A shallow quasi-stationary frontal boundary was located from Iowa and Nebraska into portions of northern Indiana. Steep mid-level lapse rates, extreme instability (CAPES in excess of 8000 j/kg per Lincoln, IL sounding and strong mid-level flow allowed for a favorable environment for a cluster of storms over northeastern Illinois to rapidly intensify as they moved into northern Indiana.
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 shallow quasi-stationary frontal boundary was located from Iowa and Nebraska into portions of northern Indiana. Steep mid-level lapse rates, extreme instability (CAPES in excess of 8000 j/kg per Lincoln, IL sounding and strong mid-level flow allowed for a favorable environment for a cluster of storms over northeastern Illinois to rapidly intensify as they moved into northern Indiana. As the line organized and cold pool became established, a upswing in wind speed was noted from Whitley county south and east through Allen county and into northwestern Ohio. Eighty to nearly 100 mph winds caused widespread damage.
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 29, 9:04 AM CST, 2 hours 16 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1104 AM EDT FRI JUN 29 2012
.UPDATE...
RAPID/SIG UPDATE THIS AM TO ASSESS INCRSG TSRA/SVR RISK SPCLY FAR
SWRN CWA THIS AFTN...TRANSLATING EWD ALONG/SOUTH ROUTE 24...AND
ALONG/SOUTH ROUTE 30 IN ERN CWA LATER THIS EVENING. RICH 0-0.5KM
THETA-E LAID ACRS ERN IA/N CNTL IL INTO CNTL IN/XTRM SRN CWA WITH
XTRM MLCAPE OBSERVED/RAP PROGGED IN 4-6KJ/KG COINCIDENT WITH SRN
PERIPHERY OF HIR 40-50KT 0-6KM DLS. PROGGED SHEAR TO
MAINTAIN/SLGHTLY INCRS INTO AFTN AS CONFLUENCE WITHIN ML/UL DRIVES
ISOHYETAL SPEED INCRS/LENGTHENING HODOS. SHEAR MAGNITUDE OF
INSTABILITY ALONG WITH 1200-1400 J/KG DCAPE ALONG/SOUTH OF FNTL
BNDRY LAID ENHANCED BY EXTREME DIFFERENTIAL HEATING WITH CNTL
IL/IN INSOLATION AT 15 UTC INTO LWR 90S/MID TO UPR 70S. PRIME MCS
ACRS NRN IL DRIVEN BY WAA SHOULD EITHER LATCH UPON INSTABILITY
AXIS WELL SOUTH AND/OR BEGIN LYSIS AS IT ENCOUNTERS HIR MLCIN ACRS
NRN IN. FURTHER AND LKLY MORE PROBABLE INITIATION BY ERLY AFTN
ACRS FAR SWRN CWA/KLAF REGN AS MESOVORT NOTED IN NORTHEAST OF KBMI
SFC VORTICITY/BREAK IN SCCAS/ACCAS LN...MOVG EWD AT 40 KTS. OPTED
FOR COVERAGE TYPE/SVR WORDING ALONG SRN TIER CWA...TIERED WITH
LOW/SLGHT CHC PROBABILISTIC WORDING NORTH AND CONTD DRY NRN/NERN
CWA...PROVIDING CONSIDERABLY GREATER TEMPORAL/SPATIAL DETAIL THIS
AFTN/EVE. ONE OR MORE ADDNL CONVECTIVE SYSTEMS PSBL LATE TONIGHT
WESTERN HALF CWA DRIVEN BY VEERED/INCSG LLVL JETLET ACRS NRN IL
ALONG WITH ARRIVAL OF MORE SIG SD/NE SHORTWAVE ENERGY...SPREADING
EWD/CONTG INTO SAT...THOUGH A MORE COMPLETE 12 UTC MODEL SYNOPTIC
SIGNAL CONSIDERATION STILL NEEDED.
&&
.PREV DISCUSSION... /ISSUED 638 AM EDT FRI JUN 29 2012/
AVIATION...
