POPS INTO THE AREA FROM WEST TO EAST BEGINNING MONDAY NIGHT AND CONTINUING INTO TUESDAY. && .LONG TERM /TUESDAY THROUGH FRIDAY/... UPPER RIDGE LOCATED ACROSS THE FORECAST AREA WEDNESDAY AND THURSDAY HOWEVER SOME SCATTERED THUNDERSTORMS POSSIBLE. AS I STATED SOME SCATTERED THUNDERSTORMS PROBABLE FOR WEDNESDAY AND THURSDAY AS SOME WEAK WEATHER IMPULSES MOVES OVER TOP OF THE RIDGE WHICH WILL BE FOLLOWED BY A COLD FRONT MOVING ACROSS THE AREA LATE THURSDAY INTO FRIDAY. TEMPERATURES NEAR OR SLIGHTLY ABOVE NORMAL THROUGH THE PERIOD WITH HIGHS IN THE 80S AND LOWS IN THE 60S. BY FRIDAY THE WEAKENED FRONT SHOULD ALLOW JUST A LITTLE BIT MORE OF RIDGING TO RE-BUILD BACK INTO THE FORECAST AREA FOR FRIDAY AND SATURDAY. AT THIS MOMENT...WILL KEEP THINGS DRY FRIDAY AND SATURDAY. && .AVIATION /23Z FRIDAY THROUGH WEDNESDAY/... DERECHO CONTINUES TO MOVE TOWARD NW OHIO FROM INDIANA. THE TREND SHOULD BE SOWN ON THE INTENSITY OF THIS CONVECTION BUT BELIEVE IT COULD REACH 45+ KNOT WIND GUSTS AS IT MOVES TOWARD KFDY AND KTOL. AT ANY RATE SOME CONVECTION WILL GET INTO KFDY AND KTOL BETWEEN 01Z AND 02Z. UNCERTAINTY THEN EXISTS ON HOW FAST TO DECREASE THE THE COVERAGE AS IT MOVES EASTWARD INTO NORTH CENTRAL OHIO. FOR NOW WILL NOT MENTION A CB EAST OF A KCLE TO KCAK LINE THROUGH 07Z. ANOTHER WAVE OF THUNDERSTORMS WILL MOVE FROM EASTERN IOWA AND WILL BECOME THE SECOND WAVE OF SHOWERS/THUNDERSTORMS THAT MAY MOVE INTO THE AREA TOWARD SUNRISE. THIS WAVE SHOULD MOVE ACROSS MUCH OF NORTHERN OHIO/NW PA THROUGH THE MORNING. THE NEXT POTENTIAL WILL ARRIVE AS A COLD FRONT SWEEPS ACROSS THE REGION DURING THE AFTERNOON. MADE AN ATTEMPT TO TIME THESE PERIODS OF THUNDER WITH AT LEAST A CB MENTION. DEFINITELY WILL SEE NON-VFR CONDITIONS WITH ANY THUNDERSTORMS. WINDS WILL BECOME GUSTY IN THE WAKE OF THE FRONT AS IT MOVES FROM WEST TO EAST. THESE SW TO W WINDS WILL GUST AROUND 25 KNOTS. .OUTLOOK...NON-VFR CONDITIONS POSSIBLE MONDAY IN/NEAR THUNDERSTORMS. && .MARINE... WINDS ARE CURRENTLY EXPECTED TO INCREASE FROM THE SOUTH TO 10 TO 15 KNOTS TONIGHT THEN BECOME SW TO 10 TO 15 KNOTS SATURDAY MORNING AS A WARM FRONT LIFTS NORTH OF THE LAKE. A WEAKENING COLD FRONT REMAINS ON TRACK TO CROSS THE LAKE SAT EVENING SHIFTING THE FLOW TO NW. AT THE PRESENT TIME SMALL CRAFT CONDITIONS ARE NOT EXPECTED. HIGH PRESSURE MOVING INTO THE LAKE BY SUNDAY NIGHT WILL DIMINISH THE FLOW WITH LIGHT AND VARIABLE CONDITIONS THROUGH MONDAY MORNING. THE HIGH WILL SHIFT INTO THE SE STATES FOR TUE TO ALLOW A SE FLOW TO DEVELOP MON NIGHT AND BECOME SOUTH TUE AND FINALLY SW FOR WED AT ABOUT 10 TO 15 KNOTS. THE MODELS ARE IN AGREEMENT THROUGH MONDAY SO CONFIDENCE IN FORECAST FAIRLY HIGH...HOWEVER BY TUE AND WED THERE ARE DIFFERENCES BUT IN EITHER CASE A S TO SW FLOW SHOULD OCCUR WED. