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 St. Louis, MO wrote its last area forecast discussion before the first event at Aug 10, 1:45 PM CST, 2 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 245 PM CDT FRI AUG 10 2001 FEW SHWRS IN CNTL MO ARE EFFECTING COU ARE WITH SCT -R...KP CHC FOR THIS EVE. MOST OF THE CWA WL BE DRY THIS EVE AND TNGT. AVN SHWD FNT S OF STL...BUT IS HINTING A GOOD CHC FOR THE STL METRO AREA ON SAT...AND MAVSTL SHWD 60% FOR SAT WHLE FWC IS ONLY 27%...ANY PCPN WL BE S OF STL METRO AREA...SO KP A CHC IN FAM GROUP. ON A LARGE SCALE...BIG HIGH DRFTNG IN THE SWRN PTN OF THE U.S. WITH WEAK ZONAL FLW ACRS NRN PLAINS. MRF SHWD ANOTHER CDFNT PUSHING S INTO MO BY THU AND FRI....SO INTRODUCE A CHC IN THE FCST. FEW SHWRS W AND CNTRL MO TNGT...LOWS WL BE IN THE 60S TO ARND 70. COOLER WX WL CONTINUE ON SAT AND WRMR WX ON SUN. FWCS FCST A BIT WARMER THAN MAVS...I THINK HIGH TEMPS WL BE BTWN FWCS AND MAVS. .STL...NONE.
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
An off duty NWS meteorologist reported some power poles and large trees down just north of Vernon.
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: 5262804.