12Z TAFS...NO SIGNIFICANT ANTICIPATED FOR THE 12Z TAFS...WITH MAIN
CONCERN CONTINUING TO FOCUS ON CONVECTIVE CHANCES. SEVERAL SMALL
SCALE WEAK DISTURBANCES CONTINUE TO PROGRESS THROUGH RATHER STRONG
MID/UPPER LEVEL FLOW FROM MID MS RIVER VALLEY INTO THE EASTERN
GREAT LAKES. FRONTAL BOUNDARY HAS STALLED FROM NORTHWEST ILLINOIS
INTO NORTHERN INDIANA AND SHOULD CONTINUE TO INTERACT WITH THESE
SMALLER SCALE DISTURBANCES FOR ISOLATED TO SCATTERED SHOWERS AND
THUNDERSTORMS TODAY...BUT ESPECIALLY SOUTH OF THE TERMINALS WHERE
MORE SUBSTANTIAL LOW LEVEL MOISTURE SHOULD RESIDE. WILL NEED TO
WATCH FOR THE POSSIBILITY OF A CONVECTIVELY ENHANCED VORT MAX TO
EMANATE FROM IOWA CONVECTION THIS MORNING THAT COULD SERVE AS A
FOCUS FOR THUNDERSTORM DEVELOPMENT LATE THIS MORNING/EARLY
AFTERNOON. CHANCES OF CONVECTION ARE EXPECTED TO INCREASE SOMEWHAT
TONIGHT AS A STRONGER UPPER LEVEL SHORT WAVE IS EXPECTED TO
APPROACH FROM THE WEST ALLOWING FOR SLIGHT BACKING OF LOW LEVEL
WINDS ACROSS THIS BOUNDARY...AND LOW LEVEL MOISTURE ADVECTION TO
RETURN NORTHWARD. AT THIS FORECAST DISTANCE WILL MAINTAIN WITH A
DRY FORECAST FOR TERMINALS...AND WILL LET LATER ISSUANCES ADDRESS
THIS POTENTIAL WITH LINGERING UNCERTAINTIES AS TO EXTENT OF MID
LEVEL CAPPING. GRADIENT WILL REMAIN WEAK TODAY WITH WEST NORTHWEST
WIND SPEEDS 10 KNOTS OR LESS...BECOMING LIGHT AND VARIABLE THIS
EVENING.
PREV DISCUSSION... /ISSUED 432 AM EDT FRI JUN 29 2012/
SHORT TERM... /TODAY THROUGH SATURDAY NIGHT/
.HOT AND HUMID CONDITIONS TO CONTINUE...
SULTRY CONDITIONS IN PLACE WITH TEMPERATURES IN THE MID 70S TO LOWER
80S ACROSS THE AREA AND DEWPTS IN THE 60S. BOUNDARY THAT AIDED
CONVECTION OVER THE PAST EVENING WAS SITUATED NEAR OR JUST SOUTH OF
THE FORECAST AREA. CHALLENGES ARE TWO FOLD...ONE BEING TEMPS/HEAT
INDICES AND TWO CONVECTIVE CHANCES.
A GOOD DEAL OF SUNSHINE SHOULD BE SEEN TODAY..ESPECIALLY IN SE
SECTIONS WHERE CONVECTIVE DEBRIS FROM UPSTREAM ACTIVITY SHOULD
EITHER BE KEPT AT A MINIMUM OR AT LEAST DELAYED UNTIL LATER
AFTERNOON. WITH THE WARM OVERNIGHT START...SHOULD NOT BE HARD FOR
MANY SPOTS TO JUMP 10 TO 20 DEGREES BEFORE NOON...WITH VALUES IN THE
LOW TO MID 90S WIDESPREAD. DEWPTS WILL LIKELY REMAIN IN THE MID TO
UPPER 60S...ALLOWING FOR HEAT INDICES TO CLIMB TO NEAR OR ABOVE
ADVISORY CRITERIA. RECORD HIGH AT SOUTH BEND SHOULD BE SAFE (102)
BUT FT WAYNE MAY BE AR RISK WITH VALUE OF 99. AFTER COORDINATION
HAVE OPTED TO GO WITH ADVISORY ROUGHLY ALONG AND EAST OF A
MONTICELLO TO WARSAW TO HILLSDALE LINE. THAT BEING SAID...THE SECOND
AREA OF CONCERN BELOW COULD CAUSE SOME ISSUES WITH ESPECIALLY
WESTERN/SW COUNTIES AND THE ADVISORY.