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...NONE. PA...NONE. MARINE...NONE. && SYNOPSIS...ABE NEAR TERM...LOMBARDY SHORT TERM...ABE LONG TERM...BC AVIATION...MULLEN MARINE...ADAMS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CLEVELAND OH 937 PM EDT FRI JUN 18 2010 LEZ142>148-162>168-OHZ003-006>014-017>022-027>032-036>038-047-089- 200145- 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- 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-LUCAS-WOOD- OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-ASHTABULA INLAND- HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-WYANDOT-CRAWFORD-RICHLAND- ASHLAND-WAYNE-STARK-MARION-MORROW-HOLMES-KNOX-ASHTABULA LAKESHORE- 937 PM EDT FRI JUN 18 2010 ...SEVERE THUNDERSTORM WATCH 345 IN EFFECT UNTIL 1 AM EDT SATURDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE...NORTH CENTRAL OHIO...NORTHEAST OHIO AND NORTHWEST OHIO. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THERE IS THE POSSIBILITY FOR STRONG TO SEVERE THUNDERSTORMS ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. LEZ061-149-169-OHZ023-033-PAZ001>003-200145- LAKE ERIE OPEN WATERS FROM RIPLEY TO BUFFALO NY- CONNEAUT OH TO RIPLEY NY- LAKE ERIE OPEN WATERS FROM CONNEAUT OH TO RIPLEY NY-TRUMBULL- MAHONING-NORTHERN ERIE-SOUTHERN ERIE-CRAWFORD PA- 937 PM EDT FRI JUN 18 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE...NORTHEAST OHIO AND NORTHWEST PENNSYLVANIA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THERE IS THE POSSIBILITY FOR STRONG TO SEVERE THUNDERSTORMS ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 850 PM EDT FRI JUN 18 2010 OHZ003-006>008-017-018-027-036-190145- HANCOCK-LUCAS-MARION-OTTAWA-SANDUSKY-SENECA-WOOD-WYANDOT- 850 PM EDT FRI JUN 18 2010 ...SPECIAL WEATHER STATEMENT FOR HANCOCK...LUCAS...NORTHWESTERN MARION...WESTERN OTTAWA...WESTERN SANDUSKY...WESTERN SENECA...WOOD AND WYANDOT COUNTIES UNTIL 945 PM EDT... AT 842 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE IN EXTREME WESTERN OHIO. WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THE THUNDERSTORMS AS THEY MOVE INTO THE AREA. THESE STORMS WILL BE NEAR... WHITEHOUSE AND SYLVANIA BY 940 PM EDT. HOLLAND...WATERVILLE...CUSTAR AND WESTON BY 945 PM EDT. THE TOWNS OF BERKEY...GRAND RAPIDS...OTTAWA HILLS...MAUMEE...MILTON CENTER...TONTOGANY AND HASKINS ARE ALSO IN THE PATH OF THESE STORMS. LOMBARDY
The Detroit radar (KDTX), 121 km away, was scanning. The volume nearest the first event began at 01:40 UTC.
8 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds downed a few trees.
Thunderstorm winds downed a tree.
Thunderstorm winds snapped an utility pole.
A tree was reported down across a road.
Thunderstorm winds downed a large tree.
Thunderstorm winds downed several trees and large limbs.
Thunderstorm winds downed several large tree limbs.
Thunderstorm winds downed a large tree.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2010Every state in 2010This day in weather historyWarnings in Ohio, June 2010
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: 231448, 231453, 231449, 231452, 231451, 231450, 231454, 231455.