A warm front was moving into northwestern Ohio during the afternoon and evening hours. Isolated thunderstorms developed, producing torrential rainfall.
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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 IWX wrote it up.
A warm front was moving into northwestern Ohio during the afternoon and evening hours. Isolated thunderstorms developed, producing torrential rainfall. This combine with very slow movement caused flash flooding across portions of Henry county.
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 Northern Indiana wrote its last area forecast discussion before the first event at Jun 19, 3:04 PM EST, 2 hours 6 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 404 PM EDT SUN JUN 19 2011 .SHORT TERM... MID LEVEL LOW WILL LIFT OUT OF WESTERN CONUS INTO CENTRAL CONUS DURING THE PERIOD WHILE SURFACE LOW MOVES INTO EASTERN NEBRASKA BY 12Z TUE. WARM FRONT EXTENDING EAST FROM THIS LOW WILL TRY TO MOVE NORTH THROUGH OUR AREA MONDAY AFTERNOON AND NIGHT WITH YET ANOTHER CONVECTIVE SYSTEM POSSIBLE NORTH OF THIS BOUNDARY. NO CLEAR SOLUTIONS IN THE SHORT TERM PERIOD WITH RESPECT TO CONVECTIVE TRENDS. CIRRUS AND SUBSIDENCE FROM SOUTHERN CONVECTIVE SYSTEM TODAY HAS LIMITED DESTABILIZATION OVER OUR AREA AND ONLY A FEW VERY ISOLATED AND SHORT LIVED SHRA HAVE DEVELOPED. STILL POSSIBLE WITH THINNING CIRRUS SHIELD AND WEAK INSTABILITY COUPLED WITH WEAK BOUNDARY AND SHORT WAVE LATE THIS AFTERNOON WE COULD SPARK A FEW ADDITIONAL TSRA. WILL GO WITH VERY LOW CHANCE POPS FOR THIS SCENARIO THROUGH EARLY EVENING. FOCUS THEN SHIFTS TO ANY POSSIBLE CONVECTIVE SYSTEMS OVERNIGHT INTO MONDAY. 12Z NAM INDICATING 40 TO 50 KT MID LEVEL SPEED MAX ALONG WITH INCREASING LOW LEVEL JET IMPINGING ON WESTERN AREAS 12Z TO 15Z MONDAY AS SURFACE WARM FRONT TRIES TO FINALLY LIFT NORTH. GFS SIMILAR AS WELL. THIS WOULD LEAD TO SHRA/TSRA MOVING ACROSS THE FORECAST AREA DURING THE DAY. HIGHER RESOLUTION 4KM SPC WRF DOES NOT HAVE THIS AND DEVELOPS VERY LITTLE OVER THE AREA. CONVECTIVE TRENDS HAVE BEEN DIFFICULT TO MODEL LAST SEVERAL DAYS AND LITTLE CONFIDENCE IN ANY PARTICULAR SOLUTION AT THIS TIME. WILL THEREFORE CONTINUE WITH LOW CHANCE POPS FROM LATE TONIGHT AND THROUGH THE DAY ON MONDAY. IF MCS CAN DEVELOP OVERNIGHT AS INDICATED BY NAM12 AND GFS...SEVERE WEATHER MONDAY WOULD BE POSSIBLE WITH 0-6KM SHEAR OF 30 TO 40 KNOTS. BUILDING HEIGHTS AND WARMING ALOFT MONDAY NIGHT SUGGEST A BRIEF BREAK FROM ANY CONVECTION EXCEPT FAR NORTH AND EAST CLOSER TO BOUNDARY. && .LONG TERM... TUESDAY THROUGH SUNDAY...A DEEP UPPER LOW WILL MOVE OUT OF THE CENTRAL PLAINS TUESDAY AND THEN OCCLUDE IN THE UPPER MIDWEST. FOR THIS PACKAGE...USED A BLEND OF THE GFS AND CANADIAN ENSEMBLES... THOUGH CONFIDENCE IN ANY ONE SOLUTION AT THIS POINT IS LOW. THE ECMWF OPERATIONAL RUN HAS HAD POOR RUN TO RUN CONSISTENCY RECENTLY HANDLING THIS OCCLUDING SYSTEM. THE GFS 12Z OPERATION RUN APPEARS TO HAVE TOO MUCH ENERGY IN THE BASE OF THE TROF IN THE FORM OF A CUT OFF LOW THURSDAY. AS FOR COMPUTER GENERATED MODEL GUIDANCE...THE OPERATIONAL MEX MOS RAIN CHANCES IN THE LIKELY CATEGORY 5 OF 6 PERIODS FROM TUESDAY NIGHT THROUGH FRIDAY LOOK TOO HIGH GIVEN THIS PATTERN. ALSO...GFS ENSEMBLE FORECAST UNCERTAINTY ACCORDING TO COMET/UCAR RESEARCH FOR THIS RUN WAS MUCH BELOW NORMAL...AND WAS APPROACHING 8 STANDARD DEVIATIONS WHEN COMPARED TO THE 21 ENSEMBLE MEMBERS. THE INITIAL ROUND OF CONVECTION SHOULD REACH THE AREA BY LATE TUESDAY AND TUESDAY EVENING AHEAD OF THE FIRST FRONT. THE ONGOING GRIDS/FORECAST APPEAR ON TRACK IN THIS REGARD...SO FEW CHANGES MADE. GIVEN THE EXPECTED UPPER LOW TRACK...THE DRY SLOT SHOULD TRANSLATE ACROSS THE AREA WEDNESDAY AHEAD OF A STRONGER FRONT. STILL TOO MUCH UNCERTAINTY WITH THE TIMING OF THIS SYSTEM...SO HAVE NOT MADE ANY CHANCES WEDNESDAY THROUGH THURSDAY TO RAIN CHANCES. KEPT DRY CONDITIONS THURSDAY NIGHT THROUGH THE END OF THE PERIOD AS THE MEAN LONG WAVE TROF SHIFTS A LITTLE MORE EAST