2 flood, 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 Chicago, IL wrote its last area forecast discussion before the first event at Sep 12, 2:00 PM CST, 43 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 300 PM CDT TUE SEP 12 2006 .DISCUSSION RE EARLY AFTERNOON ZONES/GRIDS... 300 PM CDT THE MAIN FORECAST ISSUE FOR THE SHORT TERM REVOLVES AROUND THE EVOLUTION OF THE UPPER LOW NOW CROSSING THE UPPER MID WEST. THE SHORT TERM MODEL GUIDANCE FROM THE 12Z CYCLE IS IN QUITE GOOD AGREEMENT ON THE TIMING AND STRENGTH OF THE SYNOPTIC SCALE PATTERN. AS FAR AS RUN-TO-RUN CONSISTENCE...THE LATEST GUIDANCE IS A LITTLE SLOWER WITH THE PROGRESSION OF THE SYSTEM. THE MAIN CHANGE TO THE PREVIOUS FORECAST WILL BE TO DECREASE MAX TEMPS TOMORROW... KEEPING TEMPS IN THE UPPER 60S OVER MOST LOCATIONS AND ONLY AROUND 70 FOR THE CHI METRO AREA...WHILE HOLDING BACK CLOUD THE BACK EDGE OF THE DENSE CLOUD COVER...KEEPING SKIES CLOUDY ACROSS THE CWA THROUGH TOMORROW AFTERNOON AND THEN BRINGING IN GRADUAL CLEARING TOMORROW EVENING AND TOMORROW NIGHT. WITH CLEARING SKIES TOMORROW NIGHT AND DECREASING SFC WINDS ACCOMPANYING SFC HIGH PRESSURE...A GOOD CHANCE OF FG/BR DVLPMNT IS LIKELY...SO HAVE INTRODUCED AREAS FOG TO THE WX GRIDS FOR AFTER MIDNIGHT TOMORROW NIGHT. AS FAR AS POPS/WX ARE CONCERNED...WILL EXTEND LINGERING SHRA/CHC POPS OVER THE ERN PORTIONS OF THE CWA THRU MIDNIGHT TOMORROW NIGHT TO REFLECT THE TREND OF SLOWING THE PROGRESSION OF THE UPPER LOW. A PERIOD OF RATHER PLEASANT/DRY WEATHER AS UPPER RIDGING BUILDS OVER THE MIDWEST. HAVE REMAINED CLOSE TO THE GFS/NCEP MANUAL GUIDANCE FOR THE LONG TERM AND HAVE MADE LITTLE CHANGE. THE NEXT SYSTEM TO IMPACT THE CWA WILL NOT BE UNTIL MONDAY AS A DEEP UPPER TROF DIGS OUT OF THE PAC NW AND INTENSIFIES OVER THE NRN PLAINS. THE LATEST GFS GUIDANCE IS A LITTLE FASTER THAN PREVIOUS RUNS...BUT WILL HOLD OFF ON INTRODUCING ANY SGFNT CHANGES TO DAYS 6 AND 7 UNTIL THE TIMING OF THE SYSTEM BECOMES A LITTLE MORE CERTAIN. SO HAVE OPTED TO STAY ON THE SIDE OF CAUTION RATHER THAN RISK FLIP-FLOPPING THE LONG TERM FORECAST. KREIN && .AVIATION DISCUSSION FOR 18Z TAFS... 1250 PM CDT AN AREA OF LOW PRESSURE HAS ACTUALLY FORMED TO THE NW OF ORD THIS MRNG CAUSING WINDS TO SHIFT FROM SE TO SW AND ACTUALLY LOOKING MORE LIKE LIGHT AND VRBL FOR THE REMAINDER OF THE AFTN. NAM LOOKING MORE APT TO VERIFY THAN GFS MODEL AS PREVIOUSLY THOUGHT. AFTER THIS EVENING WHEN LOW MOVES EAST OF TERMINALS...THIS BECOMES RATHER MOOT. WINDS TURN TO NORTH THIS EVENING BUT VEERING INSTEAD OF BACKING AND ALL BLO 10 KTS. AN ABUNDANCE OF IFR AND LOW MVFR ON CIGS...SO WILL NOT STRAY AWAY FROM THIS MINIMAL VARIATION IN CIGS THRU NEXT 24 HRS. MAY BE A BRIEF VFR BREAK ONCE IN A WHILE BUT NOT FREQUENT OR LONG ENUF TO INSERT IN TAF. VSBYS LIKELY TO HOVER PRIMARILY IN MVFR RANGE...PSBLY DROPPING TO 1 OR 2 MILES IN RAIN AND FOG TEMPORARILY OVERNIGHT. SHOWERS WILL CONTINUE TO PLAY THRU THE NEXT 24 HRS BUT NO TSTMS. FIRST BATCH OF SHOWERS MOVG NE THRU NE IL AND NW INDY THIS AFTN. MAY BE MORE AFTN DEVELOPMENT ESP IF ANY CLOUD BREAKS THIS AFTN AS WELL AS WITH CAA ONCE WINDS SHIFT TO NORTH TONIGHT AS UPR TROF PASSES TO EAST OF TERMINALS IN THE PREDAWN HOURS. BEST BET IN THIS SCENARIO OF CIRCUMSTANCES TO GO WITH PERSISTENCE. RLB && .LOT WATCHES/WARNINGS/ADVISORIES... .IL...NONE. .IN...NONE. .LM...SMALL CRAFT ADVISORY THRU WEDNESDAY EVENING. &&
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 430 AM CDT TUE SEP 12 2006 ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011- 019-122200- WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DU PAGE-COOK- LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD- LAKE IN-PORTER-NEWTON-JASPER-BENTON- 430 AM CDT TUE SEP 12 2006 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA. .DAY ONE...TODAY AND TONIGHT THERE WILL BE AREAS OF FOG UNTIL MID MORNING. VISIBILITY MAY BE SIGNIFICANTLY REDUCED IN A FEW LOCATIONS. THERE WILL BE OCCASIONAL THUNDERSTORMS TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT AND MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS WILL NOT BE NEEDED OVERNIGHT. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO LMZ740>745-766-122200- WINTHROP HARBOR IL TO MICHIGAN CITY IN- LAKE MICHIGAN- 430 AM CDT TUE SEP 12 2006 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS AND INDIANA WATERS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT THERE WILL BE AREAS OF FOG UNTIL MID MORNING. VISIBILITY MAY BE SIGNIFICANTLY REDUCED IN A FEW LOCATIONS. THERE WILL BE OCCASIONAL THUNDERSTORMS TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY HAZARDOUS WAVES FOR SMALL CRAFT ARE EXPECTED WEDNESDAY AND WEDNESDAY NIGHT. THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT AND MONDAY. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Water five inches deep was reported along US 41 between Kirkland and County Line Roads. Storm total rainfall of 4.11 inches was measured in Kentland.
Water six inches deep was reported on State Road 71 near SR 352. Water was over the road on a one half to one mile stretch of Highway. Storm total rainfall of 2.43 inches was measured four miles west northwest of Boswell.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2006Every state in 2006This day in weather historyWarnings in Indiana, 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: 5535135, 5535136.