Hazard Report Provided By forecast.weather.gov
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 308 PM CDT Tue Jun 9 2026 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-101100- 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- 308 PM CDT Tue Jun 9 2026 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 through this evening with peak heat indices ranging from 95 to 105. A Heat Advisory remains in effect along and south of a line from Sigourney, Iowa to Aledo, Illinois. There is a slight chance of thunderstorms this evening. If a storm were to develop it could become severe. A somewhat better chance for thunderstorms is expected later tonight, mainly north of Interstate 80 in the late evening and overnight periods. Isolated severe storms with large hail and damaging winds will be possible. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY Numerous strong to severe storms will be seen Wednesday and Thursday across the area. The Storm Prediction Center has an Enhanced, level 3 out of 5, risk each day for much of the area. Two rounds of storms are possible on Wednesday. The first from 10 AM to 4 PM. Damaging winds and hail are possible with the first round. The more significant severe risk will be round two, roughly from 5 PM Wednesday to 2 AM Thursday. Initial storm development of discrete storms is possible in the local area capable of producing very large hail and strong tornadoes. It is also possible these discrete storms form further west and evolve into a line. This line would move through Wednesday evening into the early overnight with a threat for damaging winds, potentially over 70 mph, and spin-up tornadoes. On Thursday another one or two rounds of severe storms is possible with the threats of large hail, damaging winds and tornadoes. Timing could be as early as late morning, but is more likely in the afternoon before ending by early Thursday evening with the passage of a cold front. .SPOTTER INFORMATION STATEMENT... There is a low chance that spotter activation will be needed through tonight. But it will be likely for Wednesday and Thursday. $$ 12
Hazard Report Provided By forecast.weather.gov