A frontal boundary worked north into northern Indiana during the afternoon. A moderately unstable atmosphere was located south of the front with favorable freezing levels and shear.
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.
A frontal boundary worked north into northern Indiana during the afternoon. A moderately unstable atmosphere was located south of the front with favorable freezing levels and shear. An upper level system moved through the area interacting with this boundary, providing the forcing for thunderstorm development. Some of these became severe with hail, wind damage and some reports of flooding.
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 10, 6:31 AM EST, 36 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 731 AM EDT FRI JUN 10 2011 .AVIATION... ELEVATED STORMS WILL AFFECT TERMINALS OVER THE NEXT FEW HOURS IN ASSOCIATION WITH LOW LEVEL WARM FRONT LIFTING TO THE NORTH. FURTHER BACK TO THE WEST...MINI MCS HAS FORMED ACROSS NORTH CENTRAL ILLINOIS WHICH ALSO MAY CLIP FAR NORTHERN INDIANA AND INTO SOUTHERN LOWER MICHIGAN. HAVE HELD THUNDER MENTION A BIT LONGER AT KSBN TO ACCOUNT FOR POSSIBILITY OF SOUTHERN FRINGE OF THIS MCS CLIPPING KSBN LATER THIS MORNING. OTHERWISE...CONDITIONS SHOULD DESTABILIZE THIS AFTERNOON IN ASSOCIATION WITH THE WARM FRONT. MAIN QUESTION WILL BE FORCING MECHANISM THIS AFTERNOON AS WEAK MID LEVEL IMPULSE SHOULD BE TRACKING EAST OF THE AREA EARLY THIS AFTERNOON. HAVE CONFINED PRECIP MENTION TO VCSH WITH CB CLOUD GROUP AT THIS TIME TO INDICATE THE UNCERTAINTY. BETTER CHANCE OF SHOWERS AND THUNDERSTORMS TONIGHT WITH APPROACH OF THE COLD FRONT AND BETTER UPPER LEVEL SUPPORT WITH A STRONGER UPPER LEVEL DISTURBANCE APPROACHING. IN TERMS OF WINDS...HAVE TRENDED TOWARD RUC/LOCAL WRF WITH SLIGHTLY MORE SUPPRESSED SFC REFLECTION ALLOWING FOR NORTHWEST WINDS TO AFFECT KSBN LATER THIS AFTERNOON WITH WINDS VEER TO SOUTH SOUTHWEST AT KFWA TONIGHT AHEAD OF THE FRONT. TREND BACK TO MVFR CONDITIONS LIKELY TOWARD END OF THE PERIOD AT KSBN WITH LOW CLOUDS LIKELY DEVELOP DUE TO FRONTAL INVERSION DEVELOPING. && .PREV DISCUSSION... /ISSUED 427 AM EDT FRI JUN 10 2011/ SHORT TERM...TODAY THROUGH SATURDAY NIGHT SCATTERED SHOWERS/STORMS HAVE DEVELOPED OVER THE LAST HOUR OR SO NEAR AND SOUTH OF THE HIGHWAY 30 CORRIDOR (AS OF 08Z). THIS ACTIVITY IS TIED TO A LOW LEVEL THETA-E RIDGE/WARM FRONT THAT IS ADVANCING NEWD IN RESPONSE TO A LEAD LOW AMPLITUDE MID LVL IMPULSE LIFTING TOWARDS THE UPPER MIDWEST. EXPECT THIS ACTIVITY TO REMAIN SCATTERED AND CONTINUE TO LIFT NWD INTO THE REST OF THE FA THIS MORNING. ALSO OF INTEREST IS A MORE ORGANIZED COMPLEX OF CONVECTION ACROSS NW IL AND EASTERN IA...THAT IS MORE OR LESS BEING FORCED BY A 925-850 MB FRONT WITH ADDED MOISTURE/MASS CONVERGENCE FROM A 40-45 KNOT LLJ. THIS FORCING IS PROGGED TO SHIFT ENE INTO SRN WI THIS MORNING WHICH WOULD HINT AT MORE WIDESPREAD HVY SHOWER/STORM ACTIVITY ONLY CLIPPING OUR NORTHWEST AREAS. HOWEVER...RADAR/SATELLITE TRENDS SHOW A MORE EWD PROPAGATION CLOSER TO THE W TO E ORIENTED INSTABILITY GRADIENT. EVEN WITH THE LLJ VEERING AND WEAKENING THIS MORNING WILL RAISE POPS TO LIKELY IN THE NW AND CONTINUE WITH CHANCE/SCT POPS IN THE SE AS THE WARM FRONT WORKS THOUGH. THE MAIN CONCERN THIS MORNING WILL BE HVY RAIN AND LOCALIZED FLOODING GIVEN POSSIBLE TRAINING AND PWATS NEAR 1.6 INCHES WITHIN THE THETA-E RIDGE. CONTINUED WITH CHC POPS THIS AFTERNOON AS UNCERTAINTIES ABOUND GIVEN FRONTAL BOUNDARY/COMPOSITE OUTFLOW BEING AUGMENTED BY THIS MORNING/S CONVECTIVE PROCESSES. MID/UPPER 60S DEWPOINTS WILL ADVECT IN TODAY BEHIND THE WARM FRONT...ALONG WITH STEEPER MID LVL LAPSE RATES. THIS COMBINED WITH A