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 Jul 18, 6:00 PM CST, 4 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 700 PM CDT TUE JUL 18 2006 .DISCUSSION FOR AFTERNOON GRIDS/ZONES... 225 PM CDT STILL NOT A LOT OF CHANGES TO GOING FORECAST. SFC FNT HAS DROPPED OUT OF CWA WITH LOWERING DEWPTS FILTERING SWWD FROM WI AND LK MICH. REMNANT CU SOUTH OF I-80 SHUD DISSIPATE OVERNIGHT AND BE RELATIVELY CLEAR IF NOT FOR SOME OUTFLOW CI SPILLING DOWN UPR FLOW. THIS CI ASSOC WITH WK UPR TROF IN DAKOTAS WHERE UPPER JET NOSES INTO THE ARENA. THIS WAVE ITSELF DAMPENS OUT OVERNIGHT...MAKING LITTLE HEADWAY INTO THE MS VLY TONIGHT. MODEL DIFFS RATHER INCONSPICUOUS FIRST 36 HRS. ALL SHOWING HIGH PRESS OVER THE ERN LAKES TO SHIFT EAST TO NEW ENGLAND TOMORROW VEERING THOSE NE WINDS TO SE AND RETURNING DEWPTS BACK TO THE MID AND UPR 60S. NEXT WEAK UPR TROF KICKS OUT OF THE ROCKIES AND ACROSS THE NRN PLAINS EARLY WEDNESDAY. SFC MSTR CONVERGENCE APPEARS TO CONVERGE ON THE PLAINS AGAIN WEDNESDAY AND HAVE HELD OFF ON ITS INTRODUCTION TO NRN IL UNTIL WED NGT. BEST CHANCES MAY NOT EVEN OCCUR TIL EARLY THURSDAY MRNG WHEN LOW LVL JET BECOMES MORE DEFINED. AM LEAVING POPS IN CHANCE CATEGORY IN CONSIDERATION OF THERMAL RIDGE POKING INTO NRN IL AND PSBLY CAPPING TSTM ACTIVITY. NAM TIMING OF FROPA ON THURSDAY SLOWER THAN GFS AND AM GOING FOR THE BLEND AND CONSIDERING THE END OF TSTM RISK IN LT AFTN THURSDAY. THUS CLEARING AND COOLER MOVING INTO AREA THURS NGT AND FRIDAY WITH NO OUTLOOK FOR PCPN UNTIL AFTER NEXT TUESDAY. RETURN OF WARMER AIR AND HIGH DEWPTS THURSDAY MAY FLIRT WITH HEAT ADVISORY IN SRN TIER COUNTIES WITH HIGHS APPROACHING MID 90S AND DEWPTS RISING TO MID 70S. WITH FROPA LT THURSDAY...WEEKEND INTO MIDWEEK NEXT WEEK APPEARS TO MAINTAIN NEAR SEASONABLE TEMPS IN THE 80S FOR ALL. RLB && .AVIATION DISCUSSION REGARDING 00Z TAFS... 700 PM CDT HIGH PRESSURE BUILDING OVER THE REGION FOLLOWING THE FRONTAL PASSAGE. NWLY WINDS WILL PERSIST THROUGH THE NIGHT BEFORE SHIFTING MORE SELY BY LATE MORNING AS THE HIGH MOVES OVER THE ERN GREAT LAKES REGION. THE SFC PRESSURE GRADIENT WILL REMAIN STRONG ENOUGH TO KEEP WIND SPEEDS IN THE 10-15KT RANGE THROUGH THE EARLY MORNING HOURS...BUT THE GUSTINESS WILL SUBSIDE WITH THE SETTING SUN. LATEST SATELLITE IMAGERY SHOWS ONLY A FEW CU INVOF GYY... OTHERWISE...SKIES WILL START OUT SKC. THE ONLY CLOUD COVER EXPECTED OVERNIGHT WILL BE SOME CI BLOWOFF FROM A SYSTEM MOVING THROUGH THE UPPER MISSISSIPPI VALLEY. BY LATE MORNING TOMORROW...A RETURN FLOW OF MOISTURE AROUND THE BACK SIDE OF THE SFC HIGH SHOULD LEAD TO DEVELOPING CU OVER ALL OF THE TAF SITES...BUT SKIES ARE EXPECTED TO REMAIN VFR THROUGH THE PERIOD. VSBY IS A BIT OF A QUESTION MARK FOR THE PREDAWN HOURS AS TEMP DEWPOINT SPREADS REACH 1-2 DEG...BUT INCRG HIGH CLOUDINESS AND WINDS AROUND 5KT SHOULD BE SUFFICIENT TO LIMIT ANY RADIATIVE BR DEVELOPMENT. KREIN && .LOT WATCHES/WARNINGS/ADVISORIES... .IL...NONE. .IN...NONE. .LM...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 400 PM CDT TUE JUL 18 2006 ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011- 019-190930- 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- 400 PM CDT TUE JUL 18 2006 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA. .DAY ONE... TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY NIGHT MAINLY NORTH OF INTERSTATE 80. NONE OF THESE THUNDERSTORMS ARE EXPECTED TO BE SEVERE AT THIS TIME. THERE IS ANOTHER CHANCE OF THUNDERSTORMS ON THURSDAY ACROSS THE ENTIRE FORECAST AREA. THERE IS A SLIGHT RISK OF SEVERE STORMS THURSDAY AFTERNOON...MAINLY ALONG AND EAST OF I-39. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NECESSARY TONIGHT. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE) LMZ740>745-766-190930- WINTHROP HARBOR IL TO MICHIGAN CITY IN- LAKE MICHIGAN- 400 PM CDT TUE JUL 18 2006 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS AND INDIANA WATERS OF LAKE MICHIGAN. .DAY ONE... TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY THERE IS ANOTHER CHANCE OF THUNDERSTORMS WEDNESDAY NIGHT AND THURSDAY. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)
The Chicago radar (KLOT), 74 km away, was scanning. The volume nearest the first event began at 04:25 UTC.
1 thunderstorm wind. Local standard time, as filed.
Several trees and power lines were blown down in Mundelein.
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, July 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: 5519552.