Indiana, 2010

Tornadoes and Damaging Winds in Indiana, June 23, 2010

June 23, 2010 · NWS IWX · 49 events in 17 counties and zones

A line of severe storms advanced from Illinois and intensified further as it interacted with strong instability and shear. The line took on a line echo wave pattern (LEWP), resulting in an abundance of wind damage reports, including a large scale microburst in La Porte county.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
2
Property damage
$2.1 million
Crop damage
$50,000
Events
49

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.

What happened

The episode as NWS IWX wrote it up.

A line of severe storms advanced from Illinois and intensified further as it interacted with strong instability and shear. The line took on a line echo wave pattern (LEWP), resulting in an abundance of wind damage reports, including a large scale microburst in La Porte county. In addition, several small, but strong areas of rotation developed on the north side of the LEWP, resulting in several tornadoes across Elkhart and Kosciusko counties.

What forecasters said that day

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 23, 6:54 PM EST, 47 minutes earlier.

Area forecast discussion, Jun 23, 6:54 PM EST, 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
754 PM EDT WED JUN 23 2010

.AVIATION /00 UTC TAFS/...
WELL CONGEALED SQUALL LINE APPROACHING GRTR INSTABILITY AHEAD OF
LINE WITH MAXIMIZED SFC HEATING. SFC DPS IN THE MID 70S POOLED AHEAD
OF CONVECTIVE LINE BRINGING 3.5-4.5 KJ/KG ACRS NWRN/NRN COINCIDENT
WITH 40-50KTS DEEP LYR SHEAR IN 0-6KM LYR...ALL PORTENDS TO
STRONG/SEVERE SOLID LINE TRAVERSING NRN IN THIS EVE...WITH XTREME
DAMAGING WIND GUSTS PSBL. PROGGED SPECIFIC 1 HR WINDOW OF GRTST CHC
FOR SEVERE WX/WIND GUSTS THIS EVENING WITH HI REFLECTIVITY/RAFL
RATES TO BRING VSBYS TO IFR IN HEART OF STORMS.

&&

.UPDATE...
OUTFLW BUBBLE FM LATE AM/EARLY PM CONVN RECOVERY RAPIDLY THIS AFTN
AND NO DOUBT AIDED BY APCH OF STG SW TROUGH EJECTING EWD THROUGH MN
ATTM AND ASSOCD HGT FALLS. FLW THROUGH THE BNDRY LYR RESPONDING IN
KIND W/LLJ RAMPING FM WRN IN WWD INTO ERN IA AND REFLECTED IN
TIGHTENING SFC GRADIENT AND GUSTY SFC WINDS.

AFTN FCST ON TRACK ALTHOUGH SLIGHT MODIFICATION MADE TO POPS/WX TO
REFLECT NEWD RTNG OUTFLW BNDRY THIS EVENING. OTHERWISE UPSTREAM
CONVN GOING UPSCALE QUICKLY W/EXPANDING WIND DAMAGE WITHIN
CONGEALING SQUALL LINE OVR FAR WRN IL. STILL SOME UNCERTAINTY W/EWD
EXTENT ON RECOVERY INVOF OF OUTFLW INDUCED MESOHIGH BUT CERTAINLY A
SIG SVR RISK GROWING FOR NW IN/FAR SW MI FOR THIS EVENING.

UPDATES FORTHCOMING.

&&

.SHORT TERM...
TONIGHT THROUGH THURSDAY NIGHT.

...MAIN SEVERE EVENT STILL APPEARS TO BE LOOMING THIS EVENING...

MCS FROM EARLIER TODAY HAS SENT A OUTFLOW BOUNDARY PRETTY MUCH
THROUGH OUR CWA ATTM. HEATING AND LACK OF CLOUD COVER AS WELL AS THE
BOUNDARY ALLOWED FOR A FEW STORMS TO BECOME SEVERE ACROSS EASTERN
INDIANA INTO NW OHIO. THE THREAT WAS NOW EXITING THE AREA AND THE
WATCH WAS ALLOWED TO EXPIRE.

ATTENTION TURNS TO THE WEST WHERE CLEARING TREND HAS BEEN ONGOING
FOR A FEW HOURS NOW WITH A RAPID RECOVERY IN CONDITIONS. INSTABILITY
MIN IN THE WAKE OF THE SYSTEM ACROSS NE ILLINOIS/NW INDIANA APPEARS
TO BE READY TO BE WIPED OUT AS EXTREME INSTABILITY FOCUSES ACROSS SE
IOWA AND WESTERN ILLINOIS. SBCAPES IN AOA 4500 J/KG...LI'S TO -10
AND SFC THETA E TO 370 K ALL SETTING THE STAGE FOR WHAT MAY BE
EXPLOSIVE DEVELOPMENT IN THESE AREAS. IMPROVING THETA E GRADIENT HAS
BEEN OBSERVED IN THE PAST COUPLE OF HOURS ACROSS ILLINOIS AS TEMPS
SOAR TO WELL INTO THE 80S. AGITATED CU FIELD ACROSS CNTRL ILLINOIS
DRIFTING NORTH WITH THIS LIKELY BEING THE EFFECTIVE BOUNDARY THAT
WILL ALLOW CONVECTION TO TRACK EAST TOWARDS THE CWA. SPC HAS JUST
ISSUED A TOR WATCH FROM IOWA INTO NW INDIANA...NOT INCLUDING OUR
AREA WITH SOME DEVELOPMENT NOTED IN SE IOWA. WILL CONTINUE WITH
LIKELY POPS AND MENTION OF SEVERE WITH WINDS...HAIL AND HVY RAIN.
ALTHOUGH OVERALL CONCERN ON WIDESPREAD HEAVY RAIN MAY BE WINDING
DOWN...CANNOT JUSTIFY DROPPING THE FLASH FLOOD WATCH GIVEN EXPECTED
CONVECTION AND POTENTIAL FOR BACKBUILDING. HAVE TRIED TO ADJUST
TIMING SOMEWHAT WITH THINGS WINDING DOWN AFTER 6Z.

