4 thunderstorm wind, 2 flash flood, 1 hail, as filed by the National Weather Service.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 Lincoln, IL wrote its last area forecast discussion before the first event at Sep 11, 1:29 PM CST, 3 hours 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LINCOLN IL 229 PM CDT MON SEP 11 2006 .DISCUSSION... SHORT TERM...TONIGHT THROUGH THURSDAY... MOST OF THE FORECAST ACTION FOR THIS SEVEN DAY PERIOD WILL BE IN THE FIRST 48 HOURS. EARLIER CONVECTION HAS MOVED MAINLY PAST THE AREA THIS AFTERNOON...WITH SKIES CLEARING OUT AND AIRMASS BECOMING UNSTABLE ONCE AGAIN. SURFACE LOW LIES JUST WEST OF QUINCY WITH A WARM FRONT EXTENDING EASTWARD ACROSS NORTH-CENTRAL ILLINOIS. VISIBLE SATELLITE IMAGERY IS SHOWING SOME TOWERING CUMULUS FORMING NEAR THE SURFACE LOW IN AN AIRMASS WITH TEMPERATURES RECOVERING INTO THE LOW AND MID 80S...YIELDING MIXED LAYER CAPES OF 1500 J/KG. EXPECT ANOTHER ROUND OF CONVECTION TO DEVELOP IN THIS AREA...WITH A FEW HAILERS POSSIBLE AS THEY MOVE NORTHEASTWARD INTO WEST-CENTRAL ILLINOIS. FURTHER EAST...EXTENSIVE CONVECTION HAS DEVELOPED ALONG THE OHIO RIVER VALLEY IN THE JUICIER AND UNCAPPED AIRMASS. THIS ACTIVITY WILL MOVE NORTHWARD AND OVERSPREAD OUR SOUTHEASTERN ZONES. FOR TONIGHT...WILL HAVE CATEGORICAL POPS OVER THE EAST AND LIKELYS OVER THE WEST WHERE COVERAGE MAY NOT BE AS EXTENSIVE AS IN THE EAST. THE SURFACE LOW WILL TRACK SLOWLY NORTHEASTWARD ACROSS ILLINOIS TONIGHT AND SHOULD BE LOCATED AROUND THE BLOOMINGTON AREA BY 12Z. PREFER THIS POSITION RATHER THAN THE FASTER NAM LOCATION OF SOUTHERN LAKE MICHIGAN BY 12Z. THE SLOWER SOLUTION BEST FITS THE GFS AND NGM MODELS. THE MAIN COLD FRONT WILL SWING EASTWARD TO THE SOUTH OF THE LOW AND PUSH INTO EASTERN ILLINOIS TOWARD MIDDAY. WITH THE AIRMASS REMAINING MOIST AND UNSTABLE OVER THERE...EXPECT THUNDERSTORMS TO INCREASE DURING THE AFTERNOON AS THE FRONT MOVES THROUGH. ONE FLY IN THE OINTMENT FOR STRONG STORMS MAY BE THE MORNING CONVECTION WHICH COULD OVERTURN THE AIRMASS AND KNOCK DOWN ANY POTENTIAL INSTABILITY FOR LATER ON. NEVERTHELESS...PRECIPITATION WILL BE LIKELY AND WILL CARRY 70 POPS IN THE EAST...WITH CHANCE POPS IN THE WEST. THE PRECIPITATION SHOULD BE TAPERING OFF FROM WEST TO EAST TUESDAY NIGHT AS THE LOW PRESSURE AND COLD FRONT MOVES INTO OHIO. THE NAM MODEL IS SHOWING SOME SHOWERS DEVELOPING WEDNESDAY IN THE COLD AIR BEHIND THE FRONT...BUT ANY REMAINING MOISTURE SHOULD BE SHALLOW AND DECREASING WITH TIME. IN ADDITION...Q-VECTOR FIELDS SHOW DEEP LAYER SUBSIDENCE OVERSPREADING ILLINOIS. WILL LEAVE A SLIGHT CHANCE POP OVER THE EASTERN COUNTIES WEDNESDAY MORNING...OTHERWISE IT SHOULD BE DRY AND COOLER. THE CENTER OF THE SURFACE RIDGE IS EXPECTED TO MOVE INTO CENTRAL ILLINOIS LATE WEDNESDAY NIGHT...SO THIS SHOULD BE THE COLDEST MORNING THIS WEEK WITH LOWS POSSIBLY GETTING INTO THE UPPER 40S IN THE NORTH. LONG TERM...FRIDAY