An east-west boundary and strong mid level wind flow combined with several left-over disturbances from convection to the west, to allow for thunderstorm develop. Some of these storms became severe with damaging winds dominating the reports.
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 IWX wrote it up.
An east-west boundary and strong mid level wind flow combined with several left-over disturbances from convection to the west, to allow for thunderstorm develop. Some of these storms became severe with damaging winds dominating the reports.
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 12, 12:44 PM EST, 24 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 144 PM EDT SAT JUN 12 2010 .AVIATION.../18Z TAFS/ MAINLY MVFR THRU THE PD. SCATTERED SHOWERS AND THUNDERSTORMS CURRENTLY DEVELOPING ACROSS THE FORECAST AREA AND EXPECT PRECIP TO AFFECT KSBN NEAR TAF ISSUANCE AND KFWA SHORTLY AFTER. BRIEF PDS OF IFR VISBYS EXPECTED AS EXTREMELY HEAVY RAINFALL IS POSSIBLE WITH ANY THUNDERSTORM. AS ALSO SEEN WITH PREVIOUS THUNDERSTORMS EARLIER TODAY ACROSS NORTHERN IL...WIND GUSTS WERE NEAR 30KTS. OTHERWISE WINDS WILL BE AT OR BELOW 10KTS...CALMING OVERNIGHT...AND INCREASING BY LATE SUN MRNG/AFTERNOON. OTHER MAIN CONCERN THIS PD IS FOG/HAZE DEVELOPMENT OVERNIGHT AND INTO THE MORNING HOURS ON SUNDAY. KEPT WITH PREVIOUS TAFS IN TERMS OF VISBYS...HOWEVER...WILL NEED TO MONITOR WITH FURTHER ISSUANCES FOR POSSIBLE DROPS INTO THE IFR RANGE. THEN FOR SUNDAY MORNING...FOG/HAZE WILL BEGIN TO LIFT SHORTLY AFTER SUNRISE AND WITH FRONTAL BOUNDARY STILL DRAPED ACROSS THE NORTHERN PORTION OF THE FCST AREA...ADDED MENTION OF CB TO LEAN TOWARDS SHOWER/TSTORM DEVELOPMENT AS AREA WILL STILL BE TAPPED INTO DEEPER MOISTURE. && PREV DISCUSSION... /ISSUED 423 AM EDT SAT JUN 12 2010/ SHORT TERM.../TODAY THROUGH SUNDAY NIGHT/... UPPER LOW DRIFTING SLOWLY THROUGH SOUTH CENTRAL INDIANA AS ACCOMPANYING COMPACT LOW LEVEL JET CONTINUES TO INTENSIFY. DEVELOPMENT OF PRECIP HAS BEEN SLOW BUT WITH MODEL PROGS SUGGESTING MOST INTENSE LLEVEL FORCING HAS YET TO GEAR UP IT REMAINS TOO EARLY TO ABANDON CONCERNS OVER LOCALLY HEAVY RAINFALL IN THE EXTREME SOUTHEAST. THOUGH IT APPEARS MOST SIGNIFICANT RAINFALL THREAT IS TO REMAIN SOUTH OF THE CWA BORDER WITH SHRA DEVELOPING AT PRESS TIME HAVE DECIDED TO REMAIN ON CAUTIOUS SIDE AND KEEP FFA/LIKELY POPS IN THE SOUTH TO SEE HOW TRENDS CONTINUE OVER THE NEXT COUPLE OF HOURS. BEST CHANCE REMAINS IN THE SOUTHEAST THROUGH LATE MORNING AS UPPER LOW CONTINUES TO MOVE INTO WEST CENTRAL OHIO. FURTHER AHEAD...THE AREA REMAINS IN VERY HUMID AIRMASS WITH HIGHS STUCK IN THE MID/UPPER 80S AND DEWPOINTS NEAR 70. VERY MUGGY CONDITIONS WILL CONTINUE THROUGH THE WEEKEND BEFORE SOME RELIEF ARRIVES SUNDAY NIGHT. CONVECTION FIRING UPSTREAM OVER SOUTHERN NEB/KANSAS HAS EVOLVED INTO A LARGE MCS WITH ADDNL STORMS INITIATING OVER CENTRAL IOWA. ANY REMNANTS WHICH SURVIVE THE TREK EAST SHOULD...PER CORFIDI/850-300 MEAN WIND PROGS REMAIN NORTH OF THE CWA. HOWEVER...THIS COULD INTRODUCE MESOSCALE FEATURES TO HELP SERVE AS FOCUS FOR STORMS FIRING THIS AFTERNOON AS OUR AIRMASS DESTABILIZES ONCE AGAIN. NAM BUFR SOUNDINGS INDICATING 2000 J/KG SBCAPES BY AFTERNOON DESPITE 2M TEMPS THAT APPEAR TOO COOL. GIVEN THAT MESOSCALE FEATURES WILL DRIVE DIURNAL CONVECTION WILL KEEP A BLANKET POP AS ANY SPATIAL DETAIL IS IMPOSSIBLE TO GAUGE. WHILE MODEL DETAILS ARE FUZZY SAT NIGHT LLEVEL JET CONVERGENCE IS SHOWN UPSTREAM AND ANY NOCTURNAL DEVELOPMENT WOULD BE EXPECTED TRACK EASTWARD INTO THE AREA ALONG FRONTAL BOUNDARY WHICH CONTINUES TO HANG AROUND THROUGH THE LOWER GREAT LAKES. WILL AGAIN MAINTAIN CHC POP CWA WIDE FOR LACK OF MORE GRANULAR