A cold front moved through the area, triggering showers and thunderstorms. A few of the storms produced large hail and damaging winds.
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 area, triggering showers and thunderstorms. A few of the storms produced large hail and damaging winds.
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 Jul 24, 10:17 PM CST, 1 hour 58 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED AVIATION NATIONAL WEATHER SERVICE ST LOUIS MO 1117 PM CDT FRI JUL 24 2009 .UPDATE... /520 PM CDT FRI JUL 24 2009/ ISOLATED SHOWERS HAVE DEVELOPED OVER PARTS OF SOUTHEAST MO/SOUTHWEST IL. WILL GO AHEAD AND MAKE A MINOR UPDATE TO THE FORECAST FOR THIS EVENING TO INTRO SLIGHT CHANCE POPS DOWN THERE. CARNEY && .DISCUSSION... /411 PM CDT FRI JUL 24 2009/ TONIGHT THROUGH SUNDAY...WEAK SFC TROF /PER 19Z SFC ANALYSIS/ ORIENTED APPROX N-S ALONG THE IL/MO BORDER WITH ISOLD SHRA FORMING IN MO...THEREFORE INCLUDED SCHC POPS FOR LATE AFTN IN PARTS OF SWRN IL AND ERN MO. BETTER PRECIP CHCS WILL HOLD OFF UNTIL FORCING FROM CDFNT ARRIVES TONIGHT. EXPECTING CDFNT TO BE SOUTH OF THE AREA BY SAT NIGHT WITH DRY WEATHER FOR LATE SAT NIGHT AND SUN. GFS APPEARS TO BE SUFFERING FROM COMPLEX CONVECTIVE FEEDBACK ISSUES...THEREFORE DISCOUNTED ITS WARM TEMPERATURES IN FAVOR OF A BLEND INCLUDING ECMWF. MONDAY THROUGH THURSDAY...CONTINUED GOOD AGREEMENT BETWEEN ECMWF AND GFS ON LARGE SCALE PATTERN WITH CWA BETWEEN WRN CONUS RIDGE AND ERN CONUS TROF. BOTH MODELS CONTINUE TO ADVERTISE A PATTN SHIFT WITH ERN TROF RETROGRADING SLIGHTLY BY THE MIDDLE OF NEXT WEEK. BELOW NORMAL TEMPS WILL CONTINUE UNDER NW FLOW ALOFT WITH AN OCCASIONAL SHORTWAVE PASSAGE BRINGING A CHANCE OF SHOWERS/THUNDERSTORMS. ONE SUCH SHORTWAVE WILL DRAG A CDFNT THROUGH THE REGION ON TUE/WED. KANOFSKY && .AVIATION... /1059 PM CDT FRI JUL 24 2009/ FOR THE 06Z TAFS...CDFNT EXTDG FM WI SW THRU NERN CO WILL DROP SEWD THRU THE TAF SITES LT TGT AND SAT MRNG. AN MCS WAS DROPPING S-SEWD THRU SERN IA AND NRN IL ALONG AND JUST AHD OF THE CDFNT. THIS MCS WILL DROP S-SEWD THRU UIN BTWN 06Z AND 08Z SAT...THEN LIKELY WKN AS IT DROPS THRU STL/SUS BTWN 08Z AND 10Z SAT. MOST OF THE CONVECTION MAY REMAIN JUST E OF COU LT TGT. MAY JUST INCLUDE VCTS AT COU...BUT INCLUDE A TEMPO GRP OF TSRA IN STL/SUS. MAY ALSO CONT LLWS IN THE COU...STL AND SUS TAFS LT TGT AND EARLY SAT MRNG AS THE MDLS DEPICT A WLY LLJ OVER CNTRL MO...ALTHOUGH IT SHOULD BE PRETTY MARGINAL. THIS CDFNT SHOULD MOVE SEWD THRU UIN BTWN 08-09Z SAT THEN THRU COU...STL AND SUS BTWN 12-14Z SAT. LINGERING SHOWERS MAY CONT IN COU...STL AND SUS DURING THE EARLY TO MID MRNG HRS ALONG AND JUST BHND THE CDFNT. THE SWLY SFC WND WILL VEER ARND TO A W-NWLY DIRECTION LT TGT AND SAT MRNG AFTER THE PASSAGE OF THE CDFNT. OUTSIDE OF SHRA/TSRA ACTIVITY VFR CONDITIONS SHOULD PREVAIL LT TGT AND SAT MRNG. PREVAILING VFR CLOUD CVR SHOULD CLR OUT SAT AFTN AND EVNG AS A SFC RDG BLDS SEWD INTO THE CWA BHND THE CDFNT. GKS && .LSX WATCHES/WARNINGS/ADVISORIES... MO...NONE. IL...NONE. && WFO LSX
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 423 PM CDT FRI JUL 24 2009 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-251145- 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-LEWIS- SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE- CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN- ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON- ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS- 423 PM CDT FRI JUL 24 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. .DAY ONE...TONIGHT THUNDERSTORMS WILL MOVE THROUGH NORTHEASTERN MISSOURI AND WEST CENTRAL ILLINOIS TONIGHT AHEAD OF AN APPROACHING COLD FRONT. SOME OF THE STORMS COULD BE SEVERE...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SCATTERED THUNDERSTORMS ARE EXPECTED TO REDEVELOP ALONG A COLD FRONT ON SATURDAY ACROSS SOUTHEAST MISSOURI AND SOUTHWEST ILLINOIS. SOME OF THESE STORMS COULD BE STRONG TO SEVERE...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WIND GUSTS. THERE IS ANOTHER CHANCE OF THUNDERSTORMS TUESDAY INTO WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED 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 1205 AM CDT SAT JUL 25 2009 MOZ018-019-250545- KNOX MO-LEWIS MO- 1205 AM CDT SAT JUL 25 2009 ...SIGNIFICANT WEATHER ADVISORY FOR KNOX AND LEWIS COUNTIES UNTIL 1245 AM CDT... AT 1201 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8 MILES NORTHWEST OF SOUTH GORIN...OR 18 MILES NORTH OF EDINA...MOVING SOUTHEAST AT 40 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER 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... EDINA... GREENSBURG... COLONY... KNOX CITY... LA BELLE... PLEVNA... LEWISTOWN... EWING... STEFFENVILLE... BARING... HURDLAND... NOVELTY... NEWARK... MONTICELLO... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. IN ADDITION...THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. GKS
The Lincoln radar (KILX), 90 km away, was scanning. The volume nearest the first event began at 06:16 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds blew down numerous trees and tree limbs in town as well as power lines. A few of the trees caused minor damage to a few homes. Two vehicles sustained moderate damage from the fallen trees and tree limbs.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2009Every state in 2009This day in weather historyWarnings in Illinois, July 2009
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: 188556.