Summit, WI Warnings, Watches and Advisories
NWS Active Alerts for WI - Map View
Beach Hazards Statement
Carlton/South St. Louis; Douglas
Beach Hazards Statement issued September 21 at 7:29PM CDT until September 21 at 10:00PM CDT by NWS Duluth MN
* WHAT...Dangerous swimming conditions are expected along the Lake Superior shoreline due to high wave action and strong rip currents. * WHERE...Minnesota Park Point and Wisconsin Point Beaches. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Life-threatening waves and rip currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls.
Moderate
Likely
Expected
September 21st, 2026 07:29:00 pm CDT
September 21st, 2026 07:29:00 pm CDT
September 21st, 2026 10:00:00 pm CDT
Beach Hazards Statement
Sheboygan; Ozaukee; Milwaukee; Racine; Kenosha
Beach Hazards Statement issued September 21 at 6:36PM CDT until September 23 at 7:00PM CDT by NWS Milwaukee/Sullivan WI
* WHAT...Life threatening waves of 4 to 6 feet and dangerous currents are expected. * WHERE...Sheboygan, Ozaukee, Milwaukee, Racine and Kenosha Counties. * WHEN...Through Wednesday evening. * IMPACTS...Dangerous swimming conditions are expected due to high waves and onshore winds.
Moderate
Likely
Expected
September 21st, 2026 06:36:00 pm CDT
September 21st, 2026 06:36:00 pm CDT
September 22nd, 2026 02:45:00 am CDT
Beach Hazards Statement
Door; Kewaunee; Manitowoc
Beach Hazards Statement issued September 21 at 6:02PM CDT until September 22 at 7:00PM CDT by NWS Green Bay WI
* WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Door, Kewaunee and Manitowoc Counties. * WHEN...Through Tuesday evening. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Rock Island State Beach, Baileys Harbor beaches and Whitefish Dunes Beach in Door County. Cresent Beach and City of Kewaunee Beach in Kewaunee County. Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County.
Moderate
Likely
Expected
September 21st, 2026 06:02:00 pm CDT
September 21st, 2026 06:02:00 pm CDT
September 22nd, 2026 05:00:00 am CDT
Flood Warning
Racine, WI
Flood Warning issued September 21 at 3:43PM CDT until September 22 at 10:36AM CDT by NWS Milwaukee/Sullivan WI
...The Flood Warning is extended for the following rivers in Wisconsin... Root River Canal At Raymond affecting Racine County. ...The Flood Warning continues for the following rivers in Illinois...Wisconsin... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Root River Canal at Raymond. * WHEN...Until Tuesday morning. * IMPACTS...At 9.0 feet, Water floods Koerber Park on 6 Mile Road. Flooding of rural land and agricultural land. * ADDITIONAL DETAILS... - At 3:00 PM CDT Monday the stage was 9.5 feet. - Bankfull stage is 7.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Monday was 9.6 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 2.9 feet Monday, September 28. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 9.5 feet on 04/16/1948. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 21st, 2026 03:43:00 pm CDT
September 21st, 2026 03:43:00 pm CDT
September 22nd, 2026 03:45:00 am CDT
Flood Warning
Lake, IL; Kenosha, WI
Flood Warning issued September 21 at 3:43PM CDT until September 25 at 11:00AM CDT by NWS Milwaukee/Sullivan WI
...The Flood Warning is extended for the following rivers in Wisconsin... Root River Canal At Raymond affecting Racine County. ...The Flood Warning continues for the following rivers in Illinois...Wisconsin... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until Friday morning. * IMPACTS...At 12.0 feet, Water is up to the first floor levels of some homes in the Town of Wheatland, Silver Lake and Village of Salem Lakes area along Riverside Drive and Shorewood Drive. Hoosier Creek Rd floods. * ADDITIONAL DETAILS... - At 3:00 PM CDT Monday the stage was 12.2 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Monday was 12.2 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet this evening. It will then fall below flood stage early Friday morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 12.2 feet on 06/13/2001. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 21st, 2026 03:43:00 pm CDT
September 21st, 2026 03:43:00 pm CDT
September 22nd, 2026 03:45:00 am CDT
Frost Advisory
Koochiching; North St. Louis; Northern Cook/Northern Lake; North Itasca; Central St. Louis; North Cass; South Itasca; Crow Wing; Northern Aitkin; South Aitkin; Carlton/South St. Louis; Pine; Douglas; Bayfield; Ashland; Iron; Burnett; Washburn; Sawyer; Price
Frost Advisory issued September 21 at 12:59PM CDT until September 22 at 8:00AM CDT by NWS Duluth MN
* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In Minnesota, Crow Wing, Northern Aitkin, Pine, South Aitkin, Koochiching, North Cass, North Itasca, South Itasca, Carlton and South St. Louis, Central St. Louis, North St. Louis, and Northern Cook and Lake Counties. In Wisconsin, Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, and Washburn Counties. * WHEN...From midnight tonight to 8 AM CDT Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Advisory is for inland areas away from Lake Superior.
Minor
Likely
Expected
September 21st, 2026 12:59:00 pm CDT
September 21st, 2026 12:59:00 pm CDT
September 22nd, 2026 01:00:00 am CDT
Frost Advisory
Vilas; Oneida; Forest; Florence; Lincoln
Frost Advisory issued September 21 at 12:37PM CDT until September 22 at 7:00AM CDT by NWS Green Bay WI
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Lincoln, Oneida, Vilas, Florence, and Forest Counties. * WHEN...From midnight tonight to 7 AM CDT Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Minor
Likely
Expected
September 21st, 2026 12:37:00 pm CDT
September 21st, 2026 12:37:00 pm CDT
September 21st, 2026 08:45:00 pm CDT
SAFETY and DATA MESSAGE
When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.
Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Summit.
Use the Radar Maps link provided to understand the trajectory of a storm.
For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.