DETAIL. ON SUNDAY...SUBSTANTIAL SHORTWAVE DROPPING INTO THE NORTHER GREAT LAKES WILL ELICIT A RESPONSE INTO THE REGION AS A WEAKER MID LEVEL SHRTWV PASSES OVERHEAD AND SFC REFLECTION RIPPLES ALONG THE STALLED BOUNDARY. STILL IN AGREEMENT WITH PREV SHIFT THAT VERY MOIST AIRMASS WITH PWATS STILL AOA 2 INCHES/BNDRY PARALLEL FLOW/MARGINAL DEEP SHEAR LEADS TO PRIMARY THREAT OF HEAVY RAIN THOUGH ITS TOO EARLY TO RULE OUT WIND POTENTIAL IF STORM ORGANIZATION EVOLVES. STORMS WILL CONTINUE TO BE POSSIBLE INTO THE NIGHT AHEAD OF FRONTAL ZONE PASSING INTO THE AREA. BY 12Z MON DRIER AIR FILTERS INTO THE NW ALLOWING COOLER LOW TEMPS AND A TRANSITION OF POPS TO FOCUS ON THE SE. LONG TERM.../MONDAY THROUGH FRIDAY/... WET PATTERN PERSISTS MONDAY THROUGH TUESDAY NIGHT. ACTIVE WESTERLY FLOW OVER THE RIDGE IN THE SOUTHEAST WILL USHER IN CONVECTIVE REMNANTS FROM THE PLAINS OVER THE GREAT LAKES. WITH THE LATEST MODEL RUNS ALL SUGGESTING THAT THE SYSTEMS WILL BE WELL NORTH OF THE REGION... INSTABILITY AND ABUNDANT MOISTURE IN THE REGION WILL FAVOR CONTINUING TO CARRY POPS...AND LOOKS LIKE THE BEST CHANCE OF SIGNIFICANT RAINFALL WILL BE DURING THE TUESDAY/TUESDAY NIGHT TIMEFRAME. DIURNAL TEMPERATURE RANGES ALSO WILL BE AFFECTED...WITH 15 DEGREE DIURNAL SWINGS QUITE LIKELY...CONTINUED HOT AND MUGGY. WHILE THERE IS SOME DIFFERENCE IN THE CURRENT SUITE OF MODELS FROM THE PREVIOUS FEW RUNS...A BREAK IN THE PRECIPITATION AND HUMIDITY WILL BE FELT AROUND MID-WEEK IN THE WAKE OF THE TROF/SHORTWAVE MOVING INTO THE NORTHEAST. SURFACE HIGH WILL BUILD OVER THE GREAT LAKES DURING THE DAY WEDNESDAY AND PERSIST THROUGH THE END OF THE EXTENDED PERIOD. BY END OF THE WEEK...TEMPERATURES AND HUMIDITY SHOULD RISE...BUT EXPECT THAT PRECIPITATION WILL BE SUPPRESSED AS THE RIDGE BUILDS. ONLY MINOR MODIFICATIONS WERE MADE TO THE CURRENT FORECAST... SPECIFICALLY ADJUSTED HI/LO TEMPERATURES FOR THE TUE/WED PERIOD AND MINOR ADJUSTMENT TO POP/WX/QPF ON TUESDAY NIGHT/WEDNESDAY MORNING. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SHORT TERM...LUD LONG TERM...LEWIS AVIATION...WEISSER
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORTHERN INDIANA 848 AM EDT SAT JUN 12 2010 INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005- 015-016-024-025-131300- 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-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 848 AM EDT SAT JUN 12 2010 /748 AM CDT SAT JUN 12 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO... SOUTHWEST LOWER MICHIGAN AND NORTHERN INDIANA. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS TODAY AND TONIGHT. HEAVY RAINFALL IS THE PRIMARY THREAT...HOWEVER SOME STORMS COULD BECOME SEVERE WITH DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE FOR THUNDERSTORMS SUNDAY THROUGH TUESDAY. SEVERE STORMS ARE NOT ANTICIPATED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX LMZ043-046-131300- NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI- 848 AM EDT SAT JUN 12 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF SOUTHEASTERN LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. SOME THUNDERSTORMS MAY PRODUCE WIND GUSTS OVER 35 KNOTS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE OF THUNDERSTORMS SUNDAY THROUGH TUESDAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX JC
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
924 AM EDT SAT JUN 12 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0533 PM TORNADO 1 WNW LIMA 40.75N 84.13W
06/11/2010 ALLEN OH BROADCAST MEDIA
A WEAK AND SHORTLIVED EF0 TORNADO TOUCHED DOWN ON THE
NW SIDE OF LIMA NEAR THE INTERSECTION OF KENILWORTH AVE
AND RICE AVE. THE ONLY DAMAGE REPORTED WAS TO A
TRAMPOLINE.