BEYOND TONIGHT NO CHANGES WERE MADE DUE TO ACTIVE WEATHER FIRST PART
OF THE DAY. LOOKS TO BE A TRANQUIL PERIOD THROUGH THURSDAY NIGHT
WITH SOMEWHAT LESS HUMID CONDITIONS.

&&

.LONG TERM.../FRIDAY THROUGH TUESDAY/...

SIMILAR LATE PERIOD CHALLENGES IN THE EXTENDED AS EARLY PORTION
REMAINS ON TRACK AND CONFIDENCE IN A PATTERN CHANGE FOR NEXT WEEK
GROWS...HOWEVER LOCAL IMPACTS REMAIN LOWER CONFIDENCE AS THE MED
RANGE MODELS CONTINUE TO WAVER WIDELY ON POSITION AND AMPLITUDE OF
DEVELOPING RIDGE SOMEWHERE OVER THE CENTRAL CONUS.

DRIER AIRMASS INITIALLY OVER THE CWA ON FRIDAY WITH COMFORTABLE
DEWPOINTS NEAR 60 WILL RAPIDLY BE REPLACED IN SW FLOW WITH WARM
MOIST CONDITIONS ON SATURDAY.  H85 TEMPS CONTINUE TO BE ADVERTISED
22-23C PUSHING HIGHS NEAR 90 WITH DEWPOINTS INCREASING THROUGH THE
DAY TO NEAR 70 BY EVENING. SIMILAR MUGGINESS ON SUNDAY AS SHRTWV
MOVING ALONG NORTHERN PERIPHERY OF SOUTHERN RIDE MOVES THROUGH THE
REGION BRINGING A COLD FRONT THROUGH SUNDAY NIGHT.  NO MAJOR CHANGES
THROUGH THIS PERIOD AS RUN TO RUN AND CROSS MODEL CONSISTENCY IS IN
GENERAL AGREEMENT WITH THE GRIDS.  MAY HAVE TO CONSIDER POPS MONDAY
MORNING IF THE SLOWER GUIDANCE PERSISTS BUT NOT WILLING TO ADD THIS
GRANULAR DETAIL AT THIS TIME.

PATTERN CHANGE THEN GETS UNDERWAY AS ANOTHER SHRTWV ROTATING AROUND
VORTEX OFF CANADIAN MARITIMES COMBINES WITH INCREASED RIDGING OVER
THE PLAINS TO BRING NORTHERLY FLOW ALOFT AND A PLEASANT CP AIRMASS.
THOUGH MODELS ARE VERY UNSURE ABOUT POSITION AND AMP OF RIDGING THIS
HAS BEEN A CONSISTENT SIGNAL TO ONE EXTENT OR ANOTHER...AND
BARRING ANY FUTURE SHIFTS TO THE EAST AN EARLY/MID WEEK COOL DOWN IS
IN ORDER.  PICTURE BECOMES MUDDLED IN THE ECMWF AS A QUESTIONABLE
TROPICAL SYSTEM POLLUTES THE PICTURE.  GFS HAS COME AROUND WITH A
MUCH MORE REASONABLE NORTH ATLANTIC VORTEX AND LESS AMPLIFIED
RIDGING AND PROVIDES A REALISTIC OPTION.  CONSERVATIVELY COOLED DAYS
6-7 AS CLIMO SUGGESTS TEMPS IN THE LOW 80S WITH A LESS AGGRESSIVE NE
TROUGH.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR INZ003>009-012>018-
     020-022>027-032>034.

MI...FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR MIZ077>081.

OH...FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR OHZ001-002-004-005-
     015-016-024-025.

LM...SMALL CRAFT ADVISORY UNTIL 11 PM EDT THIS EVENING FOR
LMZ043-046.

&&

SHORT TERM...FISHER
LONG TERM...LUD
AVIATION...MURPHY
UPDATE...T
Hazardous weather outlook, Jun 23, 4:46 PM EST, 2 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTHERN INDIANA
546 PM EDT WED JUN 23 2010

INZ003>005-012>017-020-022>026-032>034-MIZ077-078-241000-
LA PORTE-ST. JOSEPH IN-ELKHART-STARKE-PULASKI-MARSHALL-FULTON IN-
KOSCIUSKO-WHITLEY-WHITE-CASS IN-MIAMI-WABASH-HUNTINGTON-WELLS-GRANT-
BLACKFORD-JAY-BERRIEN-CASS MI-
INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND...
MISHAWAKA...ELKHART...GOSHEN...KNOX...NORTH JUDSON...WINAMAC...
FRANCESVILLE...PLYMOUTH...BREMEN...ROCHESTER...WARSAW...
WINONA LAKE...COLUMBIA CITY...SOUTH WHITLEY...MONTICELLO...
BROOKSTON...LOGANSPORT...PERU...WABASH...NORTH MANCHESTER...
HUNTINGTON...BLUFFTON...OSSIAN...MARION...HARTFORD CITY...
MONTPELIER...PORTLAND...NILES...BENTON HARBOR...ST. JOSEPH...
BUCHANAN...DOWAGIAC...CASSOPOLIS
546 PM EDT WED JUN 23 2010 /446 PM CDT WED JUN 23 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN INDIANA
AND SOUTHWEST LOWER MICHIGAN.

