Strong to severe thunderstorms moved across parts of northern Illinois during the late morning and early afternoon hours of May 31st. These thunderstorms produced very heavy rain, some hail and wind damage.
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 episode as NWS LOT wrote it up.
Strong to severe thunderstorms moved across parts of northern Illinois during the late morning and early afternoon hours of May 31st. These thunderstorms produced very heavy rain, some hail and wind damage.
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 May 31, 8:18 AM CST, 27 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 918 AM CDT MON MAY 31 2010 .DISCUSSION... 345 AM CDT PERIODIC CHANCES OF SHOWERS AND THUNDERSTORMS THROUGH MUCH OF THE FORECAST PERIOD WILL BE THE MAIN FORECAST FOCUS THIS MORNING. A RATHER COMPLICATED UPPER LEVEL FLOW PATTERN CONTINUES WITH BROAD UPPER LEVEL CYCLONIC CIRCULATION CENTERED ACROSS CENTRAL SASKATCHEWAN WITH A MORE PROGRESSIVE QUASI ZONAL FLOW REGIME ACROSS WESTERN AND NORTH CENTRAL CONUS. A CUT OFF UPPER LEVEL CIRCULATION ALSO IS NOTED ACROSS LOWER MS VALLEY WHICH HAS SEVERAL WEAK SHORT WAVES ROTATING NORTHWARD INTO MID MS RVR VALLEY. THE MAIN LEAD UPPER LEVEL SHORT WAVE CONTINUES TO EJECT NORTHEASTWARD THROUGH WESTERN ONTARIO THIS MORNING WHICH IS ALLOWING SFC COOL FRONT TO VERY SLOWLY PROGRESS EASTWARD APPROACHING MS RIVER. LOW LEVEL CONVERGENCE ASSOCIATED WITH THIS TROUGH IS QUITE WEAK AND MUCH OF THE ASSOCIATED SCATTERED SHOWERS AND THUNDERSTORMS HAVE LAGGED WELL BEHIND LOW LEVEL FRONT MORE CLOSELY LINKED TO BROAD DPVA. ONE FEATURE WHICH DOES STAND OUT IN REGIONAL PROFILER DATA WHICH WILL NEED TO BE WATCHED TODAY IS A MID LEVEL SHORT WAVE TROUGH MOVING THROUGH WESTERN MISSOURI. STARTING TO SEE SOME MORE IMPRESSIVE CONVECTION DEVELOP JUST DOWNSTERAM OF THIS FEATURE ACROSS NORTHERN MISSOURI APPARENTLY IN CLOSER PROXIMITY TO THE MAIN LOW LEVEL CONVERGENT AXIS. THE SFC TROUGH AND SHORT WAVE WILL TRACK EASTWARD INTO THE AREA THIS MORNING AND ALSO OF NOTE IS AN UPPER LEVEL JET STREAK LIFTING NORTHEAST OUT OF THE NORTHERN PLAINS/UPPER MIDWEST THIS MORNING THAT PLACES WFO LOT CWA IN RIGHT ENTRANCE REGION OF THIS JET STREAK. GIVEN THE ABOVE FACTORS...STILL FEEL THAT CONVECTION WILL INCREASE IN COVERAGE THIS MORNING MOST LIKELY ALONG THE LOW LEVEL FRONT ALONG AND EAST OF THE MS RIVER. ENVIRONMENT ALSO MORE UNSTABLE EAST OF THE RIVER WITH 100 HPA MIXED LAYER CAPES ANALYZED AROUND 2000 J/KG PER SPC RUC 07Z DATA. EARLIER DURING THE OVERNIGHT HOURS...DID HAVE SOME ISOLATED STORMS DEVELOP ACROSS SOUTHERN PORTIONS OF CHICAGO METRO AREA ASSOCIATED WITH ISENTROPIC LIFT/WAA WITH POSSIBLE INTERACTIONS FROM OLD RETREATING LAKE ENHANCED BOUNDARY FROM YESTERDAY BUT THIS ACTIVITY