Hazardous Weather Outlook
Issued by NWS Central Illinois
Issued by NWS Central Illinois
363 FLUS43 KILX 172018 HWOILX Hazardous Weather Outlook National Weather Service Lincoln IL 318 PM CDT Tue Jun 17 2025 ILZ027>031-036>038-040>043-047>053-182030- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler- Mason-Logan-De Witt-Cass-Menard-Scott-Morgan-Sangamon-Christian- Macon- 318 PM CDT Tue Jun 17 2025 This Hazardous Weather Outlook is for central Illinois and west central Illinois. .DAY ONE...Tonight. Scattered thunderstorms are forecast this evening through tonight. The strongest of these storms may produce a localized damaging wind gust, while any storm will carry a risk for heavy rain leading to flooding of urban or low lying areas. The most likely time for severe storms is from 5 pm to midnight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Additional thunderstorms will develop along a cold front late Wednesday morning into the afternoon. Damaging wind gusts, large hail, and even a tornado are each risks, with the highest chances for severe weather east of the IL River. A period of hot and humid weather is expected by the end of the week. High temperatures in the lower to mid 90s will create heat index values in excess of 100 degrees each afternoon Saturday through Monday. This will increase the risk for heat related illness for those without effective cooling, especially for sensitive individuals. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed from 5 pm to midnight this evening. Expected storm motion is toward the northeast around 20 mph. $$ ILZ044>046-054>057-061>063-066>068-071>073-182030- Piatt-Champaign-Vermilion-Moultrie-Douglas-Coles-Edgar-Shelby- Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 318 PM CDT Tue Jun 17 2025 This Hazardous Weather Outlook is for central Illinois, east central Illinois and southeast Illinois. .DAY ONE...Tonight. There is a 50% chance of thunderstorms late tonight. These storms are unlikely to become severe (less than a 5% chance), however they may produce heavy rain leading to localized flooding in urban or low lying areas. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Thunderstorms will develop along a cold front Wednesday afternoon. Damaging wind gusts, large hail, and a few tornadoes are each risks. A period of hot and humid weather is expected by the end of the week. High temperatures in the lower to mid 90s will create heat index values in excess of 100 degrees each afternoon Saturday through Monday. This will increase the risk for related illness for those without effective cooling, especially for sensitive individuals. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. $$ Bumgardner