Hazardous Weather Outlook
Issued by NWS Quad Cities, IA IL
Issued by NWS Quad Cities, IA IL
117 FLUS43 KDVN 172004 HWODVN Hazardous Weather Outlook National Weather Service Quad Cities IA IL 304 PM CDT Sun Aug 17 2025 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-182015- Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson- Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll- Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson- Warren-Hancock-McDonough-Scotland-Clark- 304 PM CDT Sun Aug 17 2025 This Hazardous Weather Outlook is for portions of north central Illinois...northwest Illinois...west central Illinois...east central Iowa...northeast Iowa...southeast Iowa and northeast Missouri. .DAY ONE...THIS AFTERNOON AND TONIGHT Hot and humid conditions will continue today. A Heat Advisory has been issued for this afternoon and early evening for locations generally along and south of Highway 30. Chances of thunderstorms will increase once again this evening into tonight, some of which could become strong to severe. The Storm Prediction Center has a Marginal Risk (level 1 of 5) of severe storms outlooked for locations west of an Iowa City to Dubuque line. Damaging winds are the main threats, with the potential of torrential downpours that could lead to localized flash flooding. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Hot and humid conditions are likely once again Monday, with additional heat headlines likely needed for areas along and south of Interstate 80. Chances of thunderstorms will continue through Tuesday, with some strong to severe storms possible at times. Damaging winds remain the primary threat, along with torrential downpours that could result in localized flash flooding. A Marginal Risk for severe storms remains over most of the area Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible this evening through tonight. Reports of severe weather would be appreciated along with any reports of rainfall over one inch. $$