


Hazardous Weather Outlook
Issued by NWS Central Illinois
Issued by NWS Central Illinois
091 FLUS43 KILX 161000 HWOILX Hazardous Weather Outlook National Weather Service Lincoln IL 500 AM CDT Sat Aug 16 2025 ILZ027>031-036>038-040>057-061>063-066>068-071>073-171000- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler- Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott- Morgan-Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby- Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 500 AM CDT Sat Aug 16 2025 This Hazardous Weather Outlook is for central Illinois, east central Illinois, southeast Illinois and west central Illinois. .DAY ONE...Today and tonight. The combination of heat and humidity will result in heat indices between 100 and 110 degrees this afternoon. There is a 15% chance of a pop up storm this afternoon and evening. Any storm that develops will be capable of frequent lightning, heavy rain, and locally strong winds. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Once again, the combination of heat and humidity will result in heat indices between 100 and 110 degrees Sunday afternoon. In addition, there will be a 15% chance for thunderstorms during the afternoon and evening. There is a level 1 of 5 (marginal) risk for severe weather from those storms, the main risk coming from damaging wind gusts. There is a 30% chance of thunderstorms Tuesday and Wednesday. It is too early to determine the severe weather potential. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated through tonight. $$ Bumgardner