A cold front moved through the region triggering showers and thunderstorms. A few of the storms produced severe weather.
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 LSX wrote it up.
A cold front moved through the region triggering showers and thunderstorms. A few of the storms produced severe weather.
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 St. Louis, MO wrote its last area forecast discussion before the first event at Jun 2, 11:01 PM CST, 1 hour 9 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE ST LOUIS MO 1201 AM CDT THU JUN 3 2010 .UPDATE... /1155 PM CDT WED JUN 2 2010/ ALTHOUGH THIS EVENINGS CONVECTION OVER MUCH OF S MO HAS BECOME OUTFLOW DOMINATED... WSW 850MB FLOW THROUGHOUT S HALF OF MO IS HOLDING ELEVATED INSTABILITY AS FAR N AS I-70...ALLOWING THUNDERSTORMS TO HANG TOUGH FROM CENTRAL MO INTO SW IL. CURRENT TRENDS SHOULD CONTINUE FOR SEVERAL MORE HOURS...ALTHOUGH 00Z SHORT RANGE SOLUTIONS DO SUGGEST THAT UNSTABLE AIRMASS WILL EVENTUALLY BE SHUNTED S DURING THE PREDAWN HOURS. SO...HAVE UPPED POPS FOR REMAINDER OF TONIGHT ALONG AND SPCLY S OF A JEF...3LF LN. DON'T BELIEVE THERE WILL BE MUCH OF A SVR THREAT REMAINDER OF TONIGHT...BUT POCKETS OF HEAVY RAIN WILL CERTAINLY PERSIST THROUGH 08-09Z. TRUETT && .DISCUSSION... /419 PM CDT WED JUN 2 2010/ PRIMARY FCST ISSUE WITH THIS PCKG IS AFTN CONVECTIVE DVLPMT. TONIGHT...DESPITE DIFFERENCES IN PLACEMENT AND TIMING...HRRR AND NCEP/NSSL 4KM WRF ALL SHOW SIMILAR SCENARIOS FOR THIS AFTN/EARLY EVENING WITH CONVECTION RAPIDLY DVLPG ALONG A BDRY BETWEEN 20Z AND 00Z. IT IS NOT CLEAR WHETHER THE BDRY DEPICTED IN THE MODEL RUNS IS THE TRUE SFC CDFNT OR AN OUTFLOW BDRY. CONVECTION STILL LOOKS LIKELY GIVEN CDFNT STILL SAGGING SWD THROUGH THE AREA...PLENTY OF CAPE PER SPC MESOANALYSIS GRAPHICS AND MODEL OUTPUT...DECREASING CLOUD COVER...AND APPROACHING SHORTWAVE TROF...BUT IT ISN'T CLEAR WHERE STORMS WILL INITIATE. THE SITUATION IS FURTHER COMPLICATED BECAUSE THUNDERSTORMS HAVE ALREADY FIRED IN KY/SRN MO/NRN AR ALONG THE OUTFLOW BDRY FM THIS MORNING'S MCS WHILE ONLY A LINE OF CU HAD DVLPD IN MO ALONG THE CDFNT. DESPITE LACK OF ECHOES ON RADAR AT ISSUANCE...UNSTABLE ATMOSPHERE WITH AN APPROACHING SFC BDRY SUPPORT CONTINUED POPS FOR TONIGHT. CONVECTIVE TRENDS SHOULD BECOME MORE CLEAR OVER THE NEXT FEW HOURS. THU-FRI...CDFNT SHOULD CONTINUE MOVING SLOWLY SWD BEFORE STALLING ACROSS THE REGION ON THU. WITH HIGH PRESSURE BUILDING IN FROM THE WEST...LGT NLY FLOW WILL TRANSPORT A SLIGHTLY DRIER AIR MASS INTO THE CWA. KEPT CHC POPS IN THE NRN CWA ON FRI WITH A LOW PRES SYS EXPECTED TO TRACK FM THE NRN PLAINS THROUGH IA/MN. SAT-TUE...ANOTHER LOW PRES SYS IS EXPECTED TO MOVE THROUGH SD/MN INTO THE WRN GRTLKS ON SAT/SUN AND DRAG A CDFNT INTO NRN MO. H85 MCONV ALONG THE FNT ON SAT AFTN/NIGHT WITH SUPPORT FM REAR ENTRANCE REGION OF H85 LLJ SUGGEST A CHC FOR SHRA/TSRA ACROSS A LARGE PART OF THE CWA. BY SUN THE BDRY STALLS OUT SOMEWHERE ACROSS THE AREA AS A SFC HIGH BUILDS IN FM THE WEST. THERE IS LOW CONFIDENCE IN THE DETAILS OF THE FCST FOR SAT-TUE DUE TO CONSIDERABLE MODEL DIFFERENCES. KANOFSKY && .AVIATION... /1142 PM CDT WED JUN 2 2010/ AVIATION FORECASTS BASED ON TRENDS MENTIONED IN UPDATED PUBLIC SECTION. TSRA THREAT WILL CONTINUE FOR SEVERAL MORE HOURS IN STL AREA....BUT EXTRAPOLATION OF BACK EDGE OF STORMS SUGGEST STORM THREAT WILL BE OVER FOR COU BY 06Z ISSUANCE. MANWHILE...VERY WEAK AND SPOTTY CONVECTION STILL TRYING TO BUBBLE UP ALONG ILL-DEFINED