A strong upper level disturbance entered the Ohio Valley when the atmosphere was already very unstable. The resulting thunderstorms produced large hail and damaging winds.
Every event with a place to put it. Tap one for its entry below.
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 ILN wrote it up.
A strong upper level disturbance entered the Ohio Valley when the atmosphere was already very unstable. The resulting thunderstorms produced large hail and damaging winds.
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 Wilmington, OH wrote its last area forecast discussion before the first event at Jun 19, 4:30 AM EST, 1 hour 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 530 AM EDT FRI JUN 19 2009 .SYNOPSIS... A WARM FRONT WILL LIFT ACROSS THE REGION EARLY TODAY. A COLD FRONT WILL MOVE THROUGH THE OHIO VALLEY TONIGHT THROUGH SATURDAY MORNING. HIGH PRESSURE WILL BUILD IN BEHIND THIS FRONT ON SUNDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... AMPLIFIED MID/UPPER LEVEL FLOW PATTERN WITH ACTIVE STORM PATTERN AROUND THE PERIPHERY OF RIDGE OVER THE LWR MS VLY. MCS HAS DEVELOPED OVER SRN GREAT LAKES AT THE NOSE OF LOW LEVEL JET. THIS LOW LEVEL JET WEAKENS SOME AS IT PIVOTS INTO WESTERN OHIO. FORCING AROUND 900MB COMBINED WITH ELEVATED INSTBY OF 1500-2000 J/KG WL ALLOW FOR A FAVORABLE TSTM ENVIRONMENT. LOOKING AT 850-300MB THERMAL WIND EXPECT THIS THUNDERSTORM COMPLEX TO DIVE SE INTO ILN/S NRN FA EARLY THIS MORNING. DAMAGING WINDS WILL BE THE MAIN THREAT WITH DELTA THETA-E VALUES AROUND 18 DEGREES. SEVERE THUNDERSTORM WATCH NUMBER 476 IS OUT UNTIL NOON FOR THIS MCS. AFTER THIS MORNINGS MCS...THE REGION WILL BE WARM SECTORED WITH WARM FRONT LIFTING NORTH INTO THE SRN GREAT LAKES. EXPECT A BRIEF BREAK IN THE CONVECTIVE ACTIVITY INTO THE LATE AFTN WHEN ANOTHER S/W BEGINS TO APPROACH FROM THE WEST. FOR TODAY HAVE TRENDED POPS FROM CAT ACRS NW TO SLIGHT CHC ACRS THE FAR SOUTH WHERE CAP MAY INHIBIT CONVECTIVE DEVELOPMENT. DUE TO CLD COVER FROM THIS MORNINGS COMPLEX HAVE TWEAKED TEMPS SLIGHTLY BLO MAV GUID. EVEN THESE READINGS WILL BE RATHER WARM AND HEAT INDICES ACRS THE CENTRAL AND SOUTH WILL BE IN THE UPPER 90S. HAVE HIGHLIGHTED THE HEAT IN HWO. && .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/... SIGNIFICANT S/W TO DROP THRU THE GREAT LAKES BETWEEN 06Z AND 12Z. 40-45KT LOW LEVEL JET TO PROVIDE GOOD FORCING LATE TONIGHT. THIS FORCING COMBINED WITH AN AXIS OF MODERATE INSTBY OF 1500 TO 2000 J/KG AHD OF APPROACHING COLD FRONT WILL RESULT WIDESPREAD THUNDERSTORM ACTIVITY. HAVE INCREASED POPS TO CATEGORICAL ACRS THE NORTH AND CENTRAL AND HAVE A MENTION OF PSBL SEVERE WITH INITIAL SUPERCELLS EVOLVING INTO MULTICELL STORMS. TEMP WISE...HAVE TRENDED LOWS A LTL ABOVE MAV FOR TONIGHTS LOWS. MODER INSTABILITY TO RE-DEVELOP SAT AFTN AHD OF COLD FRONT DROPPING THRU SRN FA SAT AFTN. HAVE OPTED FOR HIGH CHC POPS ACRS THE SOUTH AND THEN END ALL MENTION OF THUNDER EARLY SAT EVENING. HAVE BUMPED UP SATURDAYS HIGH TEMPS BUT STILL KEPT THEM GENERALLY COOLER THAN MAV GUIDANCE. MID LEVEL FLOW BECOMES NWRLY WITH SFC HIGH BUILDING IN SAT NIGHT INTO SUNDAY. HAVE TRENDED TEMPS A LTL BLO MAV GUID BOTH PDS. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... MODELS ARE TRYING TO INDICATE MID/UPPER LEVEL RIDGE NOSING INTO THE GREAT LAKES REGION FROM THE SOUTHWEST. THIS WILL LEAVE OUR AREA ON THE EDGE OF THE TRANSITION AREA BETWEEN THE RIDGE OVER THE CENTRAL US AND THE TROUGH ACROSS THE EAST COAST. THIS MAY RESULT IN SOME LOW POPS MONDAY THROUGH TUESDAY...ESPECIALLY ACROSS THE EASTERN PORTIONS OF OUR FA. HOWEVER...CHANCE APPEARS TO BE LOW ENOUGH TO MAINTAIN A DRY FORECAST ATTM. WILL ALSO CONTINUE WITH SLIGHTLY ABOVE NORMAL TEMPERATURES THROUGH EARLY NEXT WEEK. MODELS IN RELATIVELY GOOD AGREEMENT THROUGH BASICALLY THE END OF THE FORECAST PERIOD. OPERATIONAL GFS TRIES TO SHUNT THE RIDGE BACK WEST OF THE OHIO VALLEY ON THURSDAY...WITH A DEEPER TROUGH ALONG THE EAST COAST...BUT THIS IS NOT SUPPORTED BY THE GFS ENSEMBLE MEMBERS OR ECMWF. WILL KEEP A GRADUAL WARMING TREND THROUGH THE END OF THE PERIOD...AND DRY CONDITIONS. && .AVIATION /09Z FRIDAY THROUGH TUESDAY/... FLIGHT CONDITIONS WILL BE VFR THROUGH MOST OF THE FORECAST. MIST MAY REDUCE VISIBILITIES TO MVFR AT LUK AND ILN FOR A FEW HOURS EARLY IN THE PERIOD. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND BECOME NUMEROUS IN THE VICINITY OF NORTHERN SITES AFTER 00Z. OUTLOOK...THUNDERSTORMS POSSIBLE SATURDAY. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...NONE. KY...NONE. IN...NONE. && SYNOPSIS...AR NEAR TERM...AR SHORT TERM...AR LONG TERM...HATZOS/JGL AVIATION...CONIGLIO
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 438 AM EDT FRI JUN 19 2009 INZ050-058-059-OHZ026-034-035-042>046-051>056-060>065-200845- WAYNE-FAYETTE IN-UNION IN-HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY-LOGAN- UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-FRANKLIN OH-LICKING- PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY-FAIRFIELD- 438 AM EDT FRI JUN 19 2009 ...SEVERE THUNDERSTORM WATCH 476 IN EFFECT UNTIL NOON EDT TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL INDIANA...CENTRAL OHIO...MIAMI VALLEY OF OHIO AND WEST CENTRAL OHIO. .DAY ONE...TODAY AND 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. ANOTHER CHANCE OF SEVERE WEATHER IS POSSIBLE TONIGHT AS A COLD FRONT APPROACHES FROM THE WEST. DAMAGING WINDS WILL BE THE MAIN SEVERE WEATHER THREAT. LARGE HAIL AND ISOLATED TORNADOES WILL ALSO BE A POSSIBILITY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE PROBABILITY OF HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED TODAY. INZ073>075-080-KYZ089>100-OHZ077>079-081-088-200845- RIPLEY-DEARBORN-OHIO-SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON- CAMPBELL-OWEN-GRANT-PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-HAMILTON- CLERMONT-BROWN-ADAMS-SCIOTO- 438 AM EDT FRI JUN 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN KENTUCKY...SOUTH CENTRAL OHIO AND SOUTHWEST OHIO. .DAY ONE...TODAY AND TONIGHT. SEVERE WEATHER IS POSSIBLE TONIGHT AS A COLD FRONT APPROACHES FROM THE WEST. DAMAGING WINDS WILL BE THE MAIN SEVERE WEATHER THREAT. LARGE HAIL AND ISOLATED TORNADOES WILL ALSO BE A POSSIBILITY. TEMPERATURES WILL PUSH INTO THE LOWER 90S TODAY AND WILL COMBINE WITH DEWPOINTS IN THE LOWER 70S TO PRODUCE HEAT INDEX VALUES NEAR 100 DEGREES. PEOPLE WITH RESPIRATORY PROBLEMS AND OTHER HEALTH AILMENTS MIGHT WANT TO LIMIT THEIR TIME OUTDOORS ON FRIDAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE PROBABILITY OF HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. INZ066-OHZ070>074-080-082-200845- FRANKLIN IN-BUTLER-WARREN-CLINTON-ROSS-HOCKING-HIGHLAND-PIKE- 438 AM EDT FRI JUN 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST INDIANA...CENTRAL OHIO...SOUTH CENTRAL OHIO AND SOUTHWEST OHIO. .DAY ONE...TODAY AND TONIGHT. SEVERE WEATHER WILL BE POSSIBLE THIS MORNING AS A WARM FRONT LIFTS NORTH ACROSS THE REGION. DAMAGING WINDS WILL BE THE MAIN SEVERE WEATHER THREAT. ANOTHER CHANCE OF SEVERE WEATHER IS POSSIBLE TONIGHT AS A COLD FRONT APPROACHES FROM THE WEST. DAMAGING WINDS WILL BE THE MAIN SEVERE