A weakening bow echo complex pushed southeast into central Indiana during the late morning hours of July the 24th. By the afternoon, the northeast portion of this line of storms began to strengthen and produced a wind damage report in Randolph County.
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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 IND wrote it up.
A weakening bow echo complex pushed southeast into central Indiana during the late morning hours of July the 24th. By the afternoon, the northeast portion of this line of storms began to strengthen and produced a wind damage report in Randolph County.
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 Indianapolis, IN wrote its last area forecast discussion before the first event at Jul 24, 11:23 AM EST, 2 hours 52 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1223 PM EDT SUN JUL 24 2011 .UPDATE... THE AVIATION SECTION HAS BEEN UPDATED BELOW && .SYNOPSIS... THE UPPER HIGH THAT HAS BEEN BRINGING HOT CONDITIONS TO THE AREA WILL SHIFT SOUTHWEST ALLOWING SLIGHTLY COOLER AND DRIER AIR TO ENTER THE REGION EARLY IN THE WEEK AS A WEAK COLD FRONT PASSES. THE FRONT MAY BRING SOME THUNDERSTORMS. LATER IN THE WEEK...THE UPPER HIGH WILL RETURN WITH MORE HOT WEATHER. && .NEAR TERM /REST OF TODAY/... A LINE OF THUNDERSTORMS AND HUGE PLUME OF RAIN BEHIND IT ARE APPROACHING NORTHERN PORTIONS OF CENTRAL INDIANA. AS A RESULT...RAISED POPS TO DEFINITE OVER THE FAR NORTHERN COUNTIES...AND TO LIKELY AS FAR SOUTH AS THE INDY METRO. SOME OF THE STORMS HAVE BEEN SEVERE AT TIMES ACROSS ILLINOIS. HOWEVER...THEY HAVE BEEN WEAKENING OVER THE LAST HOUR. WILL CONTINUE TO MONITOR. LEFT FORECASTED HIGHS AS IS FOR NOW...BUT CONFIDENCE IS LOW IN REGARDS TO THE NORTHERN PORTIONS WHERE RAIN IS ABOUT TO MOVE THROUGH. CURRENT THINKING IS THAT THERE WILL STILL BE ENOUGH TIME LATE THIS AFTERNOON FOR TEMPS TO REBOUND BEHIND RAIN. SO...WILL NOT ADJUST TEMPS AT THIS TIME. UPDATED GRIDS HAVE BEEN SENT. && .SHORT TERM /TONIGHT THROUGH WEDNESDAY/... FOCUS IS ON CHANCES FOR RAIN INTO MONDAY THEN ON TEMPERATURES. MODELS HAVE COME INTO BETTER AGREEMENT FOR THE MOST PART...SO WILL GENERALLY USE A BLEND. THE FRONT WILL MOVE ACROSS THE AREA TONIGHT. WITHOUT A LOT OF UPPER SUPPORT...WILL KEEP POPS IN THE HIGH END OF THE CHANCE CATEGORY. STILL LOOKS LIKE THE FRONT MAY BE ACROSS FAR EASTERN/SOUTHERN PARTS OF THE AREA EARLY ON MONDAY...SO WILL KEEP LOW POPS THERE DURING THE MORNING. THE DRIER AIR DOESN/T ACTUALLY ARRIVE UNTIL MONDAY NIGHT...SO CANNOT RULE OUT AN ISOLATED SHOWER AS THE DEWPOINT BOUNDARY PASSES. HOWEVER BELIEVE COVERAGE WILL BE TOO LOW TO MENTION. HIGH PRESSURE WILL THEN BUILD IN AND PROVIDE DRY CONDITIONS THROUGH WEDNESDAY. NAM HAS COME MORE INTO LINE WITH THE GFS AND KEEPS MOST OF THE COOL AIR TO THE NORTHEAST OF THE AREA. THIS MEANS ALTHOUGH TEMPERATURES WILL NOT BE QUITE AS HOT AS THEY HAVE BEEN...READINGS IN THE 90S WILL STILL BE COMMON MONDAY THROUGH WEDNESDAY AFTERNOONS. WENT WITH A BLEND OF MAV/MET FOR TEMPERATURES. HEAT INDICES WILL REMAIN BELOW CRITERIA THROUGH THE SHORT TERM. && .LONG TERM /WEDNESDAY THROUGH SUNDAY/... GFS SUGGEST A RETURN TO THE PATTERN OF LAST WEEK APPEARS IN STORE ON WEDNESDAY AND THURSDAY AS WARM..RETURN FLOW IS EXPECTED AS HIGH PRESSURE ONCE AGAIN SETS UP TO THE EAST AND HOT AND MOIST SOUTHERLY FLOW BEGINS. GFS SUGGESTS 850MB TEMPS RETURNING TO NEAR 20C...AND THUS HAVE INCREASED EXPECTED HIGH TEMPERATURES TO THE MID 90S. ONCE AGAIN WITH VERY HIGH DEW POINT TEMPERATURES WITHIN THE SOUTHERLY FLOW HEAT ADVISORIES OR WARNINGS MAY NEED TO BE