.DAY ONE...TONIGHT

THUNDERSTORMS ARE LIKELY THIS EVENING WITH A GROWING POTENTIAL FOR
WIDESPREAD DAMAGING WINDS. IN ADDITION...ISOLATED SUPERCELLS MAY
DEVELOP AHEAD OF AN ORGANIZING LINE OF SEVERE THUNDERSTORMS OVER
WESTERN ILLINOIS EARLY THIS EVENING WITH A RISK OF LARGE HAIL AND
ISOLATED TORNADOES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS ARE POSSIBLE SUNDAY INTO SUNDAY NIGHT. WHILE MANY
UNCERTAINTY STILL EXISTS...THERE IS A SLIGHT RISK THAT SOME OF
THESE STORMS COULD BE STRONG TO SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED LATER THIS EVENING.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX

INZ006>009-018-027-MIZ079>081-OHZ001-002-004-005-015-016-024-025-
241000-
LAGRANGE-STEUBEN-NOBLE-DE KALB-ALLEN IN-ADAMS-ST. JOSEPH MI-BRANCH-
HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY-PAULDING-PUTNAM-VAN WERT-
ALLEN OH-
INCLUDING THE CITIES OF...LAGRANGE...TOPEKA...ANGOLA...
KENDALLVILLE...LIGONIER...AUBURN...GARRETT...FORT WAYNE...DECATUR...
BERNE...STURGIS...THREE RIVERS...COLDWATER...HILLSDALE...BRYAN...
MONTPELIER...WAUSEON...ARCHBOLD...DEFIANCE...NAPOLEON...PAULDING...
ANTWERP...OTTAWA...PANDORA...VAN WERT...DELPHOS...LIMA
546 PM EDT WED JUN 23 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO...
NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN.

.DAY ONE...TONIGHT

THUNDERSTORMS ARE LIKELY LATER THIS EVENING WITH A GROWING
POTENTIAL FOR WIDESPREAD DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS ARE POSSIBLE SUNDAY INTO SUNDAY NIGHT. WHILE MANY
UNCERTAINTY STILL EXISTS...THERE IS A SLIGHT RISK THAT SOME OF
THESE STORMS COULD BE STRONG TO SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED LATER THIS EVENING.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX

LMZ043-046-241000-
NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI-
546 PM EDT WED JUN 23 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF
SOUTHEASTERN LAKE MICHIGAN.

.DAY ONE...TONIGHT

THUNDERSTORMS ARE LIKELY THIS EVENING. WINDS GUSTS IN EXCESS OF 34
KNOTS ARE POSSIBLE AS WELL AS ISOLATED WATERSPOUTS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS ARE POSSIBLE SUNDAY INTO SUNDAY NIGHT. WHILE MANY
UNCERTAINTY STILL EXISTS...THERE IS A SLIGHT RISK THAT SOME OF
THESE STORMS COULD BE STRONG TO SEVERE.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX/?N=MARINE

In the hours before

Local storm report, Jun 23, 4:28 PM EST, 3 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
528 PM EDT WED JUN 23 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     TSTM WND DMG     3 SSE BENTON HARBOR     42.08N  86.42W
06/23/2010                   BERRIEN            MI   TRAINED SPOTTER

            TREES AND LIMBS DOWN NEAR EXIT 29 AND PIPESTONE. TIME
            ESTIMATED FROM RADAR.

&&

EVENT NUMBER IWX1000810

SAW
Special weather statement, Jun 23, 5:38 PM EST, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
638 PM EDT WED JUN 23 2010

INZ003>006-008-012>017-020-022>026-032>034-MIZ077>079-240400-
LA PORTE-ST. JOSEPH IN-ELKHART-LAGRANGE-NOBLE-STARKE-PULASKI-
MARSHALL-FULTON IN-KOSCIUSKO-WHITLEY-WHITE-CASS IN-MIAMI-WABASH-
HUNTINGTON-WELLS-GRANT-BLACKFORD-JAY-BERRIEN-CASS MI-
ST. JOSEPH MI-
INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND...
MISHAWAKA...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...KENDALLVILLE...
LIGONIER...ALBION...KNOX...NORTH JUDSON...BASS LAKE...WINAMAC...
FRANCESVILLE...MEDARYVILLE...PLYMOUTH...BREMEN...CULVER...
ROCHESTER...AKRON...WARSAW...WINONA LAKE...SYRACUSE...MENTONE...
COLUMBIA CITY...TRI-LAKES...SOUTH WHITLEY...MONTICELLO...
BROOKSTON...MONON...LOGANSPORT...ROYAL CENTER...PERU...
GRISSOM AFB...MEXICO...WABASH...NORTH MANCHESTER...HUNTINGTON...
ROANOKE...BLUFFTON...OSSIAN...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON
638 PM EDT WED JUN 23 2010 /538 PM CDT WED JUN 23 2010/

...LINE OF SEVERE THUNDERSTORMS TO SWEEP THROUGH NORTHWEST INDIANA
AND SOUTHWEST MICHIGAN THIS EVENING...

