Appleton, WI Warnings, Watches and Advisories

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 Appleton.

Use the Radar Maps link provided to understand the trajectory of a storm.

Severe Thunderstorm Warning issued August 12 at 2:48AM CDT until August 12 at 3:30AM CDT by NWS Green Bay WI

SVRGRB The National Weather Service in Green Bay has issued a * Severe Thunderstorm Warning for... South Central Marinette County in northeastern Wisconsin... Central Oconto County in northeastern Wisconsin... * Until 330 AM CDT. * At 248 AM CDT, a severe thunderstorm was located 10 miles southeast of Bear Paw Scout Camp, or 26 miles northeast of Shawano, moving east at 25 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will be near... Pound around 315 AM CDT. Other locations impacted by the severe thunderstorm include Hickory Corners, White Potato Lake, Klondike, Coleman and Beaver.

Special Weather Statement issued August 12 at 2:48AM CDT by NWS Milwaukee/Sullivan WI

At 247 AM CDT, Doppler radar was tracking a strong thunderstorm near Montello, or 12 miles northeast of Portage, moving southeast at 30 mph. HAZARD...Penny size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vegetation is possible. Locations impacted include... Pardeeville, Randolph, Montello, Markesan, Rio, Cambria, Fox Lake, Packwaukee, Manchester, Wyocena, Mecan, Endeavor, Friesland, Kingston, Doylestown, Marquette, Astico, Glen Oak, and Dalton. This includes Interstate 39 between mile markers 98 and 101.

Severe Thunderstorm Warning issued August 12 at 2:39AM CDT until August 12 at 3:00AM CDT by NWS Green Bay WI

At 239 AM CDT, a severe thunderstorm was located 7 miles southeast of South Branch, or 14 miles northeast of Shawano, moving east at 25 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe thunderstorm will be near... Legend Lake around 240 AM CDT. Gillett around 255 AM CDT. Other locations impacted by the severe thunderstorm include Hayes, Breed, Underhill and Suring.