HAS DIMINISHED...AND EXPECTING THE FOCUS TO SHIFT BACK WESTWARD EARLY THIS MORNING WITH HIGHER POPS AGAIN SPREADING FROM WEST TO EAST THIS MORNING/EARLY AFTERNOON RANGING FROM CHANCE NORTH TO LIKELY SOUTH. THREAT OF SEVERE WEATHER IS RELATIVELY LOW GIVEN CONTINUED WEAK DEEP LAYER SHEAR BUT GIVEN MAGNITUDE OF INSTABILITY CANNOT RULE OUT AN ISOLATED SEVERE STORM TODAY. SOME LOCALLY HEAVY RAINFALL ALSO POSSIBLE DUE TO WEAK MID LEVEL FLOW AND PWATS UP CLOSE TO 1.75 INCHES. POTENTIAL FOR STORMS THIS AFTERNOON SHOULD DIMINISH CLOSER TO LAKE MICHIGAN WITH NORTHEAST FLOW OFF THE LAKE RESULTING IN LESSER INSTABILITY AND COOLER TEMPERATURES AROUND 70 NEAR THE LAKE THIS AFTERNOON. THREAT OF SHOWERS AND STORMS SHOULD END EARLY THIS EVENING AS FRONT PUSHES OFF TO THE EAST AND WEAK SFC HIGH SETTLES INTO THE AREA PROVIDING QUIET CONDITIONS THROUGH MUCH OF THE DAY TUESDAY. BY LATE TUESDAY AFTERNOON...SHOULD RAPIDLY GET BACK INTO STRONGER SOUTHWESTERLY FLOW IN ADVANCE OF THE SASKATCHEWAN UPPER TROUGH THAT WILL BEGIN TO PROGRESS EASTWARD INTO ONTARIO. AS LOW LEVEL JET VEERS TUESDAY NIGHT...STRONG LOW LEVEL THETA-E ADVECTION WILL PUSH EASTWARD WITH FAVORABLE SETUP FOR NOCTURNAL MCS. LATEST SWODY2 DOES EXPAND SLIGHT RISK EASTWARD INTO BIGGER CHUNK OF WFO LOT CWA AND FEEL THAT THIS RISK FOR LOCAL AREA WILL BE MORE NOCTURNAL AND DID NUDGE UP POPS SLIGHTLY FOR THIS TIME PERIOD...BUT THIS TREND MAY NEED TO BE CONTINUED IN UPCOMING FORECASTS. FORECAST FOR WEDNESDAY BECOMES A BIT MUDDLED BY THE EXTENT OF WHATEVER NOCTURNAL AND/OR EARLY WEDNESDAY MORNING CONVECTION DOES OCCUR ACROSS THE LOCAL AREA. ECMWF/UKMET REMAIN A BIT FURTHER NORTH WITH SURFACE LOW TRACK WEDNESDAY WHILE NAM/GFS/SREF ALL POINT TO A MORE SUPPRESSED SFC LOW TRACK ACROSS NORTH CENTRAL/CENTRAL ILLINOIS. HAVE SIDED WITH THE MORE SOUTHERLY SUPPRESSED SFC LOW SOLUTION GIVEN MAJORITY OF DETERMINISTIC RUNS CLUSTERING THIS WAY...AND PERHAPS A SUBTLE TREND TO THIS IDEA BEGINNING IN THE NEW 00Z ECMWF DATA. WITH THIS IN MIND...KEPT CHANCE POPS GOING WEDNESDAY...AND BY WEDNESDAY NIGHT INDICATING A NORTH SOUTH GRADIENT TO POPS WITH HIGHEST POPS SOUTH. MORE ROBUST SHEAR FOR WEDNESDAY ALSO POSES THE POSSIBILITY OF SEVERE RISK...AND MUCH OF FORECAST AREA HAS BEEN PLACED IN SWODY3 SLIGHT RISK. HARD TO JUSTIFY MANY CHANGES TO THE FORECAST THURSDAY AND BEYOND AT THIS POINT WITH LOW AMPLITUDE MID/UPPER LEVEL FLOW CONTINUING. MAINTENANCE OF SOUTHEAST CANADIAN UPPER LOW LIKELY TO YIELD FAIRLY STRONG LOW LEVEL BAROCLINCITY ACROSS THE AREA LATE WEEK INTO NEXT WEEKEND WITH PERIODIC CONVECTIVE CLUSTERS POSSIBLE WHICH FOR NOW CAN ONLY BE COVERED WITH BROADBRUSH CHANCE POPS THAT INHERITED FORECAST ALREADY HIGHLIGHTED. MARSILI && .AVIATION... //ORD AND MDW CONCERNS...UPDATED 