SUNNY...WARM AND HUMID CONDITIONS ARE IN PLACE ACROSS THE AREA
EARLY THIS EVENING BUT DO NOT BE DECEIVED...AS A FAST MOVING LINE
OF SEVERE THUNDERSTORMS WITH WIDESPREAD DAMAGING WINDS IS RACING
EASTWARD OUT OF WESTERN ILLINOIS.

CURRENT INDICATIONS PLACE THIS LINE INTO THE LAPORTE AREA AROUND
630 PM CDT...SOUTH BEND AREA TOWARD 8 PM EDT...GOSHEN AND ELKHART
830 PM...WARSAW AND ROCHESTER AROUND 9 PM EDT AND COLUMBIA CITY
TOWARD 930 PM EDT ASSUMING NO ACCELERATION. THIS LINE OF STORMS
WILL BE CAPABLE OF PRODUCING ISOLATED TORNADOES AND LARGE HAIL IN
ADDITION TO WIDESPREAD STRAIGHT LINE WINDS IN EXCESS OF 70 MPH.

THIS LINE OF STORMS HAS A HISTORY OF PRODUCING WIDESPREAD WIND
DAMAGE IN WESTERN ILLINOIS ALREADY AND WILL APPROACH THE AREA
VERY RAPIDLY LATE THIS EVENING. THOSE WITH OUTDOOR PLANS SHOULD
BE PREPARED TO SEEK SHELTER QUICKLY SHOULD THREATENING WEATHER
APPROACH.

INZ007-009-018-027-MIZ080-081-OHZ001-002-004-005-015-016-024-025-
240400-
STEUBEN-DE KALB-ALLEN IN-ADAMS-BRANCH-HILLSDALE-WILLIAMS-
FULTON OH-DEFIANCE-HENRY-PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...ANGOLA...FREMONT...AUBURN...GARRETT...
FORT WAYNE...NEW HAVEN...DECATUR...BERNE...COLDWATER...BRONSON...
HILLSDALE...LITCHFIELD...JONESVILLE...BRYAN...MONTPELIER...
WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...SHERWOOD...
HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...PAULDING...
ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...FORT JENNINGS...
VAN WERT...DELPHOS...OHIO CITY...LIMA...SPENCERVILLE...BLUFFTON
638 PM EDT WED JUN 23 2010

...LINE OF SEVERE THUNDERSTORMS TO SWEEP THROUGH NORTHEAST INDIANA
AND NORTHWEST OHIO LATER THIS EVENING...

SUNNY...WARM AND HUMID CONDITIONS ARE IN PLACE ACROSS THE AREA
EARLY THIS EVENING BUT DO NOT BE DECEIVED...AS A FAST MOVING LINE
OF SEVERE THUNDERSTORMS WITH WIDESPREAD DAMAGING WINDS IS RACING
EASTWARD OUT OF WESTERN ILLINOIS.

CURRENT INDICATIONS PLACE THIS LINE INTO THE ANGOLA AREA AROUND
930 PM CDT...FORT WAYNE AND MARION TOWARD 10 PM EDT...AND DEFIANCE
TOWARD 1030 PM EDT ASSUMING NO ACCELERATION. THIS LINE OF STORMS
WILL BE CAPABLE OF PRODUCING ISOLATED LARGE HAIL IN ADDITION TO
WIDESPREAD STRAIGHT LINE WINDS IN EXCESS OF 70 MPH.

THIS LINE OF STORMS HAS A HISTORY OF PRODUCING WIDESPREAD WIND
DAMAGE IN WESTERN ILLINOIS ALREADY AND WILL APPROACH THE AREA
VERY RAPIDLY LATE THIS EVENING. THOSE WITH OUTDOOR PLANS SHOULD
BE PREPARED TO SEEK SHELTER QUICKLY SHOULD THREATENING WEATHER
APPROACH.
Local storm report, Jun 23, 7:10 PM EST, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
810 PM EDT WED JUN 23 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0805 PM     MARINE TSTM WIND 2 NNW MICHIGAN CITY     41.74N  86.91W
06/23/2010  M64 MPH          LMZ046             IN   C-MAN STATION

            56 KNOT GUST AT THE GLERL SITE AT MICHIGAN CITY

&&

EVENT NUMBER IWX1000811

NG
Local storm report, Jun 23, 7:18 PM EST, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
818 PM EDT WED JUN 23 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0813 PM     TSTM WND GST     2 SW LA PORTE           41.59N  86.75W
06/23/2010  M71 MPH          LA PORTE           IN   TRAINED SPOTTER

            POWER OUT AND BRANCHES DOWN

&&

EVENT NUMBER IWX1000812

NG
Local storm report, Jun 23, 7:32 PM EST, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
832 PM EDT WED JUN 23 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0816 PM     TSTM WND GST     4 N LAPORTE             41.67N  86.72W
06/23/2010  E90 MPH          LA PORTE           IN   NWS EMPLOYEE

            EXPERIENCED SUSTAINED 60 MPH WINDS FOR 10
            MINUTES...WITH GUSTS UP TO 90 MPH

&&

EVENT NUMBER IWX1000813

NG
Local storm report, Jun 23, 7:34 PM EST, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
834 PM EDT WED JUN 23 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0829 PM     TSTM WND GST     2 SW LAPORTE            41.59N  86.75W
06/23/2010  M59 MPH          LA PORTE           IN   TRAINED SPOTTER

            59 MPH GUSTS MEASURED

&&

EVENT NUMBER IWX1000814

NG

The radar

The Northern Indiana radar (KIWX), 57 km away, was scanning. The volume nearest the first event began at 00:41 UTC.

