An isolated thunderstorm produced an area of wind damage during the evening hours on the 22nd.
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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 ILX wrote it up.
An isolated thunderstorm produced an area of wind damage during the evening hours on the 22nd.
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 Lincoln, IL wrote its last area forecast discussion before the first event at Aug 22, 5:07 PM CST, 1 hour 58 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LINCOLN IL 607 PM CDT WED AUG 22 2007 .DISCUSSION... ISSUED 230 PM CDT WED AUG 22 2007 18Z SURFACE MAP SHOWS SOUTHWEST FLOW PUSHING TEMPERATURES WELL INTO THE 90S AGAIN ACROSS CENTRAL AND SOUTHEAST ILLINOIS...WITH LAWRENCEVILLE AT 98F AT 2 PM. DEWPOINTS IN THE MID 60S TO LOWER 70S WERE RESULTING IN HEAT INDEX VALUES NEAR 100. FRONTAL BOUNDARIES REMAIN WELL NORTH ACROSS WISCONSIN AND IOWA. LATEST RADAR MOSAIC SHOWING SCATTERED THUNDERSTORMS FIRING ACROSS CENTRAL AND NORTHERN MISSOURI...AS WELL AS IN SOUTHWEST MISSOURI NEAR LAWRENCEVILLE. ISSUES OF THE DAY WILL BE THE HEAT/HUMIDITY OVER THE NEXT COUPLE OF DAYS...FRONTAL PASSAGE FRIDAY NIGHT/SATURDAY...AND NEXT SYSTEM AROUND THE MIDDLE OF NEXT WEEK. MAINLY FOLLOWED GFS PATTERNS FOR THE FORECAST. SHORT TERM...TONIGHT THROUGH FRIDAY... PARADE OF MCSS EXPECTED TO CONTINUE TRACKING FROM IOWA INTO WISCONSIN THE NEXT COUPLE OF NIGHTS. SOUTHERN FRINGES OF THESE SYSTEMS ARE EXPECTED TO LARGELY STAY NORTH OF THE ILX CWA. SOME LOW POPS WERE KEPT ACROSS THE FAR NORTH TO ACCOUNT FOR THIS TONIGHT...AND WERE ADDED WEST OF I-55 FOR THIS EVENING UNTIL THE ISOLATED STORMS DIMINISH TOWARD SUNSET. SOUTH-SOUTHWEST WINDS TO CONTINUE TO BRING MORE HOT AIR INTO THE AREA THE NEXT COUPLE DAYS. HIGHS IN THE UPPER 90S ARE LIKELY ALONG AND SOUTH OF I-72 ON THURSDAY...AND SOUTH OF I-70 INTO FRIDAY AS WELL. TEMPERATURES NEAR 100 LIKELY ACROSS THE SOUTHEAST COUNTIES...WHERE DRY CONDITIONS HAVE BEEN PREVAILING. EXPECT ENOUGH MIXING TO DROP DEWPOINTS INTO THE UPPER 60S ON THURSDAY...WHICH SHOULD KEEP THE HEAT INDEX VALUES JUST BELOW ADVISORY CRITERIA. FRONTAL BOUNDARY EXPECTED TO MAKE A SOUTHWARD PUSH THURSDAY NIGHT AND FRIDAY...AS LOW PRESSURE RIDES NORTHEAST ALONG THE BOUNDARY TO NEAR MILWAUKEE BY FRIDAY EVENING. FRIDAY EXPECTED TO LARGELY REMAIN DRY OVER OUR AREA...BUT STORMS EXPECTED TO BEGIN SPREADING ACROSS AREAS WEST OF THE ILLINOIS RIVER DURING THE AFTERNOON...WITH RAIN CHANCES INCREASING DURING FRIDAY NIGHT. SPC CONVECTIVE OUTLOOK HAS NORTHWEST HALF OF CWA IN SLIGHT RISK OF SEVERE DURING THIS PERIOD... DUE TO LARGE HAIL AND HIGH WIND THREATS. LONG TERM...SATURDAY THROUGH WEDNESDAY... COLD FRONT EXPECTED TO PUSH THROUGH THE CWA EARLY SATURDAY. KEPT SHOWERS AND THUNDERSTORMS GOING THROUGH THE DAY...WITH THE THREAT ENDING FROM NORTHWEST TO SOUTHEAST BY LATE AFTERNOON. HIGH PRESSURE BEHIND THE FRONT TO DRIFT EASTWARD ACROSS THE LOWER GREAT LAKES REGION. WARMING TREND EXPECTED TO BEGIN AGAIN BY MONDAY...AS WIND FLOW TURNS MORE SOUTHERLY. NEXT STORM SYSTEM TO SLOWLY MOVE OUT OF THE PLAINS...AND SHOULD BE JUST NORTHWEST OF ILLINOIS BY WEDNESDAY MORNING. MODELS TRENDING A BIT SLOWER WITH THIS SYSTEM THAN PREVIOUS RUNS. EXPECT THE MEASURABLE RAIN CHANCES TO PRIMARILY BE JUST BEYOND THE FORECAST PERIOD. GEELHART/GOETSCH && .AVIATION... ISSUED 607 PM CDT WED AUG 22 2007 EXPECT THE WINDS TO GRADUALLY DECREASE