Winter Storm Warnings
December 19 2025
* WHAT...For the Small Craft Advisory, northwest winds 15 to 25
kt and waves 4 to 7 ft. For the Heavy Freezing Spray Warning,
heavy freezing spray at a rate of 2 cm per hour or greater may
rapidly accumulate on vessels. For the Gale Watch, west winds
20 to 30 kt with gusts up to 40 kt and waves 6 to 9 ft
possible. For the Heavy Freezing Spray Watch, heavy freezing
spray at a rate of 2 cm per hour or greater possible, and may
rapidly accumulate on vessels.
* WHERE...The South Shore Waters of western Lake Superior.
* WHEN...For the Small Craft Advisory, until 10 AM CST this
morning. For the Heavy Freezing Spray Warning, until 7 AM CST
this morning. For the Gale Watch, from Saturday morning
through late Saturday night. For the Heavy Freezing Spray
Watch, from Saturday afternoon through late Saturday night.
* 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 can cause hazardous waves which could capsize or
damage vessels and reduce visibility.