Active Weather Alerts
Flood Watch
Issued: 8:09 AM Apr. 17, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH SATURDAY MORNING... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, east central, north central, and northeast Wisconsin, including the following areas, in central Wisconsin, Marathon, Portage, Waushara and Wood. In east central Wisconsin, Calumet, Manitowoc and Winnebago. In north central Wisconsin, Langlade. In northeast Wisconsin, Brown, Door, Florence, Forest, Kewaunee, Menominee, Northern Marinette County, Northern Oconto County, Outagamie, Shawano, Southern Marinette County, Southern Oconto County and Waupaca. * WHEN...From 1 PM CDT this afternoon through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Thunderstorms will bring widespread rainfall of 0.50 to 1 inches with locally higher amounts of 2 to 3 inches possible Friday afternoon through Friday night. With saturated ground, this rainfall may lead to additional flooding. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
Small Craft Advisory
Issued: 7:57 AM Apr. 17, 2026 – National Weather Service
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CDT SATURDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until 9 AM CDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 4 AM CDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
Dense Fog Advisory
Issued: 7:57 AM Apr. 17, 2026 – National Weather Service
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CDT SATURDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until 9 AM CDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 4 AM CDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
Dense Fog Advisory
Issued: 7:53 AM Apr. 17, 2026 – National Weather Service
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Calumet, Manitowoc, Brown, and Kewaunee Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...The worst visibilities will be near the Lake Michigan shoreline. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&
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