AND SHIFT MORE TO SOUTH OVERNIGHT AS INVERSION SETS IN AND THEN BACK TO SOUTHWEST AS MIXING WORKS TO SURFACE. CI DEBRIS EXPECTED FROM STORM CLUSTERS TO WEST WITH CU DEVELOPMENT EXPECTED DURING DAY TOMORROW...MUCH AS TODAY. DUE TO BOUNDARY EXPECTED TO REMAIN OFF TO THE WEST THROUGH PERIOD...WILL NOT PUT IN PCPN FOR THIS PERIOD. GOETSCH && .ILX WATCHES/WARNINGS/ADVISORIES... NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 240 PM CDT WED AUG 22 2007 ILZ040>057-061>063-066>068-071>073-231100- CASS-CHAMPAIGN-CHRISTIAN-CLARK-CLAY-COLES-CRAWFORD-CUMBERLAND- DE WITT-DOUGLAS-EDGAR-EFFINGHAM-JASPER-LAWRENCE-LOGAN-MACON-MASON- MENARD-MORGAN-MOULTRIE-PIATT-RICHLAND-SANGAMON-SCHUYLER-SCOTT- SHELBY-VERMILION- 240 PM CDT WED AUG 22 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS...EAST CENTRAL ILLINOIS AND SOUTHEAST ILLINOIS. .DAY ONE...THIS AFTERNOON AND TONIGHT HOT AND HUMID WEATHER WILL BE A CONCERN THIS AFTERNOON. TEMPERATURES IN THE 90S COMBINED WITH HIGH HUMIDITY WILL PRODUCE AFTERNOON HEAT INDICES OF 100 TO 105. PERSONS WHO MUST BE OUTSIDE SHOULD DRINK PLENTY OF FLUIDS AND TAKE FREQUENT BREAKS...TO AVOID GETTING DEHYDRATED. DO NOT LEAVE CHILDREN AND PETS UNATTENDED IN PARKED VEHICLES. AN ISOLATED THUNDERSTORM IS POSSIBLE UNTIL 9 PM. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY HOT AND HUMID WEATHER WILL CONTINUE FOR THURSDAY AND FRIDAY...WITH AFTERNOON HEAT INDICES OF 100 TO 105. A CHANCE OF THUNDERSTORMS WILL RETURN TO THE AREA FOR FRIDAY NIGHT AND SATURDAY AS A COLD FRONT PUSHES THROUGH THE AREA. CURRENTLY IT IS TOO SOON TO TELL IF ANY OF THESE STORMS WILL BECOME SEVERE. HOWEVER...LOCALLY HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING WILL BE POSSIBLE WITH THESE STORMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT. ILZ027>031-036>038-231100- FULTON-KNOX-MARSHALL-MCLEAN-PEORIA-STARK-TAZEWELL-WOODFORD- 240 PM CDT WED AUG 22 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS. .DAY ONE...THIS AFTERNOON AND TONIGHT HOT AND HUMID WEATHER WILL BE A CONCERN THIS AFTERNOON. TEMPERATURES IN THE 90S COMBINED WITH HIGH HUMIDITY WILL PRODUCE AFTERNOON HEAT INDICES OF 100 TO 105. PERSONS WHO MUST BE OUTSIDE SHOULD DRINK PLENTY OF FLUIDS AND TAKE FREQUENT BREAKS...TO AVOID GETTING DEHYDRATED. DO NOT LEAVE CHILDREN AND PETS UNATTENDED IN PARKED VEHICLES. ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON AND TONIGHT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY HOT AND HUMID WEATHER WILL CONTINUE ON THURSDAY AND FRIDAY...WITH AFTERNOON HEAT INDICES BETWEEN 95 AND 100. THERE WILL BE A CHANCE OF THUNDERSTORMS THURSDAY THROUGH SATURDAY... WITH A BETTER CHANCE THURSDAY NIGHT THROUGH FRIDAY NIGHT AS A COLD FRONT DROPS THROUGH THE AREA FRIDAY NIGHT. CURRENTLY IT IS TOO SOON TO TELL IF ANY OF THESE STORMS WILL BECOME SEVERE. HOWEVER...LOCALLY HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING WILL BE POSSIBLE WITH THESE STORMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT. KH/AUTEN
The Lincoln radar (KILX), 53 km away, was scanning. The volume nearest the first event began at 01:02 UTC.
1 thunderstorm wind. Local standard time, as filed.
Numerous trees were blown down, especially in the city of Pekin.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2007Every state in 2007This day in weather historyWarnings in Illinois, August 2007
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: 55745.