Active Weather Alerts
Heavy Freezing Spray Warning
Issued: 2:21 AM Jan. 30, 2026 – National Weather Service
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 7 AM EST /6 AM CST/ FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST /MIDNIGHT CST/ SATURDAY... * WHAT...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. For the Small Craft Advisory, north winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 6 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...For the Heavy Freezing Spray Warning, until 7 AM EST /6 AM CST/ Friday. For the Small Craft Advisory, until 1 AM EST /midnight CST/ Saturday. * 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. Conditions will be hazardous to small craft. 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. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
Small Craft Advisory
Issued: 2:21 AM Jan. 30, 2026 – National Weather Service
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 7 AM EST /6 AM CST/ FRIDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST /MIDNIGHT CST/ SATURDAY... * WHAT...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. For the Small Craft Advisory, north winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 6 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...For the Heavy Freezing Spray Warning, until 7 AM EST /6 AM CST/ Friday. For the Small Craft Advisory, until 1 AM EST /midnight CST/ Saturday. * 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. Conditions will be hazardous to small craft. 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. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
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