1 hail, 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 Jun 26, 12:10 PM CST, 1 hour 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 110 PM CDT MON JUN 26 2006 .DISCUSSION... WILL NOT MAKE BIG CHANGES IN THE ONGOING FORECAST. THE 500 MB TROUGH WILL BE OVER NORTHERN ILLINOIS AND NORTHWEST INDIANA THROUGH WEDNESDAY. THERE WILL BE A CHANCE OF THUNDERSTORMS EACH DAY. THE TEMPERATURE AT 500 MB -16 DEGREE C OVER MINNESOTA AT 00 UTC. LIGHT NORTHWEST WIND UP TO AROUND 600 MB ON THE WINCHESTER PROFILER AND A SOUTHEAST WIND ON THE ACARS SOUNDING FROM ORD AT 0830 UTC. THIS SHOWS THE UPPER AIR TROUGH AXIS OVER WESTERN ILLINOIS AND A SURFACE TROUGH OVER EASTERN ILLINOIS. THE SURFACE TROUGH AXIS IS FORECAST TO DRIFT SOUTH OF NORTHWEST INDIANA AND NORTHEAST ILLINOIS THIS AFTERNOON. MOST OF THE THUNDERSTORMS WILL BE FURTHER SOUTH THAN THIS MORNING. THE THUNDERSTORMS WILL OCCUR WHEN INDIVIDUAL SMALL TROUGHS ROTATE THROUGH. USING THE OMEGA FIELD AT 700 MB NEGATIVE OMEGA IS FORECAST BETWEEN 18 UTC AND 00 UTC TODAY 06 TO 12 UTC TUESDAY MORNING. && .AVIATION... 18 Z TAFS...MAIN FORECAST ISSUE FOR THIS SET OF TAFS IS THE CHANCE OF PRECIPITATION THROUGH THE PERIOD. INITIAL CONVECTION OCCURRING IN NORTHERN ILLINOIS ALONG SOME SORT OF OLD BOUNDARY HAS ONLY A VERY ISOLATED THREAT FOR THUNDER...SO FOR THE INITIAL STAGES KEPT THUNDER OUT OF THE FORECAST FOR THE TAF SITES. THE NEXT AXIS OF INSTABILITY HAS ALREADY INITIATED JUST WEST OF THE ILLINOIS/INDIANA STATE LINE ALONG AND EAST OF THE SURFACE TROF AXIS. THIS POCKET OF INSTABILITY WILL PROPAGATE NORTHWARD INTO NORTHEASTERN ILLINOIS/NORTHWESTERN INDIANA THROUGH THE LATE AFTERNOON AND EARLY EVENING AND WILL INCREASE THE THREAT FOR THUNDERSTORMS ACROSS THE REGION. A LULL IN SHRA AND TSRA IS EXPECTED FROM ABOUT 00 UTC THROUGH 06 UTC AS A SMALL AREA OF SUBSIDENCE SETTLES IN BEHIND THESE STORMS...BUT THEN EXPECTING ANOTHER ROUND OF PRECIP OVERNIGHT AND INTO THE EARLY MORNING AS THE VERTICAL VELOCITIES PICK UP AGAIN. ANOTHER ISSUE OF CONCERN IS THE CHANCES FOR FOG OVERNIGHT. LATEST FOGGY INDEX INDICATES TURBULANT EDDIES AND FAVORS STRATUS OVER FOG...BUT WITH 1+ OF RAINFALL ACROSS MOST OF THE REGION YESTERDAY...THE TOPSOIL SHOULD BE RATHER MOIST. WITH WINDS BECOMING LIGHT AND VARIABLE OVERNIGHT...THERE COULD BE SOME RADIATIONAL FOG THAT DEVELOPS...BUT THIS MAY BE HINDERED DUE TO A MID-LEVEL DECK OF CLOUDS THAT WILL LIMIT HOW STRONG THE INVERSION GETS. THE NEXT SHIFT SHOULD BE ABLE TO GET A FIRMER GRASP ON WHAT WILL WIN OUT OVERNIGHT. IFR CONDITIONS WILL BE THE NORM THROUGHOUT THE TAF PERIOD...BUT SOME BRIEF MVFR CONDITIONS ARE POSSIBLE NEAR THUNDERSTORMS AS CLOUD BASES WILL LOWER TO AROUND 2KFT AT TIMES AS WELL WITH THE POSSIBILITY OF FOG OVERNIGHT. HALBACH && .LOT WATCHES/WARNINGS/ADVISORIES... .IL...NONE. .IN...NONE. .LM...SMALL CRAFT ADVISORY. &&
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 700 AM CDT MON JUN 26 2006 ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011- 019-270930- 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 MON JUN 26 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 A CHANCE OF THUNDERSTORMS FOR ALL OF NORTH CENTRAL AND NORTHEAST ILLINOIS AND NORTHWEST INDIANA TODAY AND TONIGHT. A SLIGHT RISK OF SEVERE THUNDERSTORMS WILL BE OVER SOUTHERN FORD COUNTY AND SOUTHERN IROQUOIS COUNTY IN ILLINOIS AND SOUTHERN BENTON COUNTY INDIANA. THE MAIN THREAT WILL BE DAMAGING WIND AND LARGE HAIL. ANOTHER THREAT FOR THE ENTIRE REGION WILL BE BRIEF PERIOD OF HEAVY RAIN IN THE THUNDERSTORMS. THE RAINFALL MAY PRODUCE LOCAL FLOODING IN LOW LYING AREAS AND AREAS OF POOR DRAINAGE. THERE MAY BE PONDING OF WATER ON ROADS AND STREETS. .DAYS TWO THROUGH SEVEN... TUESDAY THROUGH SUNDAY THERE WILL BE A CHANCE OF THUNDERSTORMS TUESDAY THROUGH WEDNESDAY NIGHT. A SLIGHT RISK OF SEVERE THUNDERSTORMS IS POSTED FOR WEDNESDAY TROUGH WEDNESDAY NIGHT. THE RISK IS FOR SOUTHEASTERN FORD COUNTY... SOUTHERN IROQUOIS IN ILLINOIS AND BENTON COUNTY IN INDIANA. .SPOTTER INFORMATION STATEMENT... SPOTTERS MAY BE NEEDED FOR THE SOUTHERN COUNTIES THIS AFTERNOON. REPORT FLOODING...HIGH WATER ON ROADS AND FLOOD DAMAGE. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE) LMZ740>745-766-270930- WINTHROP HARBOR IL TO MICHIGAN CITY IN- LAKE MICHIGAN- 700 AM CDT MON JUN 26 2006 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS AND INDIANA WATERS OF LAKE MICHIGAN. .DAY ONE... TODAY AND TONIGHT A SMALL CRAFT ADVISORY FOR WAVES UP TO 7 FEET IS IN EFFECT FROM NORTHERLY ISLAND TO MICHIGAN CITY INDIANA UNTIL 10PM CDT THIS EVENING. THERE IS ALSO A CHANCE OF THUNDERSTORMS TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN... TUESDAY THROUGH SUNDAY THERE WILL BE A CHANCE OF THUNDERSTORMS TUESDAY THROUGH WEDNESDAY NIGHT. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)
The Chicago radar (KLOT), 62 km away, was scanning. The volume nearest the first event began at 19:31 UTC.
1 hail. Local standard time, as filed.
Nickel to Quarter size hail fell across parts of eastern Kankakee County, east of Momence to the Illinois Indiana state line. The hail caused signficant crop damage.
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, June 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: 5512106.