Open the radar archive at this moment

Event by event

43 thunderstorm wind, 6 tornado. Local standard time, as filed.

Thunderstorm Wind, St. Joseph

When
June 23, 7:41 PM EST to 7:42 PM EST
Where
St. Joseph County, South Bend
Measured
59 kt (68 mph) measured gust
Reported by
Trained Spotter
Coordinates
41.670, -86.250

Thunderstorm Wind, St. Joseph

When
June 23, 7:46 PM EST to 7:47 PM EST
Where
St. Joseph County, South Bend
Measured
61 kt (70 mph) estimated gust
Reported by
Amateur Radio
Coordinates
41.670, -86.250

Amateur radio operator reports estimated 60-70 mph gusts.

Thunderstorm Wind, St. Joseph

When
June 23, 7:46 PM EST to 7:47 PM EST
Where
St. Joseph County, 2 mi NW of Woodland
Measured
50 kt (58 mph) estimated gust
Reported by
Broadcast Media
Coordinates
41.590, -86.207

Tree limbs down on road. Two cars swerved to avoid limbs and ended up in a ditch.

Thunderstorm Wind, St. Joseph

When
June 23, 7:48 PM EST to 7:49 PM EST
Where
St. Joseph County, 4 mi NW of South Bend
Measured
52 kt (60 mph) measured gust
Reported by
ASOS
Coordinates
41.711, -86.305

South Bend ASOS recorded a 52 knot gust.

Thunderstorm Wind, St. Joseph

When
June 23, 7:49 PM EST to 7:50 PM EST
Where
St. Joseph County, South Bend
Measured
60 kt (69 mph) estimated gust
Injuries
2 direct, 0 indirect
Reported by
Broadcast Media
Coordinates
41.670, -86.250

A tree fell down on house at 600 block of 28th St and 2 people were injured.

Thunderstorm Wind, St. Joseph

When
June 23, 7:50 PM EST to 7:51 PM EST
Where
St. Joseph County, South Bend
Measured
56 kt (64 mph) estimated gust
Reported by
Trained Spotter
Coordinates
41.670, -86.250

Spotter estimated 65 mph gusts.

Thunderstorm Wind, St. Joseph

When
June 23, 7:50 PM EST to 7:51 PM EST
Where
St. Joseph County, South Bend
Measured
70 kt (81 mph) measured gust
Reported by
Trained Spotter
Coordinates
41.670, -86.250

Thunderstorm Wind, St. Joseph

When
June 23, 7:52 PM EST to 7:53 PM EST
Where
St. Joseph County, 2 mi SE of Mishawaka
Measured
73 kt (84 mph) measured gust
Reported by
Trained Spotter
Coordinates
41.650, -86.143

Trained spotter measured 84 mph gusts. Large tree branches were downed and lawn furniture was blown around.

Thunderstorm Wind, St. Joseph

When
June 23, 7:55 PM EST to 7:56 PM EST
Where
St. Joseph County, South Bend
Measured
50 kt (58 mph) estimated gust
Reported by
Amateur Radio
Coordinates
41.670, -86.250

Large tree branches downed.

Thunderstorm Wind, St. Joseph

When
June 23, 7:55 PM EST to 7:56 PM EST
Where
St. Joseph County, 2 mi E of Walkerton
Measured
55 kt (63 mph) estimated gust
Reported by
Broadcast Media
Coordinates
41.470, -86.441

Media reports a large tree down 2 miles east of Walkerton.

Tornado, Elkhart

When
June 23, 7:59 PM EST to 8:13 PM EST
Where
Elkhart County, 2.27 mi NW of Wakarusa to 1.34 mi WSW of (Gsh)goshen Arpt
Rating
EF1
Path length
11.85 mi
Path width
50 yd
Property damage
$300,000
Crop damage
$25,000
Reported by
NWS Storm Survey
Coordinates
41.554, -86.050

A survey of damage indicated a circulation touched down northwest of Wakarusa and worked east southeast, passing north of the town. The circulation skipped along its nearly 12 mile track, producing varying degrees of tree damage, including tree topping, uproots and snapping large limbs. The greatest damage occurred at the Ultimaster plant on State Route 19, where a portion of a second story wall and roof was ripped away. Tree and corn damage continued as the circulation approached New Paris, where it finally dissipated. Despite its track, the maximum width was only around 50 yards with maximum estimated winds of around 100 mph. Damage is estimated at $300,000.

Thunderstorm Wind, Elkhart

When
June 23, 8:09 PM EST to 8:10 PM EST
Where
Elkhart County, Millersburg
Measured
55 kt (63 mph) estimated gust
Reported by
Amateur Radio
Coordinates
41.520, -85.700

Several 10 inch diameter trees were snapped and blocking the road.

Thunderstorm Wind, Elkhart

When
June 23, 8:09 PM EST to 8:10 PM EST
Where
Elkhart County, Elkhart
Measured
52 kt (60 mph) estimated gust
Reported by
Amateur Radio
Coordinates
41.680, -85.970

Amateur radio operator estimates wind gusts of up to 60 mph.