ISSUED ONCE AGAIN. A SIMILAR COLD FRONT IS EXPECTED TO PUSH SOUTH ACROSS INDIANA ON FRIDAY AS THE THE FLOW ALOFT ONCE AGAIN BECOMES NORTHWEST AS THE RIDGE BUILDS ONCE AGAIN OVER THE WESTERN PLAINS. HAVE INCLUDED TSRA CHANCES AT THAT TIME. COOLER NORTHERLY FLOW SETTLES IN ON FRIDAY AS HIGH PRESSURE SETTLES ACROSS THE OHIO VALLEY SATURDAY AND SUNDAY. GOOD MID LEVEL SUBSIDENCE IS SEEN ALONG WITH A COOLER AND DRIER NORTHERLY FLOW. && .AVIATION.../DISCUSSION FOR THE 18Z TAFS/... RADAR TRENDS SHOW THE DECAYING THUNDERSTORMS COMPLEX OVER NORTHWEST INDIANA SLOWLY PUSHING SOUTHEAST. CLOUD COVER ASSOCIATED WITH THIS CLUSTER HAVE PREVENTED MUCH IN THE WAY OF CU DEVELOPMENT. THUS AS THIS SYSTEM PUSHES SOUTHEAST BRIEF MVFR CONDITIONS WILL BE POSSIBLE...HOWEVER THE WHOLE SYSTEM SHOULD COLLAPSE BY 20Z-22Z AND A RETURN TO VFR IS EXPECTED. BROAD LOW PRESSURE TROUGH WILL THEN SLOWLY PUSH ACROSS THE STATE TONIGHT ANN BRIEF MVFR VISIBILITIES WILL BE BE POSSIBLE AS TIME HEIGHTS SHOW LOWER LEVEL SATURATION AND LIGHT WINDS. STRONG SUBSIDENCE AND VFR CONDITIONS RETURN ON MONDAY MORNING AS RELATIVELY COOLER HIGH PRESSURE FILLS IN THE WAKE OF THE FRONT. && .IND WATCHES/WARNINGS/ADVISORIES... EXCESSIVE HEAT WARNING UNTIL 8 PM EDT THIS EVENING FOR INZ021- 028>031-035>049-051>057-060>065-067>072. && SYNOPSIS...50 NEAR TERM...TDUD SHORT TERM...50 LONG TERM....PUMA AVIATION...JP
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 510 AM EDT SUN JUL 24 2011 INZ040>042-048-049-055>057-062>065-068>072-250915- MADISON-DELAWARE-RANDOLPH-HANCOCK-HENRY-JOHNSON-SHELBY-RUSH- MONROE-BROWN-BARTHOLOMEW-DECATUR-DAVIESS-MARTIN-LAWRENCE-JACKSON- JENNINGS- 510 AM EDT SUN JUL 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA. .DAY ONE...TODAY AND TONIGHT. EXCESSIVE HEAT WILL CONTINUE TODAY. HEAT INDEX VALUES BETWEEN 100 AND 110 ARE EXPECTED THIS AFTERNOON. THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. SEVERE STORMS ARE NOT EXPECTED. SOME STORMS WILL PRODUCE GUSTY WINDS AND HEAVY RAIN. LIGHTNING IS A THREAT WITH ANY THUNDERSTORM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THUNDERSTORMS ARE ALSO POSSIBLE MONDAY MORNING. SEVERE STORMS ARE NOT EXPECTED. STORMS ARE POSSIBLE AGAIN ON FRIDAY AND SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. && MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL LOWERCASE) INZ021-028>031-035>039-043>047-051>054-060-061-067-250915- CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY- BOONE-TIPTON-HAMILTON-VERMILLION-PARKE-PUTNAM-HENDRICKS-MARION- VIGO-CLAY-OWEN-MORGAN-SULLIVAN-GREENE-KNOX- 510 AM EDT SUN JUL 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA. .DAY ONE...TODAY AND TONIGHT. EXCESSIVE HEAT WILL CONTINUE TODAY. HEAT INDEX VALUES BETWEEN 100 AND 110 ARE EXPECTED THIS AFTERNOON. THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. SEVERE STORMS ARE NOT EXPECTED. SOME STORMS WILL PRODUCE GUSTY WINDS AND HEAVY RAIN. LIGHTNING IS A THREAT WITH ANY THUNDERSTORM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THUNDERSTORMS ARE POSSIBLE FRIDAY AND SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. && MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL LOWERCASE)
The Indianapolis radar (KIND), 112 km away, was scanning. The volume nearest the first event began at 19:13 UTC.
1 thunderstorm wind. Local standard time, as filed.
Multiple utility poles and trees were reported down with minor structural damage due to damaging thunderstorm wind gusts.
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, July 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: 337580.