LOW LVL FOCUS FROM ANY OUTFLOW BOUNDARY OR DEVELOPING LAKE FRONT MAY BE ENOUGH TO FOCUS CONVECTION THIS AFTERNOON IF SUFFICIENT BOUNDARY LAYER DESTABILIZATION IS REALIZED. MARGINAL MULTICELL CLUSTERS WOULD BE THE PRIMARY THREAT AS STRONGER MID LEVEL FLOW/SHEAR WILL LAG BEHIND THIS FRONT...WITH DAMAGING WINDS AND HAIL THE MAIN THREATS IF WE DO INDEED RECOVER FROM THIS MORNING/S ACTIVITY. OTHERWISE...LEFT HIGH TEMPS TODAY NEARLY UNCHANGED GIVEN HIGH BUST POTENTIAL WITH BOUNDARY/CONVECTION IN THE VICINITY. POTENT SHORTWAVE TROUGH NOW ACROSS THE NRN HIGH PLAINS WILL RACE EWD TOWARDS THE UPPER MIDWEST TONIGHT AND EVENTUALLY INTO THE NRN GREAT LAKES BY SATURDAY. MODEST HEIGHT FALLS WITH THIS FEATURE WILL FORCE A STRONGER COLD FRONT THROUGH THE AREA TONIGHT INTO SATURDAY MORNING...WITH MUCH COOLER/DRIER AIR FILTERING IN FROM NW TO SE ON SATURDAY. RAISED POPS TO LIKELY MOST AREAS TONIGHT GIVEN DEEP MOISTURE AND MORE IMPRESSIVE MID/UPPER LEVEL SUPPORT AS HEIGHT FALLS OVERSPREAD THE PRIMARY FRONTAL BOUNDARY. OTHERWISE...LITTLE CHANGES MADE TO SATURDAY AND SATURDAY NIGHT AS CHC POPS TAPER OFF FROM NW TO SE WITH FROPA. LONG TERM...SUNDAY THROUGH THURSDAY FAIRLY GOOD AGREEMENT NOTED AMONG LATEST MODEL GUIDANCE IN SFC MASS FIELDS AND UPPER LEVEL FEATURES THROUGH THIS PERIOD WHICH NECESSITATE ONLY MINIMAL TWEAKS TO PREVIOUS FORECAST. LATTER PART OF WEEKEND WILL FEATURE MID LEVEL RIDGING BUILDING INTO THE WESTERN GREAT LAKES REGION WITH INCREASING MID LEVEL SUBSIDENCE. BROAD SFC HIGH PRESSURE WILL SETTLE INTO THE REGION WITH AN ACCOMPANYING LOW LEVEL THERMAL TROUGH PROVIDING COOLER THAN NORMAL CONDITIONS FOR SUNDAY. RELATIVELY WEAK GRADIENT WITH THE SFC HIGH SHOULD LEAD TO LAKE BREEZE DEVELOPMENT SUNDAY...WITH TEMPERATURES POSSIBLY NOT GETTING OUT OF THE 60S FOR LAKESHORE AREAS. FOR THE REST OF THE AREA...HAVE GENERALLY UTILIZED MIXING DOWN NAM/GFS BLENDED 900 HPA TEMPS FOR A FIRST GUESS ON MAX TEMPS...WHICH GENERALLY YIELD HIGHS FROM UPPER 60S TO AROUND 70 FAR NORTH...TO THE LOWER TO MID 70S SOUTH. FOR MONDAY...SPLITTISH TYPE FLOW PATTERN ACROSS EASTERN PACIFIC WILL RESULT IN SHORT WAVES DAMPENING CENTRAL CONUS RIDGE TO SOME EXTENT ON MONDAY...BUT OVERALL MAINTENANCE OF MID/UPPER LEVEL RIDGING WILL RESULT IN LITTLE CHANGE TO SFC FEATURES...WITH SFC HIGH STILL DOMINATING WEATHER ACROSS THE AREA AND DRY LOW/MID LEVELS PERSISTING. MONDAY SHOULD BEGIN A TREND OF SLOWLY MODERATING TEMPERATURES WHICH WILL CONTINUE THROUGH THE LATTER PORTIONS OF THIS FORECAST PERIOD. MORE SIGNIFICANT EASTERN PACIFIC JET STREAK SHOULD PROGRESS THROUGH NORTHWEST CONUS ON TUESDAY EVENTUALLY ALLOWING FOR AMPLIFYING UPPER TROUGH ACROSS NORTHERN/CENTRAL PLAINS ON TUESDAY. WHILE MEDIUM RANGES ALL ARE LATCHING ONTO THIS GENERAL IDEA...SOME EXPECTED NOTABLE DIFFERENCES REMAIN WITH AMPLITUDE AND HOW FAR SOUTH TO DIG THE TROUGH. WHILE THE GFS REMAINS LESS AMPLIFIED...SEVERAL GEFS MEMBERS ARE SIDING MORE TOWARD THE GEM/ECMWF WITH A A STRONGER UPPER TROUGH AND BASED ON STRENGTH OF EASTERN PACIFIC JET...A MORE AMPLIFIED SOLUTION MAY BE THE WAY TO GO. IN ANY EVENT...THIS PATTERN SHOULD YIELD WARMER TEMPERATURES BY THE END OF THE PERIOD...ALONG WITH AN INCREASING THREAT OF THUNDERSTORMS TOWARD DAY 7 WHICH IS ALREADY REPRESENTED IN PREVIOUS FORECAST SO NO CHANGES TO CHANCE POPS FOR TSRA AT THIS TIME FOR WEDNESDAY/THURSDAY. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SHORT TERM...STEINWEDEL LONG TERM...MARSILI AVIATION...MARSILI