Tornado, Elkhart

When
June 23, 8:09 PM EST to 8:10 PM EST
Where
Elkhart County, 0.6 mi S of Goshen to 0.98 mi ESE of Goshen
Rating
EF1
Path length
0.98 mi
Path width
50 yd
Property damage
$500,000
Reported by
NWS Storm Survey
Coordinates
41.571, -85.831

A survey of damage in Goshen indicated a circulation touched down near the Parkside Elementary School, causing varying degrees of damage to trees at the school and to the east northeast as it moved through the southern parts of town. The circulation passed over the Aggregate Industries storage facilities, ripping the roof and portions of the metal shell away (DI:WHB; DOD:4). Several trucks in the building suffered damage as the roof struck them while being picked up. The tornado quickly dissipated after striking the facility. Debris from the building was found over a half mile away at the Elkhart County Fairgrounds. Damage for the building and contents is estimated at $500,000.

Thunderstorm Wind, Elkhart

When
June 23, 8:11 PM EST to 8:12 PM EST
Where
Elkhart County, 1 mi N of Elkhart
Measured
61 kt (70 mph) measured gust
Reported by
Trained Spotter
Coordinates
41.694, -85.970

Thunderstorm Wind, Fulton

When
June 23, 8:11 PM EST to 8:12 PM EST
Where
Fulton County, Rochester
Measured
52 kt (60 mph) measured gust
Reported by
Amateur Radio
Coordinates
41.070, -86.220

Thunderstorm Wind, La Porte

When
June 23, 7:12 PM CST to 7:30 PM CST
Where
La Porte County, Pine Lake to Rolling Prairie
Measured
87 kt (100 mph) estimated gust
Property damage
$750,000
Reported by
NWS Storm Survey
Coordinates
41.630, -86.730

A survey of rather extensive damage was performed across the county. An intense microburst with a path of 2 to 3 miles and estimated 100 mph winds was surveyed from Pine Lake northeast through Rolling Prairie. The most concentrated damage occurred at the start of the event, where enumerable trees were uprooted and snapped with roof damage to numerous homes. A lack of overall structure damage, outside of falling trees, suggested that the high winds remained at tree top level, roughly 30 to 50 feet. No specific damage value was available, but given the magnitude of the damage, an estimate of $750,000 will be assigned to the event.

Thunderstorm Wind, La Porte

When
June 23, 7:13 PM CST to 7:14 PM CST
Where
La Porte County, 2 mi SW of La Porte
Measured
62 kt (71 mph) measured gust
Reported by
Trained Spotter
Coordinates
41.580, -86.747

Thunderstorm Wind, La Porte

When
June 23, 7:13 PM CST to 7:14 PM CST
Where
La Porte County, 2 mi E of Michiana Shrs
Measured
55 kt (63 mph) estimated gust
Reported by
Law Enforcement
Coordinates
41.750, -86.781

Law enforcement reports a semi-trailer blown over blocking part of Interstate 94.

Tornado, Kosciusko

When
June 23, 8:14 PM EST to 8:19 PM EST
Where
Kosciusko County, 1.7 mi SSW of Monoquet to 1.86 mi E of Warsaw
Rating
EF1
Path length
4.79 mi
Path width
150 yd
Property damage
$300,000
Reported by
NWS Storm Survey
Coordinates
41.257, -85.882

A storm survey by NWS personnel indicated a weak circulation embedded in a initially stronger microburst south of US-30. Lofting of debris from a destroyed pole barn was evident in the area suggesting the tornado touched down near a residence south of Fox Farm Road, near North 200 West. The circulation continued to intensify as it tracked southeast into the Center Lake area. Numerous trees were damaged or uprooted along the track with a manufactured home being shifted off its blocks. As the tornado passed over State Route 15, it impacted the Warsaw Foundry, causing the southwest portion of the roof of a building to be torn off (DI: MBS, DOD: 3). The circulation continued across Pike Lake, causing damage to several homes and apartments as well as uprooting trees around the lake and an adjacent cemetery. As it approached U.S. 30, the circulation crossed a large residential area just south of the Kosciusko Community Hospital, uprooting several trees. One large tree fell into the center of a home on Parker Street, destroying it. The circulation crossed US 30 and began to weaken with scattered tree damage. The circulation finally dissipated along Old US 30 east of South 250 East. Maximum winds were estimated around 100 mph. Damage is estimated at $300,000.

Tornado, Elkhart

When
June 23, 8:15 PM EST to 8:17 PM EST
Where
Elkhart County, 0.68 mi ENE of Benton to 0.96 mi SSE of Millersburg
Rating
EF1
Path length
3.45 mi
Path width
100 yd
Property damage
$50,000
Reported by
NWS Storm Survey
Coordinates
41.524, -85.758

An off duty NWS employee witnessed a circulation touch down in an open field on West Lincoln Street, west of County Road 33 and move east southeast. The tornado's main structural impact occurred to a barn on the 15000 block of County Road 42. The owner of the barn witnessed the roof being picked up and carried into a nearby neighbor's yard (DI: SBO DOD: 6). The circulation then proceeded across the Timber Ridge Golf Course and began to turn more southeastward, causing extensive damage to over 200 trees on the course and then striking a large grove of 40 year old pine trees at a residence in the 12000 block of County Road 44. The final signs of the circulation were then found over an open field northwest of County Road 46 and State Route 13. Maximum winds are estimated at 100 mph.

Thunderstorm Wind, La Porte

When
June 23, 7:16 PM CST to 7:17 PM CST
Where
La Porte County, 4 mi N of La Porte
Measured
78 kt (90 mph) estimated gust
Reported by
NWS Employee
Coordinates
41.658, -86.720

Off-duty NWS employee experienced sustained 60 mph winds for 10 minutes with gusts up to 90 mph.

