Watches, Warnings & Advisories



2 products found for Marine Zone: LSZ263

Heavy Freezing Spray Warning

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
348 AM EST Wed Jan 21 2026

LSZ263-212100-
/O.EXP.KMQT.UP.W.0003.000000T0000Z-260121T0900Z/
/O.NEW.KMQT.UP.W.0004.260122T0000Z-260124T0000Z/
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
348 AM EST Wed Jan 21 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM THIS EVENING
TO 7 PM EST FRIDAY...
...HEAVY FREEZING SPRAY WARNING WILL EXPIRE AT 4 AM EST EARLY
THIS MORNING...

* WHAT...Heavy freezing spray at a rate of 2 cm per hour or
  greater expected, and may rapidly accumulate on vessels.

* WHERE...Lake Superior from Saxon Harbor WI to Upper Entrance
  to Portage Canal MI 5NM off shore to the US/Canadian border
  including Isle Royale National Park.

* WHEN...From 7 PM this evening to 7 PM EST Friday.

* 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.

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.

&&

$$



Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Marquette MI
345 AM EST Wed Jan 21 2026

LSZ162-240>251-263>267-220845-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
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-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
345 AM EST Wed Jan 21 2026 /245 AM CST Wed Jan 21 2026/

This Hazardous Weather Outlook is for portions of Central Lake
Superior...Eastern Lake Superior and Western Lake Superior.

.DAY ONE...Today and Tonight

Heavy Freezing Spray returns tonight. See the latest Open Lake
Forecast and Marine Weather Message for additional details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Northwest gales to 35 knots are expected Thursday into Friday. In
addition, expect heavy freezing spray to continue through at
least Saturday morning. See the latest Open Lake Forecast and
Marine Discussion for additional details.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

$$