WATER VAPOR LOOP SHOWS 2 FEATURES OF INTEREST. FIRST WAS A COMPACT
WAVE MOVING INTO SW ND. THE OTHER A MCS IN EASTERN NEBRASKA THAT WAS
WORKING SLOWLY EASTWARD. MODELS EACH KEY IN ON THEIR OWN FEATURES OF
THESE ITEMS AND RUN THE GAMBIT WITH CONVECTIVE SCENARIOS FROM LATE
MORNING INTO THE OVERNIGHT HOURS. IN ADDITION...HI RES MODELS
DEVELOP CONVECTION ACROSS EASTERN IA BETWEEN NOW AND 12Z WHICH
TRACKS EAST INTO ILLINOIS. UNCERTAINTIES EXIST WHETHER THIS IS IN
RESPONSE TO DYING COMPLEX MOVING INTO WESTERN IOWA FROM NEBRASKA OR
FOCUSED LL WAA AND INFLOW. REGARDLESS NO IMMEDIATE SIGNS OF
DEVELOPMENT. HI RES MODELS HAVE A GENERAL WEAKENING TREND AS
ANYTHING MOVES EAST WITH MAIN FOCUS SHIFTING S OF THE AREA. SPC DAY1
OUTLOOK HAS PLACED ENTIRE AREA IN SLGT RISK. WITH EXPECTED TEMPS AND
DEWPTS AND AT LEAST SOMEWHAT MORE SUBDUED CAPPING...SEVERE THREAT
DOES EXIST IF ANY CONVECTION CAN DEVELOP. HAVE OPTED TO RUN WITH
SLGT CHC POPS ALL AREAS THROUGH THIS EVENING WITH CHC POPS IN SW
AREAS CLOSER TO LIKELY TRACK OF CONVECTION. WILL PASS ONTO DAY SHIFT
TO MONITOR TRENDS. NO MENTION OF SVR IN ZONES BUT WILL PLACE WORDING
IN HWO.
RICH LL THETA E AIR WILL REMAIN IN PLACE ACROSS THE REGION THROUGH
SATURDAY NIGHT. ADDITIONAL CHANCES FOR CONVECTION WILL EXIST BUT
TIMING OF THESE CHANCES AND LOCATIONS OF SUBTLE FEATURES REMAINS A
CHALLENGE...WARRANTING HOLDING OFF ON ANY CHANGES. ADDITIONAL HEAT
ADVISORIES COULD BE NEEDED SAT.
LONG TERM...SUNDAY THROUGH THURSDAY
A SHORT WAVE TROUGH EJECTING EASTWARD FROM LARGER SCALE UPPER TROUGH
MOVING ACROSS PACIFIC NORTHWEST THIS MORNING WILL BE THE MAIN
FEATURE OF INTEREST FOR SUNDAY...ACTING TO SUPPRESS MEAN UPPER
RIDGING ACROSS GREAT LAKES/OHIO RIVER VALLEY. DETERMINISTIC
SOLUTIONS ARE IN FAIRLY GOOD AGREEMENT ON THIS FEATURE...WHILE THE
GFS REMAINS THE STRONGEST IN AMPLITUDE. SOME CONCERN THAT THE GFS
MAY BE A BIT TOO AMPLIFIED WITH SOME POTENTIAL CONVECTIVE FEEDBACK
ISSUES ACROSS THE DAKOTAS ON SATURDAY. HOWEVER...PASSAGE OF THIS
SHORT WAVE SHOULD TEND TO ANCHOR A WEAK LOW LEVEL SYNOPTIC
CONFLUENCE ZONE/TROUGH FROM THE MID MS RIVER VALLEY ACROSS THE
SOUTHERN GREAT LAKES REGION THAT SHOULD ALLOW FOR A MODEST AXIS OF
LOW LEVEL MOISTURE TO RESIDE ACROSS THE REGION. CONVECTIVE POTENTIAL
ON SUNDAY WILL DEPEND SOMEWHAT ON EVOLUTION OF SATURDAY/SATURDAY
NIGHT CONVECTION AND HOW ANY RESIDUAL OUTFLOWS EFFECT SFC
BOUNDARY/LOCATION OF BEST LOW LEVEL MOISTURE. DID ADD SOME SLIGHT
CHANCE TSRA POPS FOR SUNDAY GIVEN THIS LARGER SCALE SUPPORT AND
POTENTIAL FOR SECONDARY WEAK SFC TROUGH TO ACCOMPANY THIS SHORT WAVE.