Tornado, Elkhart

When
June 23, 8:16 PM EST to 8:17 PM EST
Where
Elkhart County, 2.55 mi SW of Middlebury to 2.12 mi SSW of Middlebury
Rating
EF0
Path length
0.53 mi
Path width
25 yd
Property damage
$10,000
Reported by
Emergency Manager
Coordinates
41.652, -85.732

Emergency management officials relayed that an Amish family observed a tornado in an open field adjacent to their farm race eastward, picking up the roof of a barn (DI: SBO DOD: 5) and carrying it away from the property before dropping it and dissipating. One of the doors facing the tornado may have been open, aiding in the uplift of the roof. As a result, winds are estimated at around 80 mph with a maximum width of 25 yards. Damage is estimated at around $10,000.

Tornado, Elkhart

When
June 23, 8:17 PM EST to 8:19 PM EST
Where
Elkhart County, 4.47 mi S of Millersburg to 5.02 mi SSE of Millersburg
Rating
EF0
Path length
1.85 mi
Path width
50 yd
Property damage
$75,000
Crop damage
$25,000
Reported by
NWS Storm Survey
Coordinates
41.456, -85.713

A survey of damage within a larger area of straight line wind damage revealed a circulation touched down roughly a mile northwest of the intersection of US 33 and US 6. Several trees were damaged as the circulation began moving southeast. Patches of corn were also flattened as it moved towards and crossed US 6. A barn was struck by the winds, blowing off the front door and causing a shift in the whole building's walls. The circulation then flipped several sections of 2 different center pivots. Maximum winds are estimated around 85 mph with a maximum width of around 50 yards. Damage is estimated at around $100,000.

Thunderstorm Wind, Kosciusko

When
June 23, 8:21 PM EST to 8:22 PM EST
Where
Kosciusko County, 2 mi N of North Webster
Measured
56 kt (64 mph) estimated gust
Reported by
NWS Employee
Coordinates
41.349, -85.700

Estimated 65 mph gusts at NWS Office.

Thunderstorm Wind, Cass

When
June 23, 8:26 PM EST to 8:27 PM EST
Where
Cass County, Logansport
Measured
60 kt (69 mph) estimated gust
Property damage
$30,000
Reported by
Emergency Manager
Coordinates
40.750, -86.350

The roof of Tom Haynes Automotive was blown onto main feeder lines for Logansport municipal utilities which caused extensive power outages in Logansport. Numerous trees were downed across town that blocked roadways.

Thunderstorm Wind, La Porte

When
June 23, 7:29 PM CST to 7:30 PM CST
Where
La Porte County, 2 mi SW of La Porte
Measured
51 kt (59 mph) measured gust
Reported by
Trained Spotter
Coordinates
41.580, -86.747

Thunderstorm Wind, Elkhart

When
June 23, 8:30 PM EST to 8:31 PM EST
Where
Elkhart County, 5 mi NNE of Middlebury
Measured
55 kt (63 mph) estimated gust
Reported by
Trained Spotter
Coordinates
41.747, -85.663

Trained spotter reports a 3 foot diameter tree down across road 4 SSW of White Pigeon, MI in Elkhart County. A truck ran into the tree and sustained damage. Power lines were also down.

Thunderstorm Wind, Kosciusko

When
June 23, 8:33 PM EST to 8:34 PM EST
Where
Kosciusko County, Leesburg
Measured
55 kt (63 mph) estimated gust
Reported by
NWS Employee
Coordinates
41.330, -85.850

Large trees downed.

Thunderstorm Wind, Kosciusko

When
June 23, 8:35 PM EST to 8:36 PM EST
Where
Kosciusko County, Syracuse
Measured
70 kt (81 mph) estimated gust
Reported by
Amateur Radio
Coordinates
41.420, -85.750

A tree fell down into a house with estimated 80 mph wind gusts.

Thunderstorm Wind, Noble

When
June 23, 8:37 PM EST to 8:38 PM EST
Where
Noble County, Ligonier
Measured
50 kt (58 mph) estimated gust
Reported by
Emergency Manager
Coordinates
41.470, -85.580

Several tree limbs and power lines downed.

Thunderstorm Wind, Whitley

When
June 23, 8:38 PM EST to 8:39 PM EST
Where
Whitley County, 1 mi W of Columbia City
Measured
65 kt (75 mph) measured gust
Reported by
Trained Spotter
Coordinates
41.170, -85.499

Trained spotter measured 75 mph gust at Lincoln Hwy and Hwy 30.

Thunderstorm Wind, Lagrange

When
June 23, 8:40 PM EST to 8:41 PM EST
Where
Lagrange County, Lagrange
Measured
60 kt (69 mph) estimated gust
Property damage
$60,000
Reported by
Emergency Manager
Coordinates
41.650, -85.420

Numerous trees downed with some on cars. Power lines down across town and a barn was destroyed.

Thunderstorm Wind, Wabash

When
June 23, 8:42 PM EST to 8:43 PM EST
Where
Wabash County, Urbana
Measured
55 kt (63 mph) estimated gust
Reported by
Emergency Manager
Coordinates
40.900, -85.800

Several trees and power lines down with some falling across roadways. Power lines down caused scattered power outages.

