Thunderstorms affected much of northern Indiana during the morning hours. One storm produced isolated wind damage.
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.
Thunderstorms affected much of northern Indiana during the morning hours. One storm produced isolated wind 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 Aug 9, 4:20 AM EST, 1 hour 43 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 520 AM EDT THU AUG 9 2007 .SHORT TERM... 00Z 5H ANALYSIS DEPICT TWO DISTINCT SHORTWAVES ONE ACRS ERN IA AND OTHER NEAR KABR. FORMER WAVE SUPPORTING AM CONVECTION NOW INTO NWRN IN WITH MCV EVIDENT IN RADAR MOSAIC...WEAKNESS IN E-W AXIS OF MLCIN...ESTABLISHED COLD POOL AND FAVORABLE MCS PROPAGATION VECTORS TO ALLOW CONVECTION TO SPREAD EWD ACRS ENTIRE FA THIS AM. TEMPORAL DETAIL TO ALLOW FOR LULL IN POPS LATE MORNING. THEN FOCUS ON APPROACH OF NEXT SHORTWAVE AS IT TAKES ON SERLY COMPONENT AS GULF STATES RIDGE CONTINUES TO RETROGRADE TO ERN TX/OK AND BUILD SLIGHTLY NORTH. RATHER STRONG INSTABILITY TO DEVELOP BY MIDDAY WITH NAM MODIFIED SNDGS SUPPORTING 3000-3500 J/KG ACRS NRN IN/NWRN OH. LOADED GUN TYPE SOUNDINGS WITH STRONG LOW LEVEL LAPSE RATES AND INCREASED LOWER MIDTROPOSPHERIC FLOW TO 35 TO 40 KNOTS IN 7H- 5H LAYER SUGGESTIVE OF STRONG WIND GUST POTENTIAL. HIGH WETBULB ZERO/THERMAL PROFILE LESS SUPPORTIVE OF LARGE HAIL...THOUGH PRECIP/SML HAIL LOADING POTENTIAL VERY HIGH IN 2.25 PWAT AIRMASS. SIDE CLOSER TO HIR MET POPS THIS AFTERNOON GIVEN STRONG MODEL SIGNALS. HEAT INDICES AGAIN A PROBLEM...THOUGH A FEW DEGREES LOWER THAN PAST TWO DAYS AND UNCERTAINTY OF DURATION WITH AFTERNOON CONVECTION WILL COVER THIS HAZARD IN HWO/WEBSTORY. SHORTWAVE PUSHES RAPIDLY EAST INTO ERN GRTLKS OVERNIGHT AS RIDGE CONTINUES TO BUILD THROUGH THE PLAINS WITH NRLY LOW LEVEL FLOW BRINGING APPRECIABLY COOLER/MORE TOLERABLE DPS. && .LONG TERM... FRIDAY NIGHT THROUGH SATURDAY NIGHT IS GOING TO BE RELATIVELY QUIET WITH HIGH PRESSURE IN THE AREA. 850MB TEMPS FRIDAY THROUGH SATURDAY ARE PROGGED TO BE RELATIVELY THE SAME SO NOT MUCH DIFFERENCE IN EACH DAYS HIGH AND LOW TEMPERATURES...WITH JUST SLIGHTLY WARMER TEMPS EXPECTED ON SATURDAY. 850MB TEMPERATURES KEEP ON STEADILY CLIMBING ON SUNDAY WITH A HIGH OF AROUND 90 EXPECTED...AS A COLD FRONT APPROACHES FROM THE NORTH. THERE IS STILL A QUESTION OF TIMING CONCERNING THIS FRONT THROUGH THE CWA. MODELS HAVE ROUGHLY BEEN MOVING IT THROUGH IN THE SUNDAY EVENING TO MONDAY DAY TIME FRAME. GFS HAS BEEN INDICATING THIS COLD FRONT THROUGH THE CWA FOR THE LAST FOUR TO FIVE RUNS IN ABOUT THE SUNDAY NIGHT/MONDAY TIME FRAME. MEX POP NUMBERS ARE IN THE TWENTY TO THIRTY PERCENT RANGE FOR SUNDAY NIGHT/MONDAY. THE ECMWF ALSO BRINGS THE COLD FRONT THROUGH THE CWA BUT QUICKER THAN THE GFS DOES...BY 12Z MONDAY THE GFS HAS THE FRONT JUST ON THE SOUTHEASTERN EDGE OF OUR CWA WHEREAS THE ECMWF PUTS IT DOWN TO THE OHIO RIVER. OVERALL SUNDAY NIGHT HAS BEEN APPEARING TO BE THE TARGET TIME FOR THE FRONT AND RAINFALL...SO AFTER COLLABORATING WITH NEIGHBORING OFFICES HAVE INCLUDED A SMALL RAIN CHANCE FOR SUNDAY NIGHT. AS SUNDAY NIGHT GETS NEARER...THE RAIN CHANCES