14Z... MORNING AND AFTERNOON TS ACTIVITY AND DURATION SHEA //DISCUSSION...UPDATED 12Z... 14 UPDATE...CONCERNS OVERALL SURROUNDING CURRENT CONVECTIVE ACTIVITY. ATMOSPHERE CONTINUING TO DESTABILIZE OVER THE TRACON...WITH HIGHEST INSTABILITY SPREADING FROM VPZ TO IKK. PRESENT LINE OF STORMS ORIENTED SW TO NE - STORMS CORES MOVING NE BUT MAIN LINE IS HAS AN EASTERLY COMPONENT...AND IF IT MAINTAINS STRENGTH/SPEED... SHOULD CROSS OVER ORD JUST BEYOND 1630 AND MDW BEYOND 1715. CANNOT DISCOUNT ACTIVITY PRIOR TO PRESENT LINE...AND VIA COLLABORATION...FELT IT WAS BEST HANDLED IN A TEMPO - THOUGH ACTIVITY IS EXPECTED. ACTIVITY WILL LIKELY PERSIST THROUGH 21Z WITH THE SLOWER TREND OF THE FRONT...BUT CURRENT AMD IS FOLLOWING 12Z UPDATE...WILL MONITOR ADJUST ACCORDINGLY WITH THE FORTHCOMING UPDATES. SHEA THE COLD FRONT WAS IN WISCONSIN AND NORTHWEST ILLINOIS. ISOLATED THUNDERSTORMS HAVE FORMED AHEAD OF THE FRONT THIS MORNING. THE AIR IS VERY UNSTABLE AND MAY REMAIN SO DURING THE REST OF THIS MORNING AND EARLY AFTERNOON. THUNDERSTORMS MAY DEVELOP AROUND THE AIRPORTS THIS MORNING BUT MAY BE SCATTERED. AS THE FRONT MOVES THROUGH THIS EARLY AFTERNOON...THUNDERSTORMS ARE FORECAST TO BECOME MORE NUMEROUS. WE WILL KEEP THE TEMPO GROUPS FOR THUNDERSTORMS THIS LATE MORNING AND EARLY AFTERNOON. THE FRONT WILL PROVIDE THE LIFTING OR RISING AIR TO INITIATE THUNDERSTORMS. A WIND SHIFT IS EXPECTED THIS AFTERNOON. THE WIND IS FORECAST TO BE NORTH THEN WILL BECOME NORTHEAST BY THIS EVENING. A HIGH WILL MOVE INTO SOUTHERN WISCONSIN BY EARLY TUESDAY MORNING AND THE WIND WILL BECOME LIGHT AND VARIABLE. WE WILL SEE HOW MUCH RAIN FALLS TODAY TO SEE IF WE NEED TO ADD SOME FOG FOR TONIGHT. //ORD AND MDW CONFIDENCE...UPDATED 14Z... * MEDIUM - HIGH CONFIDENCE ON TS COVERAGE OVER THE TERMINALS IN THE 15 TO 20Z TIME FRAME * MEDIUM CONFIDENCE FOR ONSET AT 15Z...HIGHER FOR 16Z * MEDIUM CONFIDENCE ON TS DURATION ENDING AT 19Z * HIGH CONFIDENCE IN WIND SHIFT TO NE'RLY LATE THIS AFTERNOON * SHEA //OUTLOOK FOR ORD/MDW FOR 18Z TUESDAY-12Z SATURDAY...UPDATED 12Z... MONDAY NIGHT...VFR. TUESDAY...VFR. WEDNESDAY...CHANCE OF TSRA AFTERNOON AND NIGHT. MVFR POSSIBLE WITH PRECIP. THURSDAY...CHANCE OF TSRA ENDING DURING THE NIGHT. MVFR POSSIBLE WITH PRECIP. FRIDAY...VFR. SATURDAY...VFR. && .MARINE... 307 AM...MAIN FORECAST CONCERNS THIS MORNING ARE TIMING OF THE NEXT COLD FRONT TUESDAY NIGHT INTO WEDNESDAY ALONG WITH THE TRACK OF ANOTHER AREA OF LOW PRESSURE WEDNESDAY NIGHT INTO THURSDAY. IN THE SHORT TERM...FIRST COLD FRONT IS PUSHING SOUTHEAST ACROSS NORTHERN LAKE MICHIGAN AND IS EXPECTED TO HAVE MOVED SOUTHEAST OF THE LAKE BY LATE MORNING. WINDS WILL SHIFT NORTHERLY BEHIND THE FRONT. COULD BE A BRIEF...1 TO 2 HR...PERIOD OF WINDS TO 20 KTS OR SO ALONG