FLUS43 KILX 201655 CCA HWOILX Hazardous Weather Outlook National Weather Service Lincoln IL 1152 AM CDT Mon Apr 20 2026 ILZ027>031-036-037-040-041-047-049-050-211700- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-Schuyler-Mason- Cass-Scott-Morgan- 1152 AM CDT Mon Apr 20 2026 This Hazardous Weather Outlook is for central Illinois and west central Illinois. .DAY ONE...This afternoon and tonight. Minor flooding is ongoing or forecast along portions of the Illinois River. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Minor flooding will continue along portions of the Illinois River. The river is expected to reach moderate flood stage at Havana later in the week. There is chance of thunderstorms Tuesday night. The severe threat appears low at this time. Additional storms are possible Thursday night into Friday. It is too early to determine the severe risk at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated through tonight. $$ ILZ038-042>046-048-051>057-061>063-066>068-071>073-211700- McLean-Logan-De Witt-Piatt-Champaign-Vermilion-Menard-Sangamon- Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-Cumberland-Clark- Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 1152 AM CDT Mon Apr 20 2026 This Hazardous Weather Outlook is for central Illinois, east central Illinois and southeast Illinois. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is chance of thunderstorms Tuesday night. The severe threat appears low at this time. Additional storms are possible Thursday night into Friday. It is too early to determine the severe risk at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated through tonight. $$ Erwin