MON-THU PERIOD WILL BE CHARACTERIZED BY TRICKY NORTHWEST FLOW
PATTERN WITH A CONTINUED POTENTIAL FOR WEAK SHORT WAVES TO PROGRESS
DOWN THE UPPER RIDGE INTO THE SOUTHERN GREAT LAKES. SOME POTENTIAL
DURING THIS PERIOD OF ANOTHER LOW LEVEL ISENTROPIC LIFT/THETAE
ADVECTION SURGE THAT COULD OVERCOME CAPPING CONCERNS FOR CHANCES OF
CONVECTION...BUT WITH ONGOING DROUGHT/DRY SOILS...WEAK NATURE OF
THIS FORCING...AND SMALL SCALE OF THESE PERTURBATIONS MAKING IT
DIFFICULT TO TIME ENHANCED PERIODS OF POSITIVE THETAE
ADVECTION...WILL KEEP FORECAST DRY THROUGH THIS PERIOD. ABOVE NORMAL
TEMPERATURES TO CONTINUE THROUGH THE PERIOD AND WILL MAINTAIN HIGHS
IN THE LOWER TO MID 90S MORE INLINE WITH ECMWF MOS GUIDANCE...THAT
MAY NOT BE AS AFFECTED BY SPURIOUS CONVECTION OF THE OVERLY MOIST
GFS/MEX THROUGH MID WEEK. TOWARD THE END OF THE PERIOD...LATEST
TRENDS IN GFS ARE COMING MORE INLINE WITH ECMWF IDEA OF SOME
AMPLIFICATION OF CENTRAL CONUS RIDGE THAT SHOULD KEEP VERY HOT
CONDITIONS IN PLACE THROUGH THE END OF THIS FORECAST PERIOD.
FIRE WEATHER...
ELEVATED FIRE DANGER WILL CONTINUE TODAY ACROSS THE REGION AND
LIKELY INTO THE WEEKEND. HUMIDITY VALUES WILL BE HIGHER...IN THE
35 TO 45 PERCENT RANGE AND WINDS SHOULD REMAIN UNDER 10 MPH. AS A
RESULT...NO HEADLINES WILL BE WARRANTED BUT SPS WILL BE ISSUED TO
HIGHLIGHT CONCERNS.
&&
.IWX WATCHES/WARNINGS/ADVISORIES...
IN...HEAT ADVISORY UNTIL 8 PM EDT THIS EVENING FOR INZ007>009-015>018-
020-022>027-032>034.
MI...HEAT ADVISORY UNTIL 8 PM EDT THIS EVENING FOR MIZ081.
OH...HEAT ADVISORY UNTIL 8 PM EDT THIS EVENING FOR OHZ001-002-004-005-
015-016-024-025.
LM...NONE.
&&
SHORT TERM...FISHER
LONG TERM...MARSILI
AVIATION...FISHER
UPDATE...MURPHYHAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORTHERN INDIANA 1134 AM EDT FRI JUN 29 2012 INZ007>009-MIZ081-OHZ001-002-004-005-015-016-301545- STEUBEN-NOBLE-DE KALB-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY- PAULDING-PUTNAM- INCLUDING THE CITIES OF...ANGOLA...KENDALLVILLE...LIGONIER... AUBURN...GARRETT...HILLSDALE...BRYAN...MONTPELIER...WAUSEON... ARCHBOLD...DEFIANCE...NAPOLEON...PAULDING...ANTWERP...OTTAWA... PANDORA 1134 AM EDT FRI JUN 29 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO... NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT HIGH TEMPERATURES WILL RANGE FROM THE MID AND UPPER 90S TODAY...WITH PEAK AFTERNOON HEAT INDEX READINGS IN THE UPPER 90S TO LOWER 100S EXPECTED. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS...PRIMARILY THIS EVENING...AND AGAIN LATE TONIGHT. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE WITH LARGE HAIL AND DAMAGING WINDS AS THE MAIN THREATS. THERE IS AN ELEVATED FIRE DANGER TODAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED THUNDERSTORMS ARE POSSIBLE SATURDAY...ESPECIALLY SOUTHWEST OF A MICHIGAN CITY INDIANA TO BLUFFTON INDIANA LINE. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE. PEAK AFTERNOON HEAT INDEX READINGS IN THE MID TO UPPER 90S ARE EXPECTED SATURDAY...MAINLY SOUTH OF ROUTE 24. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS AGAIN ON SUNDAY. AN ELEVATED FIRE DANGER WILL PERSIST THROUGH MUCH OF THE PERIOD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX INZ003>006-MIZ077>080-301545- LA PORTE-ST. JOSEPH IN-ELKHART-LAGRANGE-BERRIEN-CASS MI- ST. JOSEPH MI-BRANCH- INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND... MISHAWAKA...ELKHART...GOSHEN...LAGRANGE...TOPEKA...NILES... BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS... STURGIS...THREE RIVERS...COLDWATER 1134 AM EDT FRI JUN 29 2012 /1034 AM CDT FRI JUN 29 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN AND NORTHERN INDIANA. .DAY ONE...TODAY AND TONIGHT HIGH TEMPERATURES IN THE LOWER TO MID 90S ARE EXPECTED THIS AFTERNOON...WITH PEAK AFTERNOON HEAT INDEX READINGS IN THE MID TO UPPER 90S. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EVENING...AND AGAIN LATE TONIGHT. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE WITH LARGE HAIL AND DAMAGING WINDS AS THE MAIN THREATS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED THUNDERSTORMS ARE POSSIBLE SATURDAY...ESPECIALLY SOUTHWEST OF A MICHIGAN CITY INDIANA TO BLUFFTON INDIANA LINE. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE. PEAK AFTERNOON HEAT INDEX READINGS IN THE MID TO UPPER 90S ARE EXPECTED SATURDAY...MAINLY SOUTH OF ROUTE 24. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS AGAIN ON SUNDAY. AN ELEVATED FIRE DANGER WILL PERSIST THROUGH MUCH OF THIS PERIOD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON OR EVENING. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX LMZ043-046-301545- NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI- 1134 AM EDT FRI JUN 29 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF SOUTHEASTERN LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. WINDS AND WAVES WILL BE LOCALLY HIGHER IN AND NEAR ANY STORMS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SUNDAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX/?N=MARINE INZ012>018-020-022>027-032>034-OHZ024-025-301545- STARKE-PULASKI-MARSHALL-FULTON IN-KOSCIUSKO-WHITLEY-ALLEN IN-WHITE- CASS IN-MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-JAY- VAN WERT-ALLEN OH- INCLUDING THE CITIES OF...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...VAN WERT... DELPHOS...LIMA 1134 AM EDT FRI JUN 29 2012 /1034 AM CDT FRI JUN 29 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN INDIANA AND NORTHWEST OHIO. .DAY ONE...TODAY AND TONIGHT AFTERNOON HIGH TEMPERATURES IN THE MID TO UPPER 90S...WITH DANGEROUS PEAK AFTERNOON HEAT INDEX VALUES REACHING THE LOWER 100S. ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON INTO THIS EVENING. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE WITH LARGE HAIL AND DAMAGING WINDS AS THE MAIN THREATS. THE GREATEST RISK OF SEVERE STORMS IS PRIMARILY ALONG AND SOUTH OF ROUTE 24 IN INDIANA THIS AFTERNOON...AND ALONG AND SOUTH OF ROUTE 30 IN OHIO THIS EVENING. THUNDERSTORMS ARE POSSIBLE AGAIN LATE TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED THUNDERSTORMS ARE POSSIBLE SATURDAY...ESPECIALLY SOUTHWEST OF A MICHIGAN CITY INDIANA TO BLUFFTON INDIANA LINE. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE. PEAK AFTERNOON HEAT INDEX READINGS IN THE MID TO UPPER 90S ARE EXPECTED SATURDAY...MAINLY SOUTH OF ROUTE 24. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS AGAIN ON SUNDAY. AN ELEVATED FIRE DANGER WILL PERSIST THROUGH MUCH OF THIS PERIOD. .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
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
120 PM EDT FRI JUN 29 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0119 PM HAIL GRAND BEACH 41.77N 86.80W
06/29/2012 M0.25 INCH BERRIEN MI TRAINED SPOTTER
&&
BENTLEYThe Chicago radar (KLOT), 99 km away, was scanning. The volume nearest the first event began at 17:20 UTC.
47 thunderstorm wind, 6 hail. Local standard time, as filed.
Local media reported numerous trees down throughout Michigan City.
An automated weather sensor at the South Bend Regional Airport recorded a 62 mph wind gust.
A trained spotter reported small to medium size branches blown down. In addition, a wooden sign at a local golf course was blown down.
A trained spotter reported a large tree was blown over onto the top of a car, blocking the street. No reports of injuries were noted.
A trained spotter reported numerous four inch diameter tree limbs down in the area of State Route 15 and U.S. 20.
A trained spotter reported a large tree down across the road, with power lines down in the area.
A trained spotter estimated wind gusts to 65 mph. Numerous trees and tree limbs were observed down across the county.
State police officials reported numerous trees down with widespread power outages in the Rochester area.
