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 May 18, 2:20 PM EST, 1 hour 18 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 220 PM EST FRI MAY 18 2001 FRONT MAKING VERY SLOW PROGRESS WAITING FOR LAST SHRTWV TO PASS BY SOUTH OVERNIGHT. CLEARING INTO NW CWA WHILE RAIN AND SHWRS ALONG AND AHEAD OF FRNT WILL GRADUALLY END SE CWA THIS EVENING. SLOW CLEARING AS FRONT SAGS WITH SOME CI. WILL ADD FOG TO SE GRP WHERE RAIN HAS FALLEN MUCH OF DAY AND SKIES SHOULD CLEAR LATE. A CAT UNDER MOS NW TNGT WITH CLEARING. HIGH PRESSURE AND SUNSHINE FOR THE WKND AND NEAR OR A CAT UNDER MOS SAT NITE/SUN WITH LOW DWPTS. NEXT SYSTEM SHOULD BRING WARM ADVECTION SHWRS LATER SUNDAY NITE THEN STRONG FRONT AND UPPER SYSTEM MONDAY THROUGH MIDWEEK. ONLY CHG TO EXTENDED CUT TMPS TUE-WED. MISFWA AVAILABLE. .IWX...NONE. RES
The Northern Indiana radar (KIWX), 62 km away, was scanning. The volume nearest the first event began at 20:36 UTC.
1 tornado. Local standard time, as filed.
F0 tornado damaged roof of barn. Some debris slightly damaged home.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2001Every state in 2001This day in weather historyThe tornado archive for Indiana, 2001Warnings in Indiana, May 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: 5243009.