MIDWEST — A potentially powerful storm system could bring multiple weather hazards across the Midwest early next week, with Monday shaping up as the most active day. The system is expected to spread a broad shield of heavy rainfall across the region, along with strong wind gusts near the surface low. Severe thunderstorms are also possible south of Interstate 80, though the exact track and intensity remain uncertain.
Deepening Low Near Minnesota and Wisconsin Drives Strong Wind Gusts Monday
Forecast guidance shows a strong area of low pressure deepening to around 992 millibars near the Minnesota, Wisconsin, and Iowa border region on Monday. Tightly packed pressure lines surrounding the low point to a strong pressure gradient across the Upper Midwest.
Strong wind gusts are most likely close to the center of the low, where the pressure gradient is tightest. Residents in Minnesota, Wisconsin, and northern Iowa should secure loose outdoor items and expect possible travel impacts for high-profile vehicles.
Expansive Shield of Heavy Rainfall Spreads Across Iowa, Illinois, and the Great Lakes
The system is forecast to produce a wide area of heavy rain stretching from the Dakotas and Nebraska through Iowa, Illinois, Wisconsin, and into Michigan. Temperatures across the region remain too warm for widespread snowfall, keeping this event mainly a rain producer.
Prolonged rainfall could lead to ponding on roadways, reduced visibility, and slick travel conditions during the Monday commute. Areas with poor drainage and low-lying spots will need to be monitored as rain totals add up through the day.
Severe Thunderstorm Potential Focused South of I-80 in Illinois, Iowa, and Missouri
The most concerning part of the setup is the potential for severe thunderstorms south of Interstate 80, including southern Iowa, central and southern Illinois, and northern Missouri. This threat comes during a time of year when severe weather is typically less common across the Midwest.
Whether storms turn severe will depend on how the atmosphere evolves ahead of the system. The exact track and strength of the low remain uncertain, so forecast details for Monday are likely to shift in the coming days.
Monday Plans Across the Midwest Should Include a Weather Backup
Anyone with outdoor plans or long drives on Monday should check updated forecasts before heading out. Having a way to receive weather alerts will be important if severe storms develop.
Clearing gutters and storm drains ahead of time can help reduce water problems once heavy rain arrives across the region.
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