&&
EVENT NUMBER IWX1000688
JCSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTHERN INDIANA 110 PM EDT SAT JUN 12 2010 INZ014-121745- MARSHALL IN- 110 PM EDT SAT JUN 12 2010 AT 110 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 14 MILES WEST OF BREMEN...OR 7 MILES NORTHWEST OF PLYMOUTH...MOVING EAST AT 20 MPH. WINDS GREATER THAN 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND BRIEF HEAVY DOWNPOURS ARE POSSIBLE WITH THIS STORM. LOCATIONS IN THE PATH OF THIS STORM INCLUDE... BREMEN... LA PAZ... LINKVILLE... LAKE OF THE WOODS... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. LAT...LON 4148 8608 4130 8608 4138 8646 4148 8646 TIME...MOT...LOC 1710Z 272DEG 16KT 4142 8639 JC
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
122 PM EDT SAT JUN 12 2010
INZ020-121815-
WHITE IN-
122 PM EDT SAT JUN 12 2010
AT 1219 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS EXTENDING FROM 7 MILES WEST OF MONON
TO WOLCOTT TO 16 MILES WEST OF WOLCOTT...MOVING EAST AT 20 MPH.
WINDS GREATER THAN 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND
VERY HEAVY DOWNPOURS CAN BE EXPECTED WITH THESE STORMS. VERY HEAVY
RAIN IN A SHORT DURATION IS POSSIBLE WITH THIS CLUSTER OF
THUNDERSTORMS...WHICH COULD LEAD TO PONDING ON ROADWAYS.
LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...
MONTICELLO...
MONON AND WOLCOTT...
BUFFALO...
SITKA AND REYNOLDS...
BELL CENTER...NORWAY AND INDIANA BEACH...
NORWAY...
GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES.
SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.
LAT...LON 4085 8710 4085 8700 4089 8699 4088 8659
4074 8658 4074 8674 4072 8677 4068 8676
4067 8677 4061 8677 4062 8710 4084 8711
TIME...MOT...LOC 1719Z 273DEG 19KT 4087 8698 4078 8712
4072 8731
JCThe Indianapolis radar (KIND), 111 km away, was scanning. The volume nearest the first event began at 18:06 UTC.
11 thunderstorm wind. Local standard time, as filed.
Local television stations reported trees and tree limbs down with some minor street flooding.
Law enforcement officials reported trees down in North Judson and nearby San Pierre.
Law enforcement officials reported large trees down on the west side of Plymouth.
An off duty NWS employee reported trees and power lines down at the Lake Tippecanoe Country Club.
An off duty NWS employee reported a two foot diameter maple tree was down across County Road 650 North. Power lines were also down in the area.
An off duty NWS employee reported a ten inch diameter branch down southeast of Warsaw.
A trained spotter reported measured sustained winds of 45 mph with gusts as high as 60 mph.
Amateur radio operators recorded a 60 mph wind gust with the storm.
Emergency management officials reported a ten inch diameter tree was blown down by the winds, with signs of some weakening prior to the storm from animals.
A trained spotter reported a eight inch diameter tree down at the intersection of County Road 900 North and US 24.
Law enforcement officials reported trees were down across roads in the area, as well as some blown transformers.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2010Every state in 2010This day in weather historyWarnings in Indiana, 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: 245546, 245547, 245548, 245550, 245552, 245556, 245561, 245563, 245558, 245559, 245560.