Thunderstorm Wind, Noble

When
June 23, 8:48 PM EST to 8:55 PM EST
Where
Noble County, Albion
Measured
55 kt (63 mph) estimated gust
Reported by
Emergency Manager
Coordinates
41.400, -85.420

Trees downed all over Albion. One tree fell down on top of a car and trapped an occupant inside.

Thunderstorm Wind, Miami

When
June 23, 8:48 PM EST to 8:49 PM EST
Where
Miami County, 1 mi S of Peru
Measured
55 kt (63 mph) estimated gust
Reported by
Emergency Manager
Coordinates
40.736, -86.070

Large tree down on State Road 19 south of Peru.

Thunderstorm Wind, Huntington

When
June 23, 8:56 PM EST to 8:57 PM EST
Where
Huntington County, Huntington
Measured
56 kt (64 mph) measured gust
Reported by
Emergency Manager
Coordinates
40.880, -85.480

Emergency manager measured a 65 mph gust and reported numerous trees and branches down countywide.

Thunderstorm Wind, Steuben

When
June 23, 8:58 PM EST to 8:59 PM EST
Where
Steuben County, 1 mi W of Pleasant Lake
Measured
50 kt (58 mph) estimated gust
Reported by
Amateur Radio
Coordinates
41.570, -85.039

Large tree and 6 inch branches reported down.

Thunderstorm Wind, Huntington

When
June 23, 9:01 PM EST to 9:02 PM EST
Where
Huntington County, Huntington
Measured
60 kt (69 mph) measured gust
Property damage
$40,000
Reported by
Law Enforcement
Coordinates
40.880, -85.480

The roof of a business at 239 Howenstein was partially blown off. Widespread trees down and power outages across town.

Thunderstorm Wind, Steuben

When
June 23, 9:06 PM EST to 9:07 PM EST
Where
Steuben County, 2 mi N of Pleasant Lake
Measured
55 kt (63 mph) estimated gust
Reported by
Law Enforcement
Coordinates
41.599, -85.020

Law enforcement reported US 27 closed due to a large tree down between Pleasant Lake and Angola. There were widespread trees downed and power outages across the county.

Thunderstorm Wind, Allen

When
June 23, 9:11 PM EST to 9:12 PM EST
Where
Allen County, 2 mi NE of Ft Wayne
Measured
63 kt (72 mph) measured gust
Reported by
Amateur Radio
Coordinates
41.090, -85.103

Amateur radio operator measured a 73 mph gust near Stellhorn Road.

Thunderstorm Wind, De Kalb

When
June 23, 9:11 PM EST to 9:12 PM EST
Where
De Kalb County, Corunna
Measured
55 kt (63 mph) estimated gust
Reported by
Law Enforcement
Coordinates
41.430, -85.150

Multiple trees and power lines were downed across town.

Thunderstorm Wind, Grant

When
June 23, 9:12 PM EST to 9:13 PM EST
Where
Grant County, Marion
Measured
55 kt (63 mph) estimated gust
Reported by
Trained Spotter
Coordinates
40.550, -85.580

Widespread power outages with estimated gusts to 60 mph.

Thunderstorm Wind, Allen

When
June 23, 9:15 PM EST to 9:16 PM EST
Where
Allen County, New Haven
Measured
54 kt (62 mph) measured gust
Reported by
Amateur Radio
Coordinates
41.070, -85.020

Thunderstorm Wind, Grant

When
June 23, 9:20 PM EST to 9:21 PM EST
Where
Grant County, Sweetsers
Measured
55 kt (63 mph) estimated gust
Reported by
Trained Spotter
Coordinates
40.570, -85.770

Multiple trees downed.

Thunderstorm Wind, Allen

When
June 23, 9:22 PM EST to 9:23 PM EST
Where
Allen County, Ft Wayne
Measured
60 kt (69 mph) estimated gust
Reported by
Law Enforcement
Coordinates
41.070, -85.130

A semi was overturned on northbound I-69 at mile marker 19.

Thunderstorm Wind, Allen

When
June 23, 9:25 PM EST to 9:28 PM EST
Where
Allen County, Monroeville
Measured
60 kt (69 mph) estimated gust
Reported by
Trained Spotter
Coordinates
40.970, -84.870

Trained spotter reports numerous trees and branches down in Monroeville with estimated 60-70 mph gusts.

Thunderstorm Wind, Wells

When
June 23, 9:30 PM EST to 9:31 PM EST
Where
Wells County, Bluffton
Measured
55 kt (63 mph) estimated gust
Reported by
Trained Spotter
Coordinates
40.730, -85.170

Widespread trees down and power outages across town.

Thunderstorm Wind, Wells

When
June 23, 9:40 PM EST to 9:41 PM EST
Where
Wells County, 4 mi NW of Bluffton
Measured
55 kt (63 mph) estimated gust
Reported by
Law Enforcement
Coordinates
40.771, -85.224

Tree down at intersection of 400 N and 100 E.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Indiana in 2010Every state in 2010This day in weather historyThe tornado archive for Indiana, 2010Warnings in Indiana, June 2010

Sources

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: 235371, 235372, 235373, 235374, 235376, 235377, 235378, 235379, 235380, 235382, 242609, 235383, 235384, 242614, 235385, 235386, 235364, 235366, 235368, 242335, 242621, 235369, 244564, 242627, 235388, 235390, 235370, 235397, 235398, 235399, 235400, 235401, 235402, 235403, 235404, 235405, 235406, 235408, 235407, 235409, and more.