1 thunderstorm wind, 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 Chicago, IL wrote its last area forecast discussion before the first event at Aug 30, 2:30 PM CST, 7 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHICAGO IL 330 PM CDT THU AUG 30 2001 MUST APLOGIZE FOR TARDINESS OF AFD. GOT A LITTLE BEHIND DUE TO EARLIER WARNING SITN BUT JUST ABT CAUGHT UP NOW. ZFP ALREADY SENT. MAIN CHG TO FCST WAS TO LOWER POPS FOR TONIGHT. CURRENT MESO ANALYSES CONTINUE TO SHOW INSTABILITY AXIS WELL TO S OF AREA. TSTMS HAVE BECOME WELL ORGANIZED ACROSS SRN IA AND NRN MO ACROSS WW703 AREA AND OTHER CLUSTER HAS MOVED INTO WRN IN. WITH THIS ACTIVITITY TAKING PLACE WILL BE HARD TO GET MUCH GOING UPSTREAM OF CHI/RFD NXT FEW HRS. DYNAMICS ASSD WITH APCHG COLD FRONT NOT TOO IMPRESSIVE WITH PROFILER WINDS SHOWING POOR SUPPORT FOR TSTMS PROBABLY DUE TO PASSAGE OF WEAK LO LVL TROF THIS MRNG. HOWEVER...PRE FRONTAL AMS IS SHOWING SIGNS OF RECOVERY IN PROFILER WIND FIELDS AND LO LVL DEWPOINTS ARE SUPPORINT SBCAPES AOA 2000 J/KG...SO SOME POTENTIAL DOES EXIECT FOR SCT TSTM DEVELOPMENT YET THIS EVENING...THERFORE WILL CONTINUE MENTION BUT WITH ONLY A 30 PCT POP. FROPA EXPECTD AROUND MIDNIGHT...THEN CONTINENTAL HIGH PRES BUILDS IN OVER UPR GRTLKS SETTING THE STAGE FOR BEAUTIFUL HOLIDAY WEEKEND. AM FAVORING FWC MOS TEMPS IN FCST AS AVN LOOKS A BIT TOO COOL ON HIGHS NEXT FEW DAYS BASED ON TRAJECTORY FCSTS AND H85 TEMPS. .CHI...NONE MERZLOCK
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
A large wooden fence was blown over. A dumpster was blown one block and a six inch diameter tree branch was blown about a block from the tree.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2001Every state in 2001This day in weather historyWarnings in Illinois, August 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: 5262729.