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORTHERN INDIANA 452 AM EDT FRI JUN 10 2011 INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005- 015-016-024-025-110900- 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 452 AM EDT FRI JUN 10 2011 /352 AM CDT FRI JUN 10 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO... NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS MORNING...WITH THE PRIMARY THREAT BEING HEAVY RAINFALL. THIS HEAVY RAINFALL COULD PRODUCE LOCALIZED FLOODING ALONG CREEKS...STREAMS...AND OTHER LOW LYING AREAS. THERE IS A CHANCE FOR SHOWERS AND THUNDERSTORMS THIS AFTERNOON INTO TONIGHT. THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS...WITH DAMAGING WINDS AND LARGE HAIL BEING THE MAIN THREATS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE FOR SHOWERS AND THUNDERSTORMS ON SATURDAY. SEVERE THUNDERSTORMS ARE NOT EXPECTED AT THIS TIME. THERE IS ALSO A CHANCE FOR SHOWERS AND THUNDERSTORMS ON WEDNESDAY AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY INTO TONIGHT. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX LMZ043-046-110900- NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI- 452 AM EDT FRI JUN 10 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF SOUTHEASTERN LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WILL BE POSSIBLE THROUGH TONIGHT. WINDS AND WAVES WILL BE LOCALLY HIGHER IN AND NEAR THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE FOR THUNDERSTORMS WEDNESDAY AND THURSDAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX/?N=MARINE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTHERN INDIANA 345 AM EDT FRI JUN 10 2011 INZ017-024-025-100815- HUNTINGTON IN-WABASH IN-WHITLEY IN- 345 AM EDT FRI JUN 10 2011 ...STRONG THUNDERSTORMS MOVING TOWARD NORTHWESTERN HUNTINGTON... NORTHEASTERN WABASH AND SOUTHWESTERN WHITLEY COUNTIES... AT 344 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR NORTHEASTERN WABASH COUNTY...OR 7 MILES EAST OF NORTH MANCHESTER...MOVING EAST AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING PENNY SIZED HAIL. LOCATIONS IN THE PATH OF THIS STORM INCLUDE... BRACKEN AND BIPPUS... LUTHER... LUTHER AND TUNKER... GOBLESVILLE... WASHINGTON CENTER... LAT...LON 4107 8549 4095 8544 4092 8572 4101 8573 TIME...MOT...LOC 0745Z 261DEG 17KT 4097 8565
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTHERN INDIANA 435 AM EDT FRI JUN 10 2011 INZ022-023-100900- CASS IN-MIAMI IN- 435 AM EDT FRI JUN 10 2011 ...STRONG THUNDERSTORMS MOVING TOWARD SOUTHEASTERN CASS AND SOUTHERN MIAMI COUNTIES IN NORTH CENTRAL INDIANA... AT 432 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR WALTON...OR NEAR GRISSOM AFB...MOVING NORTHEAST AT 20 MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING NICKEL SIZED HAIL AND BRIEF TORRENTIAL RAINS. LOCATIONS IN THE PATH OF THIS STORM INCLUDE... GRISSOM AFB... PERU... BUNKER HILL... ONWARD... NEW WAVERLY... NEAD... LAT...LON 4085 8608 4067 8596 4058 8623 4071 8632 TIME...MOT...LOC 0835Z 242DEG 19KT 4064 8619
The Northern Indiana radar (KIWX), 68 km away, was scanning. The volume nearest the first event began at 12:06 UTC.
2 flash flood, 2 hail, 1 thunderstorm wind. Local standard time, as filed.
Law enforcement officials reported water flowing over the road in several areas of the southern part of the county, including the intersection of County Road 900 South and 550 West.
Amateur radio operators reported water over the road in and around Roanoke, including near the intersection of Smith and Clark Streets as well as County Road 900 North.
Trees and power lines were blown down near the intersection of County Road 325 West and State Route 26.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2011Every state in 2011This day in weather historyWarnings in Indiana, 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: 322411, 322394, 322395, 322415, 322396.