A cold front dropping into the region triggered isolated thunderstorms during the afternoon of August 22nd. One cell produced gusty winds that blew a few trees down in Toledo in Cumberland County.
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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.
A cold front dropping into the region triggered isolated thunderstorms during the afternoon of August 22nd. One cell produced gusty winds that blew a few trees down in Toledo in Cumberland County.
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, 1:30 PM CST, 1 hour 15 minutes earlier.
Area Forecast Discussion National Weather Service Lincoln IL 230 PM CDT Thu Aug 22 2013 .DISCUSSION... ISSUED 230 PM CDT Thu Aug 22 2013 Forecast problem of today is the convection for tonight, and then the warming late in the weekend through the middle of next week. SHORT TERM...Tonight through Saturday night. Frontal zone over northern IL with upper level wave over eastern IA to northern MO. Wave triggered convective complex over northern IL. Airmass over central IL with MUCAPE values around 2500 and number of outflow boundaries has triggered scattered convection over north central cwa, with widely scattered convection in the southeast regions due to the instability. Expect the pcpn to gradually work its way to the south through evening, and in the southeast possible overnight. Boundary should be south of region Friday, and so will be pcpn free. High pressure to keep air a little drier Saturday. LONG TERM...Sunday through Thursday. Upper level ridge start the building process into the our region Sunday. Southerly surface flow will continue hot and humid air moving into region, which will continue through mid week. Will remain dry through forecast period. Goetsch && .AVIATION... ISSUED 1242 PM CDT Thu Aug 22 2013 Satellite, radar, and surface data shows outflows from the northern IL storm complex. Unstable airmass over the north continues to produce convection. Over northern half of central IL, boundary interaction still seems possible to trigger development and so kept vicinity TS in the TAFs into early evening. Models however all move chances to the southeast through evening and so kept same trend in the TAFS. With ample moisture lingering though, feel fog potential is there overnight and so dropped vis to 3sm during the overnight hours before the drier air moves in on Friday. Goetsch && .ILX WATCHES/WARNINGS/ADVISORIES... NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 316 PM CDT THU AUG 22 2013 ILZ027>031-036-037-040-041-231200- FULTON-KNOX-MARSHALL-MASON-PEORIA-SCHUYLER-STARK-TAZEWELL- WOODFORD- 316 PM CDT THU AUG 22 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS. .DAY ONE...TONIGHT WIDELY SCATTERED THUNDERSTORMS CAN BE EXPECTED THIS EVENING. NO ORGANIZED SEVERE WEATHER IS ANTICIPATED. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SLIGHTLY COOLER AND LESS HUMID AIR WILL SLOWLY FILTER SOUTH INTO THE AREA FRIDAY AND REMAIN WITH US THROUGH SATURDAY. HEAT AND HUMIDITY WILL RETURN FOR SUNDAY AND WILL REMAIN OVER THE AREA THROUGH MOST OF NEXT WEEK. BY SUNDAY...WE SHOULD BE AROUND 90 DEGREES AGAIN...WITH MID 90S POSSIBLE TUESDAY AND WEDNESDAY. HEAT INDEX VALUES WILL BE WELL INTO THE 90S STARTING ON SUNDAY...WITH READINGS AROUND 100 BY TUESDAY AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT. ILZ038-042>057-061>063-066>068-071>073-231200- CASS-CHAMPAIGN-CHRISTIAN-CLARK-CLAY-COLES-CRAWFORD-CUMBERLAND- DE WITT-DOUGLAS-EDGAR-EFFINGHAM-JASPER-LAWRENCE-LOGAN-MACON- MCLEAN-MENARD-MORGAN-MOULTRIE-PIATT-RICHLAND-SANGAMON-SCOTT- SHELBY-VERMILION- 316 PM CDT THU AUG 22 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS...EAST CENTRAL ILLINOIS AND SOUTHEAST ILLINOIS. .DAY ONE...TONIGHT SCATTERED THUNDERSTORMS CAN BE EXPECTED THIS EVENING INTO EARLY TONIGHT. NO ORGANIZED SEVERE WEATHER IS ANTICIPATED...ALTHOUGH A FEW OF THE STORMS TODAY WILL BE CAPABLE OF PRODUCING GUSTY WINDS...BRIEF HEAVY RAIN AND FREQUENT LIGHTNING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SLIGHTLY COOLER AND LESS HUMID AIR WILL SLOWLY FILTER SOUTH INTO THE AREA FRIDAY AND REMAIN WITH US THROUGH SATURDAY. HEAT AND HUMIDITY WILL RETURN FOR SUNDAY AND WILL REMAIN OVER THE AREA THROUGH MOST OF NEXT WEEK. BY SUNDAY...WE SHOULD BE AROUND 90 DEGREES AGAIN...WITH MID 90S POSSIBLE TUESDAY AND WEDNESDAY. HEAT INDEX VALUES WILL BE WELL INTO THE 90S STARTING ON SUNDAY...WITH READINGS AROUND 100 BY TUESDAY AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT. GOETSCH
The Evansville,IN radar (KVWX), 121 km away, was scanning. The volume nearest the first event began at 20:47 UTC.
1 thunderstorm wind. Local standard time, as filed.
A few trees were blown down in Toledo.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2013Every state in 2013This day in weather historyWarnings in Illinois, August 2013
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: 468286.