The automated weather sensor at the Goshen Airport recorded a 61 mph wind gust.
A trained spotter reported multiple trees and power lines down in the Warsaw area. Estimated wind gusts of 65 to 70 mph occurred for approximately 7 minutes.
A trained spotter observed multiple small tree limbs down with estimated wind gusts to 60 mph.
An off duty NWS employee reported two large healthy trees were blown down.
A trained spotter reported a two foot diameter oak tree down onto a house on North Ogden Point Road.
Amateur radio operators reported the top 40 feet of a 100 foot radio tower was blown down. In addition, the top two sections of a 160 foot tower were blown down.
A trained spotter estimated wind gusts to 60 mph.
A trained spotter reported a partially cracked tree was blown over onto a residence at County Road 935 North and Warsaw Trail North.
County dispatch reported multiple trees down throughout the county. Power lines were also reported down, with at least two house fires being caused by the downed lines.
Emergency management officials reported a roof was blown off a local fire station, as well as a radio tower being blown down.
A 64 mph wind gust was recorded by a local mesonet site.
A trained spotter estimated wind gusts to 70 mph near the Grissom Air Reserve base. Shingles were observed blown off a roof in the local area.
An off duty NWS employee reported multiple trees down along Indiana 205 in Whitley county. Healthy trees up to five feet in diameter were snapped at the base in Collins.
A 60 mph wind gust was recorded by a mesonet site at the Wabash county central dispatch.
A trained spotter reported several large branches down and one tree down near Mentone on State Route 19.
Emergency management officials reported a tree down on Division Road, as well as County Road 300 West near County Road 1100 North.
A trained spotter reported a 64 mph wind gust with a large tree found uprooted in the area.
The public reported tree branches down, blocking secondary roads in Amboy.
A trained spotter reported 30 trees were blown down in a local part, with several close to two feet in diameter. Three of the trees were reported to have fallen on vehicles.
A trained spotter reported trees uprooted and limbs down in the town of Ashley.
A large tree was reported dowm across Indiana 205, forcing its closure.
An automated weather sensor at the Fort Wayne International Airport recorded a 91 mph wind gust.
A trained spotter reported trees and power lines down.
A trained spotter recorded a 64 mph wind gust at the intersection of State Route 18 and County Road 325 West. A flag pole was also reported blown down in Marion.
A trained spotter recorded a 87 mph wind gusts. Large oak trees limbs were blown down, with siding blown off local residences.
Widespread tree, power line and pole damage occurred across the city of Fort Wayne and locations to the southeast towards the Indiana/Ohio state line. Emergency management officials report around 500 trees down around town. Local officials reported damage easily exceeding two million dollars. Damage estimates to actual property and infrastructure likely at least one million dollars.
A trained spotter reported trees down.
Emergency management officials reported massive damage throughout the northern part of the county with intermittent damage across the remainder of the county. In Decatur, roofs were blown off, trucks blown over and several small fires reported, likely from downed power lines.
Amateur radio operators reported eight to ten inch diameter tree limbs down. In addition, 30 feet of a wooden fence was blown down and a eight foot by 12 foot shed overturned.
A mesonet site recorded a 72 mph wind gust.
A mesonet site recorded a 58 mph wind gust.
A trained spotter estimated wind gusts to 58 mph with trees observed blown down in the area.
Emergency management officials reported three to five foot trees blown down across the county. Windows were blown in at several residences across the county as well as roof damage to barns. Siding was ripped off several buildings and welcome signs in town were blown over.
A trained spotter reported widespread tree damage in Monroeville.
An NWS employee reported numerous trees and tree limbs broken at a residence on the 23000 block of Kammeyer Road. One tree fell onto the porch of the residence, destroying the porch. Siding damage was also observed.
An automated weather sensor at the Auburn Airport recorded a 63 mph wind gust.
A mesonet site recorded a 64 mph wind gust.
Amateur radio operators reported a large tree down across Indiana 205, forcing its temporary closure.
A trained spotter estimated wind gusts to 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2012Every state in 2012This day in weather historyWarnings in Indiana, June 2012
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: 381815, 381831, 380522, 381816, 381817, 380523, 381818, 381820, 381837, 381821, 380524, 381834, 381823, 380527, 381832, 382188, 382190, 382193, 381833, 381822, 382195, 382208, 382231, 381835, 382210, 382232, 381862, 382203, 382229, 382218, 382209, 382219, 382220, 381836, 382207, 381840, 381841, 382212, 382221, 382211, and more.