1 thunderstorm wind, as filed by the National Weather Service.
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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 May 7, 1:50 AM CST, 1 hour 40 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 250 AM CDT TUE MAY 7 2002 SFC LOW HAS BEEN HOLDING OVR WRN/CNTRL KS THRU EVE AND HAS DEEPENED ABOUT 5 MB IN LAST 12 HRS. 850MB PROFILERS SHOW 50-55KT LLJ FEEDING MSTR FM TX/OK/AR INTO SRN KS AND EXTRM SRN MO ALG/S OF MULTIPLE COMPLEXES THAT HAV BEEN ROLLING THRU SRN MO ALL NGT. MODELS HAVE LOW BEGINNING TO LIFT NEWD INTO WISCONSIN THIS AFTN WITH STG SWLY FLOW AHD OF IT. GUID INCREASES TEMPS INTO LOWER 80S TDA FOR CWA. HWVR THIS LAST MCS MOVING INTO SW MO SHOULD BLOCK WAA PATTERN FOR AN ADDITIONAL 4-5 HRS. LOOK FOR PCPN TO LESSEN AS IT MOVES THRU CWA BUT THE CLDNS/LOW LVL FLOW INTERRUPTION SHUD BE ENUF TO KEEP TEMPS MOSTLY IN 70S TDA. LOOKS LIKE WRM PUNCH WILL RETURN LATE THIS MRNG AND EARLY THIS AFTN BRINGING ACTUAL WRM FNT TO STJ-STL LN ABOUT THE TIME THINGS BEGIN TO FIRE UP. LOOK FOR MOST ACTIVITY THIS AFTN TO BE OVR NRN PTN CWA ALG/N OF WHEREVER WRM FNT ENDS UP. THEN THINGS GET INTERESTING FOR TNGT. LOOK FOR STG CONVECTION ALG/AHD OF CDFNT THAT SWEEPS SEWD ACRS CWA LATE TONIGHT AND ERLY THUR. FF GUIDANCE VALUES NOW EXTREMELY LOW...1/2 TO 1 INCH OVR MANY COUNTIES. PER COORD WITH SGF/ILX (THANKS GUYS) THEY ARE INCLUDING ALL THEIR CWA IN FLOOD WATCHES FOR TDA/TNGT AND WE WILL DO THE SAME. AMS RECOVERY SHOULD BE PRETTY GOOD TODAY AS LLJ KICKS MSTR NWD QUICKLY INTO AREA. WILL CARRY HIGH POPS IN ALL AREAS TNGT WITH FNT PASSING THRU. COOLER AND DRYER AIR TMW. .STL...FLOOD WATCH FOR TDA/TNGT FOR ENTIRE CWA. PEDIGO
The St Louis radar (KLSX), 83 km away, was scanning. The volume nearest the first event began at 09:29 UTC.
1 thunderstorm wind. Local standard time, as filed.
The St. Clair County Emergency Operations Center reported trees and power lines down with some homes damaged by downed trees.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2002Every state in 2002This day in weather historyWarnings in Illinois, May 2002
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: 5291836.