AND BEHIND THE FRONT...BUT GRADIENT BEHIND THE FRONT REMAINS RATHER WEAK. ANOTHER RIDGE OF HIGH PRESSURE WILL BUILD INTO THE WESTERN LAKES TONIGHT. NORTHERLY FLOW WILL DIMINISH INTO THIS EVENING. AS THE HIGH DRIFTS EAST TUESDAY MORNING...WINDS WILL SHIFT BACK TO SOUTHERLY. GRADIENT TIGHTENS SOME TUESDAY AFTERNOON INTO TUESDAY EVENING AS ANOTHER LOW MOVES ACROSS ONTARIO. WINDS 15-20KTS SEEM REASONABLE ESPECIALLY OVER NORTHERN LAKE MICHIGAN WITH SOME HIGHER GUSTS POSSIBLE. ANOTHER COLD FRONT WILL MOVE SOUTH ACROSS THE LAKE TUESDAY NIGHT INTO WEDNESDAY MORNING AND IS EXPECTED TO MOVE SOUTH OF SOUTHERN LAKE MICHIGAN BY WEDNESDAY AFTERNOON. HOWEVER...THERE REMAINS SOME UNCERTAINTY AS TO HOW FAR SOUTH THE FRONT WILL MOVE. IN ADDITION...NEW LOW PRESSURE IS EXPECTED TO DEVELOP OVER THE PLAINS AND MOVE NORTHEAST ALONG THIS FRONT WEDNESDAY NIGHT INTO THURSDAY. THE TRACK OF THIS LOW WILL LIKELY BE NEAR SOUTHERN LAKE MICHIGAN...THUS WIND FORECAST DURING THIS TIME IS PROBLEMATIC. A SMALL CHANGE IN THE TRACK OF THE LOW COULD RESULT IN LARGE CHANGES TO THE WIND FORECAST...SPECIFICALLY DIRECTION. ONCE THIS LOW MOVES EAST THURSDAY...WINDS EXPECTED TO TURN NORTHERLY. CMS && .LOT WATCHES/WARNINGS/ADVISORIES... IL...NONE. IN...NONE. LM...NONE. &&
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 552 AM CDT MON MAY 31 2010 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 010945- WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE- DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON- IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON- 552 AM CDT MON MAY 31 2010 /6552 AM EDT MON MAY 31 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS... NORTHEAST ILLINOIS AND NORTHWEST INDIANA. .DAY ONE...TODAY AND TONIGHT. WEATHER HAZARDS EXPECTED: SCATTERED THUNDERSTORMS SOME OF WHICH MAY PRODUCE: HAIL TO THE SIZE OF PENNIES. WIND GUSTS TO 40 MPH. BRIEF HEAVY DOWNPOURS. AREAS AFFECTED AND TIMING: MAINLY NORTH CENTRAL ILLINOIS EARLY THIS MORNING...SHIFTING EASTWARD INTO NORTHEAST ILLINOIS AND NORTHWEST INDIANA LATE MORNING INTO THIS AFTERNOON. DISCUSSION: A WEAK COLD FRONT WILL TRACK ACROSS NORTHERN ILLINOIS AND NORTHWEST INDIANA TODAY. THIS FRONT WILL COMBINE WITH AN UPPER LEVEL DISTURBANCE APPROACHING THE AREA FROM MISSOURI TO PRODUCE SCATTERED THUNDERSTORMS ACROSS THE AREA. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...ALTHOUGH AN ISOLATED SEVERE THUNDERSTORM CANNOT BE RULED OUT. THE THREAT FOR THUNDERSTORMS WILL DIMINISH EARLY THIS EVENING AS THE COLD FRONT MOVES EAST OF THE AREA. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THERE WILL BE A PERIODIC CHANCE OF THUNDERSTORMS FROM TUESDAY NIGHT THROUGH THURSDAY NIGHT. A FEW OF THE STORMS MAY BE SEVERE...MAINLY TUESDAY NIGHT AND WEDNESDAY AFTERNOON. THERE IS ANOTHER CHANCE OF THUNDERSTORMS FRIDAY NIGHT INTO SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO LMZ740>745-010945- WINTHROP HARBOR TO WILMETTE HARBOR- WILMETTE HARBOR TO NORTHERLY ISLAND- NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY- GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY- 552 AM CDT MON MAY 31 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT. THERE IS A CHANCE OF THUNDERSTORMS TODAY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THERE IS ANOTHER CHANCE OF THUNDERSTORMS TUESDAY NIGHT THROUGH THURSDAY NIGHT...AND AGAIN SATURDAY. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-010945- LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH FOX ISLAND 5 NM OFFSHORE- LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI- LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM TOW RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO MID LAKE- 552 AM CDT MON MAY 31 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT. THERE IS A CHANCE OF THUNDERSTORMS TODAY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THERE IS ANOTHER CHANCE OF THUNDERSTORMS TUESDAY NIGHT THROUGH THURSDAY NIGHT...AND AGAIN SATURDAY. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO MARSILI
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 842 AM CDT MON MAY 31 2010 ILZ004-005-311545- BOONE-MCHENRY- INCLUDING THE CITIES OF...BELVIDERE...WOODSTOCK 842 AM CDT MON MAY 31 2010 ...STRONG THUNDERSTORMS MOVING THROUGH PORTIONS OF NORTH CENTRAL ILLINOIS... A CLUSTER OF DEVELOPING THUNDERSTORMS OVER BOONE AND WESTERN MCHENRY COUNTIES WILL CONTINUE THROUGH 10 AM CDT. STRONGER CELLS NOW EXTENDING FROM JUST EAST OF BELVIDERE TO HARVARD WILL BE MOVING THROUGH THE MARENGO...HEBRON AND RICHMOND AREAS BY 930 AM CDT. THESE STORMS MAY BRIEFLY PRODUCE MARBLE SIZED HAIL AND WIND GUSTS TO 40 MPH. FREQUENT LIGHTNING AND HEAVY DOWNPOURS CAN BE EXPECTED AS THESE STORMS MOVE THROUGH. MERZLOCK
The Milwaukee radar (KMKX), 67 km away, was scanning. The volume nearest the first event began at 14:46 UTC.
2 lightning, 1 thunderstorm wind, 1 hail. Local standard time, as filed.
Numerous trees, tree limbs and power lines were blown down in the Bluff Lake area. Some of the trees fell onto buildings.
Nickel size hail was reported near 135th Street and Plainfield Naperville Road.
Lightning struck a water pumping station on Hennipen Drive which knocked the pump out of commission.
Lightning struck a house on Kelly Avenue causing minor damage to the attic.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2010Every state in 2010This day in weather historyWarnings in Illinois, May 2010
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: 232424, 232426, 232439, 232437.