Active Weather Alerts
Gale Warning
Issued: 3:34 AM Dec. 21, 2025 – National Weather Service
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 8 AM EST SUNDAY... * WHAT...For the Gale Warning, northwest winds 25 to 35 kt with gusts up to 40 kt and waves 7 to 10 ft occurring. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater occurring, and may rapidly accumulate on vessels. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays, Huron Islands to Marquette MI and Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore. * WHEN...For the Gale Warning, until 7 AM EST Sunday. For the Heavy Freezing Spray Warning, until 8 AM EST Sunday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. &&
Heavy Freezing Spray Warning
Issued: 3:34 AM Dec. 21, 2025 – National Weather Service
...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 8 AM EST SUNDAY... * WHAT...For the Gale Warning, northwest winds 25 to 35 kt with gusts up to 40 kt and waves 7 to 10 ft occurring. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater occurring, and may rapidly accumulate on vessels. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays, Huron Islands to Marquette MI and Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore. * WHEN...For the Gale Warning, until 7 AM EST Sunday. For the Heavy Freezing Spray Warning, until 8 AM EST Sunday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. &&
Winter Weather Advisory
Issued: 7:09 PM Dec. 20, 2025 – National Weather Service
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 AM EST SUNDAY... * WHAT...Lake effect snow expected. Additional snow accumulations between 2 and 4 inches with locally higher amounts of 4 to 6 inches in the higher terrain from around Mass City to Painesdale. Winds gusting as high as 50 mph, highest in the Keweenaw. Localized blizzard-like conditions are possible. * WHERE...Northern Houghton and Ontonagon Counties. * WHEN...Until 1 AM EST Sunday. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. &&
Local Radar