1 tornado, as filed by the National Weather Service.
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 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 10, 6:00 PM EST, 1 hour 3 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 600 PM EST THU JUL 10 2003 AVIATION DISCUSSION 00Z TAFS... COLD FRONT IS MOVING THROUGH NORTHERN INDIANA AT THIS TIME. THE FRONT HAS PASSED THROUGH SOUTH BEND WITH A HEAVY RAIN SHOWER REPORTED AND SHOULD CLEAR THE AREA BY 2Z. KIWX RADAR SHOWS A BROKEN LINE OF WIDELY SCATTERED RAIN SHOWERS ALONG THE FRONTAL BOUNDARY. TIMED THIS INTO FORT WAYNE BY 01Z FOR ONE HOUR. CHANCE OF PRECIPITATION AT SOUTH BEND IS LOW SO KEPT TAF DRY.WRAP AROUND CLOUDS FROM LOW PRESSURE TO THE NORTH SHOULD LOWER CEILINGS OVERNIGHT WITH A LITTLE FOG POSSIBLE. SO ADDED MVFR CEILINGS AND VISIBILITY TOWARD MORNING. CONDITIONS SHOULD IMPROVE BY MORNING. GLL PREVIOUS ZONE FORECAST DISCUSSION... JET MAX OVER NORTHERN PLAINS CAUSING LOW PRESSURE SYSTEM OVER EASTERN WI TO DEEPEN/INSTENSIFY THIS AFTERNOON. THIS TREND SHOULD CONTINUE TONIGHT AS JET DIGS INTO BASE OF TROUGH. WATER VAPOR SHOWING MID LEVEL DRY SLOT PUNCHING INTO NW INDIANA/SW MICHIGAN. PRE-FRONTAL TROUGH LOCATED NEAR THIS MID LEVEL DRY INTRUSION. MID CLOUDS AHEAD OF THE TROUGH HAVE LIMITED DESTABILIZATION TODAY. COLD FRONT DROPPING SE FM MKE-SPI AT 18Z. WOLCOTT PROFILER INDICATING DECENT SPEED SHEAR FOR THIS TIME OF YEAR BUT LITTLE DIRECTIONAL SHEAR. MAIN TRIGGER MECHANISM FOR THUNDERSTORMS SHOULD BE THE SURFACE PREFRONTAL TROUGH AND COLD FRONT. IF AIRMASS CAN DESTABILIZE ENOUGH DURING THE AFTERNOON COULD SEE SCATTERED OR PERHAPS EVEN A LINE OF STORMS DEVELOP ALONG FRONT/TROUGH. HOWEVER, GIVEN WEAK INSTABILITY/FORCING, WILL ONLY GO WITH SCATTERED THUNDERSTORM ALONG AND AHEAD OF FRONT MOVES EAST ACROSS FORECAST AREA FROM 00-06Z. COULD BE SOME HEAVY RAIN IN STORMS IF THEY DEVELOP, BUT, DURATION SHOULD BE BRIEF AS FRONT MAKING GOOD PROGRESS EASTWARD, SO THINK ADDITIONAL RAINFALL TONIGHT HAS LITTLE POTENTIAL OF FLASH FLOODING OR HAVING A SIGNFICANT IMPACT ON ONGOING RIVER FLOODING. THUS, WILL LET FLOOD WATCH EXPIRE AT 3PM. CONSIDERABLE POST FRONTAL STRATO CU WITH SCATTERED SHOWERS. THIS SHOULD MOVE INTO OUR AREA LATE TONIGHT AND LINGER INTO FRIDAY. A SECONDARY TROF ROTATING AROUND THE LOW OVER SE ONTARIO THROUGH WESTERN GRTLKS FRIDAY AFTERNOON/EVENING SHOULD ALSO RESULT IN A SCATTERED SHOWERS ACROSS OUR AREA. ETA FORECAST LIFTED INDEX AROUND -2C AND CAPE AROUND 1K J/KG AHEAD OF THIS TROUGH. SPC HAS FORECAST AREA IN GENERAL THUNDER AND CANT RULE IT OUT. HOWEVER, THINK ETA MAY BE OVERDOING INSTABILITY AS STRATO CU MAY LIMIT HEATING, SO WILL NOT INTRODUCE THUNDERSTORMS AT THIS TIME. LOW WILL CONTINUE TO PULL AWAY ACROSS EASTERN CANADA AND HIGH PRESSURE BUILD INTO MID MS VALLY SATURDAY. THIS SHOULD RESULT IN GENERALLY DRY CONDITIONS, THOUGH, AGAIN CANT RULE OUT A FEW INSTABILITY SHOWERS IN THE AFTERNOON. FOR NOW HAVE LEFT FORECAST DRY. ANOTHER UPPER LEVEL TROUGH FORECAST TO DROP INTO WESTERN GRTLKS SUNDAY. VERY LITTLE SURFACE REFLECTION, BUT, MODERATE INSTABILITY MAY BE ENOUGH TO KICK OFF SOME CONVECTION SO HAVE LEFT CHANCE OF THUNDERSTORMS IN FORECAST. RIDGE EXPECTED TO BUILD INTO AREA MONDAY PROVIDING FAIR WEATHER. AN UPPER LEVEL TROUGH ACCOMPANIED BY A SURFACE COLD FRONT FORECAST TO MOVE SE INTO THE WESTERN GRTLKS TUE WITH AT LEAST MODERATE INSTABILITY AHEAD OF TROUGH. THIS SYSTEM SHD CAUSE SOME THUNDERSTORMS IN AREA TUE NGT AND WED. SURFACE RIDGE EXPECTED TO MOVE INTO THE AREA WED NGT AND THU PROVIDING FAIR WEATHER. LITTLE CHANGE MADE TO MOS TEMPS WHICH SHOULD BE SEASONAL THRU THE PERIOD. JT .IWX... IN...NONE MI...NONE OH...NONE
INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005- 015-016-024-025-111030- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORTHERN INDIANA 555 AM EST THU JUL 10 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN INDIANA...NORTHWEST OHIO AND SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON OVER THE ENTIRE AREA. DAMAGING WINDS ARE THE GREATEST THREAT. THE THREAT OF HEAVY RAINFALL SOUTH OF A LINE FROM WINAMAC TO FORT WAYNE TO OTTAWA EXISTS THIS AFTERNOON. ANY ADDITIONAL HEAVY RAINFALL WILL LEAD TO MORE FLOODING AS RIVERS AND STREAMS REMAIN HIGH OR OUT OF THEIR BANKS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A CHANCE FOR THUNDERSTORMS SATURDAY NIGHT AND SUNDAY AND AGAIN ON WEDNESDAY. THE SEVERE POTENTIAL IS UNCERTAIN AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES, OR CHECK OUR WEB SITE AT WWW.CRH.NOAA.GOV/IWX
The Indianapolis radar (KIND), 96 km away, was scanning. The volume nearest the first event began at 00:02 UTC.
1 tornado. Local standard time, as filed.
Law enforcement and emergency management reported a short lived F0 tornado that skipped from near Swayzee to 2 miles east of Swayzee. The tornado was over corn fields during its existence.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2003Every state in 2003This day in weather historyThe tornado archive for Indiana, 2003Warnings in Indiana, July 2003
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: 5372625.