BUT REMAINS OVER THE REGION. && .AVIATION... COMPLICATED FORECAST THIS AFTERNOON WITH WEAK BOUNDARY AND INSTABILITY ACROSS THE AREA. HOWEVER...CIRRUS AND SUBSIDENCE FROM SOUTHERN CONVECTIVE COMPLEX HAS LIMITED FURTHER DESTABILIZATION EARLY THIS AFTERNOON. SATELLITE SHOWS CLOUD COVER THINNING AND EXPECT A LITTLE MORE INSTABILITY THIS AFTERNOON. WEAK SHORT WAVE ACROSS IL EARLY THIS AFTERNOON WILL MOVE OVER OUR AREA LATER AND THIS MAY BE ENOUGH TO SPARK A FEW TSRA. HOWEVER...COVERAGE APPEARS LOW BASED ON LATEST 12Z CONVECTIVE MODELS SO HAVE REMOVED THE TEMPO GROUP FROM TAFS AND REPLACED WITH CB MENTION. WILL MONITOR TRENDS AND AMEND IF ANY DEVELOPMENT OCCURS NEAR TAF SITES. NAM12 INDICATING POSSIBLE MCS OVERNIGHT NORTH OF WARM FRONTAL BOUNDARY AND POSSIBLY IMPACTING TAF SITES AFTER DAYBREAK ON MONDAY. CONFIDENCE LOW AND HIGHER RESOLUTION 4KM MODEL NOT INDICATING ANY DEVELOPMENT THIS FAR NORTH. WITH RECENT POOR CONVECTIVE PERFORMANCE BY MODELS HAVE OPTED FOR JUST A CB GROUP MONDAY MORNING. FOG ALSO A CONCERN LATE TONIGHT IF SKIES CLEAR WITH LIGHT WINDS AND MOIST BOUNDARY LAYER. KEPT A MVFR VIS IN OVERNIGHT BUT IFR POSSIBLE AGAIN TOWARD DAYBREAK. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SHORT TERM...LASHLEY LONG TERM...SKIPPER AVIATION...LASHLEY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORTHERN INDIANA 510 AM EDT SUN JUN 19 2011 INZ003>009-012>018-020-022>027-032>034-LMZ043-046-MIZ077>081-OHZ001- 002-004-005-015-016-024-025-201000- LA PORTE-ST. JOSEPH IN-ELKHART-LAGRANGE-STEUBEN-NOBLE-DE KALB-STARKE- PULASKI-MARSHALL-FULTON IN-KOSCIUSKO-WHITLEY-ALLEN IN-WHITE-CASS IN- MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-JAY- NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI- BERRIEN-CASS MI-ST. JOSEPH MI-BRANCH-HILLSDALE-WILLIAMS-FULTON OH- DEFIANCE-HENRY-PAULDING-PUTNAM-VAN WERT-ALLEN OH- INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND... MISHAWAKA...ELKHART...GOSHEN...LAGRANGE...TOPEKA...ANGOLA... KENDALLVILLE...LIGONIER...AUBURN...GARRETT...KNOX...NORTH JUDSON... WINAMAC...FRANCESVILLE...PLYMOUTH...BREMEN...ROCHESTER...WARSAW... WINONA LAKE...COLUMBIA CITY...SOUTH WHITLEY...FORT WAYNE... MONTICELLO...BROOKSTON...LOGANSPORT...PERU...WABASH... NORTH MANCHESTER...HUNTINGTON...BLUFFTON...OSSIAN...DECATUR... BERNE...MARION...HARTFORD CITY...MONTPELIER...PORTLAND...NILES... BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS... STURGIS...THREE RIVERS...COLDWATER...HILLSDALE...BRYAN...WAUSEON... ARCHBOLD...DEFIANCE...NAPOLEON...PAULDING...ANTWERP...OTTAWA... PANDORA...VAN WERT...DELPHOS...LIMA 510 AM EDT SUN JUN 19 2011 /410 AM CDT SUN JUN 19 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO... SOUTHWEST LOWER MICHIGAN...NORTHERN INDIANA AND THE NEARSHORE WATERS OF SOUTHEASTERN LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON...ESPECIALLY NORTH AND EAST OF A SOUTH BEND TO FORT WAYNE LINE. LOCALIZED HEAVY RAINFALL IS POSSIBLE WITH THE STRONGER STORMS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A CHANCE FOR THUNDERSTORMS MONDAY AND AGAIN FROM TUESDAY AFTERNOON THROUGH WEDNESDAY. SEVERE STORMS WITH DAMAGING WINDS MAY DEVELOP ON MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
510 PM EDT SUN JUN 19 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0455 PM HEAVY RAIN NAPOLEON 41.39N 84.13W
06/19/2011 M2.53 INCH HENRY OH COCORAHS
2.53 INCHES OVER THE PAST 1.5 HOURS
&&
EVENT NUMBER IWX1101055
SCThe Northern Indiana radar (KIWX), 122 km away, was scanning. The volume nearest the first event began at 22:09 UTC.
1 flash flood. Local standard time, as filed.
Nearly three inches of rain fell within a one hour period across portions of Henry county, mainly northwest of Napoleon. Garrett Creek rapidly rose and went over its banks, resulting in the closure of an area near the intersection of County Road T and County Road 18.
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, June 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: 324727.