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Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
316 AM CDT Sat Aug 15 2026

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316 AM CDT Sat Aug 15 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...TODAY AND TONIGHT

Rounds of heavy rain producing storms will continue into early
Saturday morning. There will also be a low end severe threat in
storms south of Interstate 80, with isolated severe gusts being
the main concern. Very heavy rainfall and flash flooding will be
the primary concern, especially where storms move repeatedly
over the same area. Significant flash flooding is possible,
especially in urban areas and in counties that saw excessive
amounts of rain last night. Several area rivers will be on the
rise and have the potential to reach bankfull or even flood stage
over the weekend and into early next week.

Between the episodes of storms, high heat and humidity may
produce dangerous Heat Index readings near or over 100 degrees
Saturday afternoon south of Highway 34 in southeast Iowa.

More rounds of showers and storms are possible tonight into
Sunday morning. Heavy rainfall and lightning will be the primary
threats with any storm, with a low end severe threat for isolated
severe wind gusts as well.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

We may see some residual showers and storms Sunday morning,
largely posing a heavy rainfall and localized flash flood threat.

Tuesday night into Wednesday, a system will bring the chance for
strong to severe storms. The Storm Prediction Center has
highlighted much of our area in a Day 4 Slight Risk for severe
storms, or level 2 of 5 risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely through Saturday morning and then
again Saturday night. Reports of flooding would also be
appreciated.

$$

ERVIN/GUNKEL


Hazard Report Provided By forecast.weather.gov

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