THROUGH MONDAY... FOR THE PAST TWO DAYS THE EXTENDED GFS AND ECMWF HAVE BEEN IN DECENT AGREEMENT IN SWINGING THE NEXT COLD FRONT INTO THE MIDWEST LATE SUNDAY AND EARLY MONDAY. THERE SHOULD BE AT LEAST A COUPLE OF DAYS FOR THE AIRMASS TO RECOVER AHEAD OF THE SYSTEM...SO WILL INTRODUCE SOME CHANCE AND SLIGHT CHANCE POPS SUNDAY NIGHT AND MONDAY. WITH QUITE A BIT OF SUNSHINE FRIDAY THROUGH SUNDAY...TEMPERATURES WILL ONCE AGAIN REACH INTO THE LOWER TO MIDDLE 80S BY THE END OF THE WEEKEND. && .ILX WATCHES/WARNINGS/ADVISORIES... NONE. && 04
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 1147 AM CDT MON SEP 11 2006 ILZ027>031-036>038-040>043-047>053-121100- CASS-CHRISTIAN-DE WITT-FULTON-KNOX-LOGAN-MACON-MARSHALL-MASON- MCLEAN-MENARD-MORGAN-PEORIA-SANGAMON-SCHUYLER-SCOTT-STARK- TAZEWELL-WOODFORD- 1147 AM CDT MON SEP 11 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING IN THE VICINITY OF A WARM FRONT LIFTING NORTHWARD THROUGH THE REGION. THERE IS A SLIGHT RISK THAT SOME OF THESE STORMS COULD BECOME SEVERE...WITH DAMAGING WIND GUSTS AND SMALL HAIL BEING THE PRIMARY THREATS. ISOLATED TORNADOES WILL ALSO BE POSSIBLE WITH THE STRONGEST STORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY...MAINLY FROM 3 PM THROUGH 9 PM. ILZ044>046-054>057-061>063-066>068-071>073-121100- CHAMPAIGN-CLARK-CLAY-COLES-CRAWFORD-CUMBERLAND-DOUGLAS-EDGAR- EFFINGHAM-JASPER-LAWRENCE-MOULTRIE-PIATT-RICHLAND-SHELBY- VERMILION- 1147 AM CDT MON SEP 11 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS...EAST CENTRAL ILLINOIS AND SOUTHEAST ILLINOIS. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING IN THE VICINITY OF A WARM FRONT LIFTING NORTHWARD THROUGH THE REGION. THERE IS A SLIGHT RISK THAT SOME OF THESE STORMS COULD BECOME SEVERE...WITH DAMAGING WIND GUSTS AND SMALL HAIL BEING THE PRIMARY THREATS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A COLD FRONTAL WILL STRETCH ACROSS PARTS OF CENTRAL AND SOUTHEAST ILLINOIS...AND SERVE AS THE FOCUS FOR SHOWERS AND THUNDERSTORMS THROUGH TUESDAY. AT THIS TIME THE STORMS ARE NOT EXPECTED TO BECOME SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY...MAINLY FROM 3 PM THROUGH 9 PM. BARNES
The Lincoln radar (KILX), 82 km away, was scanning. The volume nearest the first event began at 23:03 UTC.
4 thunderstorm wind, 2 flash flood, 1 hail. Local standard time, as filed.
Numerous trees were blown down.
A large tree was blown down.
No damage was reported.
Numerous roads flooded in Havana. Route 136 had 1 to 2 feet of water flowing across it for a time.
Flooding reported in town, resulting in numerous flooded basements.
Tree limbs and corn were blown down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2006Every state in 2006This day in weather historyWarnings in Illinois, September 2006
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: 5528921, 5528917, 5528918, 5528919, 5528163, 5528922, 5528920.