COLD FRONT VCNTY OF UIN...BUT BELIEVE THAT THE COVERAGE WILL BE SO SPOTTY DID NOT INCLUDE IN THE UIN FORECAST ATTM. STAYED WITH PREVIOUS THINKING OF THE DEVELOPMENT OF MVFR CIGS/VSBYS A FEW HRS BEFORE DAYBREAK IN THIS MOIST AMS...WITH CONDITIONS RAPIDLY IMPROVING TO VFR IN THE 15-16Z TIME FRAME. SPECIFICS FOR KSTL... THUNDERSTORMS STRETCHING FROM STL AREA TO AROUND AIZ ARE PUSHING E-NE...WHICH SHOULD MEAN PERSISTENT SHOWERS AND OCNL TSRA FOR STL THROUGH 08Z OR SO. BELIEVE STRONGEST STORMS PROBABLY PUSHED THROUGH AREA AROUND 04Z...SO ONLY LOWERED CIGS/VSBYS INTO THE MVFR RANGE WITH THE STRONGEST STORMS OVER THE NEXT FEW HOURS. CONTINUED WITH THINKING THAT MVFR CIGS/VSBYS WILL FORM JUST BEFORE DAYBREAK...FOLLOWED BY A RAPID IMPROVEMENT TO VFR DURING THE MID MORNING HOURS. TRUETT && .LSX WATCHES/WARNINGS/ADVISORIES... MO...NONE. IL...NONE. && WFO LSX
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 359 PM CDT WED JUN 2 2010 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-031115- GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL- MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL- CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX MO- LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-BOONE MO- AUDRAIN MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO- LINCOLN MO-GASCONADE MO-WARREN MO-ST. CHARLES MO-FRANKLIN MO- ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO- WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO- MADISON MO-REYNOLDS MO- 359 PM CDT WED JUN 2 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. .DAY ONE...TONIGHT THUNDERSTORMS ARE POSSIBLE ACROSS THE AREA TONIGHT. SOME OF THE STORMS MAY BE STRONG TO SEVERE AND CAPABLE OF PRODUCING DAMAGING WINDS...LARGE HAIL...AND LOCALLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE POSSIBLE ACROSS THE AREA ON THURSDAY. THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE AREA FROM FRIDAY THROUGH SATURDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE LATE THIS AFTERNOON AND TONIGHT. && FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1 KANOFSKY
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1013 PM CDT WED JUN 2 2010 MOZ065-073>075-030400- JEFFERSON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-WASHINGTON MO- 1013 PM CDT WED JUN 2 2010 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN JEFFERSON... WASHINGTON...WESTERN STE. GENEVIEVE AND ST. FRANCOIS COUNTIES UNTIL 1100 PM CDT... AT 1009 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES NORTHWEST OF POTOSI...MOVING EAST AT 20 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... POTOSI... BISMARCK... LEADWOOD... BONNE TERRE... DESLOGE... DE SOTO... FARMINGTON... OLD MINES... MINERAL POINT... IRONDALE... PARK HILLS... OLYMPIAN VILLAGE... BELGRADE... CALEDONIA... FLETCHER... CADET... BLACKWELL... FRANKCLAY... VALLES MILL... FRENCH VILLAGE... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. GKS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1038 PM CDT WED JUN 2 2010 ILZ098-MOZ052-060-061-063-030415- CALHOUN IL-LINCOLN MO-ST. CHARLES MO-ST. LOUIS MO-WARREN MO- 1038 PM CDT WED JUN 2 2010 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LINCOLN...EASTERN WARREN...ST. CHARLES...ST. LOUIS AND CALHOUN COUNTIES UNTIL 1115 PM CDT... AT 1033 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR WRIGHT CITY...MOVING EAST AT 25 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... WENTZVILLE... LAKE ST. LOUIS... DARDENNE PRAIRIE... ST. PAUL... O'FALLON... COTTLEVILLE... ST. PETERS... WELDON SPRING... ST. CHARLES... CHESTERFIELD... MARYLAND HEIGHTS... NEW MELLE... HARVESTER... FORISTELL... FLINT HILL... OLD MONROE... GOLDEN EAGLE... KAMPVILLE... BRUSSELS... BEECHVILLE... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. GKS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1043 PM CDT WED JUN 2 2010 MOZ065-073>075-030430- JEFFERSON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-WASHINGTON MO- 1043 PM CDT WED JUN 2 2010 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN JEFFERSON...SOUTHEASTERN WASHINGTON...STE. GENEVIEVE AND ST. FRANCOIS COUNTIES UNTIL 1130 PM CDT... AT 1038 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR BONNE TERRE...MOVING EAST AT 25 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... BONNE TERRE... DESLOGE... FARMINGTON... PARK HILLS... ROCKY RIDGE... BLOOMSDALE... WEINGARTEN... COFFMAN... VALLES MILL... LEADINGTON... FRENCH VILLAGE... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. GKS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1205 AM CDT THU JUN 3 2010 ILZ059-100-030545- MACOUPIN IL-MADISON IL- 1205 AM CDT THU JUN 3 2010 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MACOUPIN AND MADISON COUNTIES UNTIL 1245 AM CDT... AT 1202 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM GODFREY TO HARTFORD TO PONTOON BEACH...AND MOVING EAST AT 20 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE... PONTOON BEACH... BETHALTO... COLLINSVILLE... GLEN CARBON... MARYVILLE... EDWARDSVILLE... TROY... STAUNTON... HIGHLAND... ROXANA... DORSEY... BUNKER HILL... CARPENTER... PRAIRIETOWN... WORDEN... MARINE... ST. JACOB... ALHAMBRA... LIVINGSTON... POAG... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. GKS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1210 AM CDT THU JUN 3 2010 ILZ079-030545- RANDOLPH IL- 1210 AM CDT THU JUN 3 2010 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN RANDOLPH COUNTY UNTIL 1245 AM CDT... AT 1207 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM COULTERVILLE TO PERCY TO BREMEN TO CHESTER...AND MOVING EAST AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE... PERCY... ROCKWOOD... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. GKS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1259 AM CDT THU JUN 3 2010 ILZ069-070-074-030645- CLINTON IL-MARION IL-WASHINGTON IL- 1259 AM CDT THU JUN 3 2010 ...SIGNIFICANT WEATHER ADVISORY FOR MARION...EASTERN CLINTON AND NORTHEASTERN WASHINGTON COUNTIES UNTIL 145 AM CDT... AT 1254 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES EAST OF PATOKA TO SANDOVAL TO 6 MILES WEST OF WAMAC...MOVING EAST AT 15 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE... CENTRALIA... SALEM... ODIN... CENTRAL CITY... WAMAC... IRVINGTON... KINMUNDY... OMEGA... STEPHEN FORBES STATE PARK... HELM... JUNCTION CITY... TONTI... ALMA... SELMAVILLE... BRUBAKER... WALNUT HILL... CARTTER... IUKA... KELL... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. GKS
The Evansville,IN radar (KVWX), 114 km away, was scanning. The volume nearest the first event began at 06:08 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds blew down a large tree, several tree limbs and power lines in town. The tree knocked down a power pole as it fell causing a power outage.
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, June 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: 238977.