MAY BLEED EARLIER INTO SUNDAY OR LATER INTO MONDAY BUT SUNDAY NIGHT IS LOOKING TO BE A GOOD POINT TO INTRODUCE SOME RAIN. ONCE THIS COLD FRONT THEN MOVES THROUGH...HIGH PRESSURE WILL ONCE AGAIN MOVE INTO THE CWA. GFS AND ECMWF ARE INDICATING ANOTHER FRONT FOR TUESDAY NIGHT BUT WILL WANT TO SEE SOME MORE CONSISTENCY IN THE TIMING OF THIS FRONT PLUS THE ASSOCIATED LOW IS WELL UP INTO CANADA AND THE BETTER ENERGY COULD ALSO BE WELL NORTH OF US. && .AVIATION... NMRS FCST CONCERNS THIS TAF PD. ONGOING CONVECTION ACRS NRN IL INTO TAF SITES AROUND DAYBREAK. WITH INFRARED SAT CLOUD TOPS WARMING AND DOWNSTREAM INSTABILITY WEAK HAVE HELD ON MENTION OF TSRA THIS AM...BUT WILL NEED TO CONTINUE TO MONITOR TRENDS NEXT COUPLE OF HOURS FOR PSBL AMENDMENTS. SURFACE DEWPOINTS IN THE MID 70S WITH STRONG INSTABILITY DEVELOPING BY MIDDAY AND APPROACH OF UPSTREAM SHORTWAVE TO TRIGGER ADDITIONAL TSRA THIS AFTN. THOUGH EXACT TIMING STILL IN QUESTION...HAVE TRIED TO COVER GREATEST CHCS IN 4 HR TEMPO GROUPS...STARTING AT 18 UTC AT KSBN AND 20 UCT AT KFWA. ADDITIONAL FINE TUNING OF THIS WILL BE NEEDED ON NEXT TWO SUBSEQUENT ISSUANCES. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SHORT TERM...MURPHY LONG TERM....LOTHAMER AVIATION...MURPHY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORTHERN INDIANA 637 AM EDT THU AUG 9 2007 INZ004>009-012>018-020-022>027-032>034-MIZ078>081-OHZ001-002-004-005- 015-016-024-025-101045- 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-CASS MI- ST. JOSEPH MI-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY- PAULDING-PUTNAM-VAN WERT-ALLEN OH- INCLUDING THE CITIES OF...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...DOWAGIAC...CASSOPOLIS... STURGIS...THREE RIVERS...COLDWATER...HILLSDALE...BRYAN...WAUSEON... ARCHBOLD...DEFIANCE...NAPOLEON...PAULDING...ANTWERP...OTTAWA... PANDORA...VAN WERT...DELPHOS...LIMA 637 AM EDT THU AUG 9 2007 /537 AM CDT THU AUG 9 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO... SOUTHWEST LOWER MICHIGAN AND NORTHERN INDIANA. .DAY ONE...TODAY AND TONIGHT ...SEVERE STORMS EXPECTED THIS AFTERNOON... THUNDERSTORMS WILL MOVE THROUGH THE AREA THIS MORNING. THE STORMS THIS MORNING ARE NOT ANTICIPATED TO BE SEVERE. ADDITIONAL STORMS WILL FORM THIS AFTERNOON. THE AFTERNOON STORMS MAY BE SEVERE WITH DAMAGING WIND GUSTS TO 70 MPH THE MAIN HAZARD. WHILE NO SPECIFIC AREA CAN BE EXCLUDED FROM THE SEVERE RISK...NORTHEAST INDIANA AND NORTHWEST OHIO HAS THE HIGHEST POTENTIAL FOR SCATTERED TO WIDESPREAD SEVERE WIND DAMAGE. SMALL HAIL AND RAINFALL RATES TO 2 INCHES PER HOUR WILL ALSO BE POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS ARE POSSIBLE SUNDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS EXPECTED TODAY. NATIONAL WEATHER SERVICE SKYWARN SPOTTERS ARE ENCOURAGED TO REVIEW REPORTING CRITERIA. SPOTTERS ARE ASKED TO REPORT ANY SEVERE WEATHER EVENTS AND ACTIVATE AMATEUR RADIO NETWORKS AS NEEDED. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX INZ003-MIZ077-101045- LA PORTE-BERRIEN- INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...NILES... BENTON HARBOR...ST. JOSEPH...BUCHANAN 637 AM EDT THU AUG 9 2007 /537 AM CDT THU AUG 9 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT ...SEVERE STORMS EXPECTED THIS AFTERNOON... THUNDERSTORMS WILL MOVE THROUGH THE AREA THIS MORNING. THE STORMS THIS MORNING ARE NOT ANTICIPATED TO BE SEVERE. ADDITIONAL STORMS WILL FORM THIS AFTERNOON. THE AFTERNOON STORMS MAY BE SEVERE WITH DAMAGING WIND GUSTS TO 70 MPH THE MAIN HAZARD. SMALL HAIL AND RAINFALL RATES TO 2 INCHES PER HOUR WILL ALSO BE POSSIBLE. ADDITIONALLY...NORTHERLY WINDS WILL CREATE AN INCREASED RISK FOR RIP CURRENTS TODAY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS ARE POSSIBLE SUNDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS EXPECTED TODAY. NATIONAL WEATHER SERVICE SKYWARN SPOTTERS ARE ENCOURAGED TO REVIEW REPORTING CRITERIA. SPOTTERS ARE ASKED TO REPORT ANY SEVERE WEATHER EVENTS AND ACTIVATE AMATEUR RADIO NETWORKS AS NEEDED. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WWW.WEATHER.GOV/IWX LMZ043-046-061-101045- NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI- MICHIGAN CITY IN TO ST JOSEPH MI OUT TO MID LAKE- 637 AM EDT THU AUG 9 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHEASTERN LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT ...SEVERE STORMS WITH GUSTS TO 60 KNOTS EXPECTED THIS AFTERNOON... THUNDERSTORMS WILL MOVE THROUGH THE LAKESHORE AREA EARLY THIS MORNING. THE STORMS THIS MORNING MAY PRODUCE WIND GUSTS TO 35 KNOTS AND LOCALLY HIGHER WAVES. ADDITIONAL STORMS WILL FORM THIS AFTERNOON. THE AFTERNOON STORMS MAY BE SEVERE WITH EXTREME WIND GUSTS TO 60 KNOTS AND SIGNIFICANT LOCALIZED HIGH WAVES. SMALL HAIL WILL ALSO BE POSSIBLE. ADDITIONALLY...NORTHERLY WINDS WILL CREATE AN INCREASED RISK FOR RIP CURRENTS TODAY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS ARE POSSIBLE SUNDAY NIGHT. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX/PROGRAMAREAS/MARINE/INDEX.PHP
The Northern Indiana radar (KIWX), 57 km away, was scanning. The volume nearest the first event began at 11:01 UTC.
2 lightning, 1 thunderstorm wind. Local standard time, as filed.
Lightning struck a house in the 2200 block of Pleasant Ave in Fort Wayne. The attic suffered moderate damage from the fire, smoke and water, estimated at $20,000. The residents of the house were evacuated by a nearby Kelly Automotive employee who witnessed the bolt of lightning strike the house.
Several trees limbs and power lines were blown down in the city of Lagrange at the intersection of Mountain and Michigan streets.
Two (2) separate bolts of lightning struck 2 South Bend residences during the morning hours. A house was struck, causing a fire that destroyed the top floor. The 2 occupants of the house were able to escape without injury. Damage is estimated at $80,000. Lightning struck an apartment, causing significant damage to a kitchen and two bathrooms. A woman and her 4 sons were able to escape unharmed. Damage is estimated at $40,000.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2007Every state in 2007This day in weather historyWarnings in Indiana, August 2007
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: 56117, 56115, 56139.