WEATHER THREAT. LARGE HAIL AND ISOLATED TORNADOES WILL ALSO BE A POSSIBILITY. TEMPERATURES WILL PUSH INTO THE LOWER 90S TODAY AND WILL COMBINE WITH DEWPOINTS IN THE LOWER 70S TO PRODUCE HEAT INDEX VALUES NEAR 100 DEGREES. PEOPLE WITH RESPIRATORY PROBLEMS AND OTHER HEALTH AILMENTS MIGHT WANT TO LIMIT THEIR TIME OUTDOORS ON FRIDAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE PROBABILITY OF HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 538 AM EDT FRI JUN 19 2009 OHZ026-035-044-191015- LOGAN OH-AUGLAIZE OH-HARDIN OH- 538 AM EDT FRI JUN 19 2009 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN HARDIN...EASTERN AUGLAIZE AND NORTHERN LOGAN COUNTIES THROUGH 615 AM EDT... AT 536 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM LOCATED NEAR WAYNESFIELD...MOVING EAST AT 30 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 40 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE... ROUNDHEAD...MCGUFFEY...WALTON...ADA...BELLE CENTER...SILVER CREEK...BIG SPRINGS...KENTON...MENTZER AND RIDGEWAY. FREQUENT CLOUD TO GROUND LIGHTNING WILL ALSO OCCUR. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. HATZOS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 607 AM EDT FRI JUN 19 2009 OHZ026-044>046-191045- DELAWARE OH-UNION OH-LOGAN OH-HARDIN OH- 607 AM EDT FRI JUN 19 2009 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN HARDIN...NORTHEASTERN LOGAN...NORTHERN UNION AND NORTHWESTERN DELAWARE COUNTIES THROUGH 645 AM EDT... AT 607 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM LOCATED NEAR BIG SPRINGS...MOVING EAST AT 35 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE... RIDGEWAY...WEST MANSFIELD...MOUNT VICTORY...BYHALIA...SOMERSVILLE... BROADWAY...ESSEX...RICHWOOD...PHARISBURG...MAGNETIC SPRINGS... DELAWARE STATE PARK AND RADNOR. FREQUENT CLOUD TO GROUND LIGHTNING WILL ALSO OCCUR. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. HATZO
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 659 AM EDT FRI JUN 19 2009 OHZ046-055-056-065-191145- FAIRFIELD OH-FRANKLIN OH-LICKING OH-DELAWARE OH- 659 AM EDT FRI JUN 19 2009 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN DELAWARE... WESTERN LICKING...FRANKLIN AND NORTHERN FAIRFIELD COUNTIES THROUGH 745 AM EDT... AT 657 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM DELAWARE TO GROVE CITY...MOVING EAST AT 40 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE...DOWNTOWN COLUMBUS...GROVE CITY...WORTHINGTON...MARBLE CLIFF...PATASKALA...RIVERLEA...GRANDVIEW HEIGHTS...ALUM CREEK STATE PARK...MINERVA PARK...WESTERVILLE AND BALTIMORE. THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING VERY HEAVY RAIN... DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE ROAD AND AVOID FLOOD PRONE AREAS. HATZOS
The Cincinnati radar (KILN), 117 km away, was scanning. The volume nearest the first event began at 11:01 UTC.
5 hail, 1 thunderstorm wind, 1 flash flood. Local standard time, as filed.
An awning over a gas station collapsed.
Occurred near the intersection of U.S. 22 and State Route 188.
Occurred near the intersection of U.S. 22 and State Route 188.
Numerous roads were closed throughout Fairfield county. Evacuations took place in Haydenville where water rushing down a hill caused the backs of two residences to be damaged. This was near U.S. Route 33 and State Route 595.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2009Every state in 2009This day in weather historyWarnings in Ohio, June 2009
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: 183217, 183226, 183224, 183220, 183222, 183223, 183235.