1 lightning, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 Jul 23, 3:00 PM EST, 8 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 300 PM EST MON JUL 23 2001 CRNT CONVECTION ACRS NRN FA IS REINTENSIFICATION OF AM ECNTL MI CONVECTION AS IT MOVES INTO INCREASINGLY UNSTABLE AMS WITH SB LI'S M4-M6 AND CAPES TO 2500 J/KG JUST AHEAD OF LK BREEZE FNT. WITH WARM MOIST PROFILES IN WEAK SHEAR ENVIRONMENT EXPECT PULSE TYPE STORMS TO PRIMARILY BLO SVR LIMITS. ENHANCEMENT OF VWP LATER THIS EVENING WITH THE APPROACH OF STRONG SHORT WAVE CRNTLY MOVG INTO ERN WI TO NRN IL. MID LVL WIND PROFILES AT SLATER AND BLUE RIVER GIVING INDICATION OF SOME SIGNIFICANCE TO THIS SHORT WAVE WITH 700 MB FLOW INCRSG TO 30-35 KTS. AND INCREASED INSTABILITY WITH RUC AND SB LI'S M7-M9 AND SBCAPES TO 3500-3800 J/KG ACRS NRN IL INTO WRN FA THIS EVE. ANTICIPATE LINE OF CONVECTION TO FILL AND MAINTAIN INTO FA LATER THIS EVENING WITH THE STRONGEST STORMS APPROACHING SVR LIMITS. WL INDICATED LKLY WRN TWO THIRDS ZONES AND HIGH CHC/SCT WORDING E. AMS SHOULD BE WELL WORKED OVER FOR TUE...BUT WITH POTNL FOR SOME OUTFLOWS REMAINING...LK BREEZE INTERACTIONS AND CAPES TO 1500-2500 J/KG WL HAVE SML CHC POPS TUE AFTN. WHILE UPR RIDGE FLATTENS AM HESITANT TO BRING AS MUCH COOL AIR S AS THE AVN DOES. WL TEMPER AND CONTINUE WITH CURRENT LOWER 80S FOR MAX TEMP FCSTS ON WED AT LEAST UNTIL THE TREND HAS ADDITIONAL RUN TO RUN AND OTHER MODEL SUPPORT. POTNL FOR SOME GRTR MSTR RETURN AND STRENGTH OF APPROACHING WAVE WL INCLUDE TSRA CHCS ON WED BUT ANTICIPATE THE GREATEST CHC FOR ACTIVITY SRN TIER FA ZNS AND SWD. MISFWA AVBL. .IWX...NONE. PBM
The Northern Indiana radar (KIWX), 81 km away, was scanning. The volume nearest the first event began at 04:31 UTC.
1 lightning. Local standard time, as filed.
Fire caused by lightning strike gutted 2nd story of wood frame house.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2001Every state in 2001This day in weather historyWarnings in Indiana, July 2001
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: 5253297.