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Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1053 AM EDT Tue Apr 1 2025

LSZ247>250-012300-
/O.CON.KMQT.SC.Y.0070.250402T0000Z-250402T0900Z/
/O.CON.KMQT.GL.W.0029.250402T0900Z-250402T2200Z/
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-
1053 AM EDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 5 AM EDT WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 6 PM EDT
WEDNESDAY...

* WHAT...For the Small Craft Advisory, southeast winds 15 to 25
  kt with gusts up to 30 kt and waves 2 to 5 ft expected. For
  the Gale Warning, southeast winds 20 to 30 kt with gusts up to
  40 kt and waves 6 to 9 ft expected.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI
  Including Keweenaw and Huron Bays, Huron Islands to Marquette
  MI, Marquette to Munising MI and Munising to Grand Marais MI.

* WHEN...For the Small Craft Advisory, from 8 PM this evening to
  5 AM EDT Wednesday. For the Gale Warning, from 5 AM to 6 PM
  EDT Wednesday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1053 AM EDT Tue Apr 1 2025

LSZ244>246-012300-
/O.CON.KMQT.SC.Y.0070.250402T0000Z-250402T0600Z/
/O.CON.KMQT.GL.W.0029.250402T0600Z-250403T0000Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
1053 AM EDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 2 AM EDT WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT
WEDNESDAY...

* WHAT...For the Small Craft Advisory, southeast winds 15 to 25
  kt with gusts up to 30 kt and waves 3 to 6 ft expected. For
  the Gale Warning, southeast winds 25 to 35 kt with gusts up to
  45 kt and waves 11 to 16 ft expected.

* WHERE...Eagle River to Manitou Island MI, Manitou Island to
  Point Isabelle MI and Point Isabelle to Lower Entrance of
  Portage Canal MI.

* WHEN...For the Small Craft Advisory, from 8 PM this evening to
  2 AM EDT Wednesday. For the Gale Warning, from 2 AM to 8 PM
  EDT Wednesday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1053 AM EDT Tue Apr 1 2025

LMZ221-248-250-012300-
/O.CON.KMQT.SC.Y.0070.250402T0100Z-250402T1000Z/
/O.CON.KMQT.GL.W.0029.250402T1000Z-250402T2100Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1053 AM EDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 6 AM EDT WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM TO 5 PM EDT
WEDNESDAY...

* WHAT...For the Small Craft Advisory, southeast winds 15 to 25
  kt with gusts up to 30 kt and waves 3 to 6 ft expected. For
  the Gale Warning, east winds 20 to 30 kt with gusts up to 40
  kt and waves 5 to 8 ft expected.

* WHERE...Green Bay North of line from Cedar River MI to Rock
  Island Passage, Seul Choix Point to Point Detour MI and 5NM
  East of a line from Fairport MI to Rock Island Passage.

* WHEN...For the Small Craft Advisory, from 9 PM this evening to
  6 AM EDT Wednesday. For the Gale Warning, from 6 AM to 5 PM
  EDT Wednesday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1053 AM EDT Tue Apr 1 2025

LSZ251-012300-
/O.CON.KMQT.SC.Y.0070.250402T0300Z-250402T0900Z/
/O.CON.KMQT.GL.W.0029.250402T0900Z-250403T0300Z/
Grand Marais to Whitefish Point MI-
1053 AM EDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 5 AM EDT WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 11 PM EDT
WEDNESDAY...

* WHAT...For the Small Craft Advisory, southeast winds 15 to 20
  kt with gusts up to 30 kt and waves 1 to 3 ft expected. For
  the Gale Warning, southeast winds 25 to 35 kt with gusts up to
  45 kt and waves 4 to 7 ft expected.

* WHERE...Grand Marais to Whitefish Point MI.

* WHEN...For the Small Craft Advisory, from 11 PM this evening
  to 5 AM EDT Wednesday. For the Gale Warning, from 5 AM to 11
  PM EDT Wednesday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1053 AM EDT Tue Apr 1 2025

LSZ243-012300-
/O.CON.KMQT.SC.Y.0070.250402T0300Z-250402T0900Z/
/O.CON.KMQT.GL.W.0029.250402T0900Z-250402T2200Z/
Upper Entrance of Portage Canal to Eagle River MI-
1053 AM EDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 5 AM EDT WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 6 PM EDT
WEDNESDAY...

* WHAT...For the Small Craft Advisory, southeast winds 15 to 20
  kt with gusts up to 30 kt and waves 1 to 3 ft expected. For
  the Gale Warning, southeast winds 20 to 30 kt with gusts up to
  40 kt and waves 3 to 6 ft expected.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI.

* WHEN...For the Small Craft Advisory, from 11 PM this evening
  to 5 AM EDT Wednesday. For the Gale Warning, from 5 AM to 6 PM
  EDT Wednesday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1053 AM EDT Tue Apr 1 2025

LSZ240>242-012300-
/O.CON.KMQT.SC.Y.0070.250402T0300Z-250402T2100Z/
Saxon Harbor WI to Black River MI-Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
1053 AM EDT Tue Apr 1 2025 /953 AM CDT Tue Apr 1 2025/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM EDT /10 PM
CDT/ THIS EVENING TO 5 PM EDT /4 PM CDT/ WEDNESDAY...

* WHAT...Southeast winds 15 to 25 kt with gusts up to 40 kt and
  waves 1 to 4 ft expected.

* WHERE...Saxon Harbor WI to Black River MI, Black River to
  Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal
  MI.

* WHEN...From 11 PM EDT /10 PM CDT/ this evening to 5 PM EDT /4
  PM CDT/ Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1004 AM CDT Tue Apr 1 2025

LMZ521-522-012315-
/O.CON.KGRB.SC.Y.0037.250402T0300Z-250402T2200Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
1004 AM CDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 5 PM CDT WEDNESDAY...

* WHAT...Southeast winds 15 to 25 kts with gusts up to 30 kts and
  waves 2 to 5 ft expected.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...From 10 PM this evening to 5 PM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1004 AM CDT Tue Apr 1 2025

LMZ541>543-012315-
/O.CON.KGRB.SC.Y.0037.250401T2200Z-250403T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1004 AM CDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 1 AM CDT THURSDAY...

* WHAT...Southeast winds 15 to 25 kts with gusts up to 35 kts and
  waves 6 to 11 ft expected.

* WHERE...Lake Michigan nearshore waters from Washington Island
  to Sheboygan.

* WHEN...From 5 PM this afternoon to 1 AM CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
953 AM CDT Tue Apr 1 2025

LSZ140>144-150-020300-
/O.CON.KDLH.SC.Y.0048.250401T2100Z-250402T0900Z/
/O.CON.KDLH.GL.W.0018.250402T0900Z-250403T0300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Outer Apostle Islands Beyond 5 NM from Mainland-
953 AM CDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 AM CDT WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM CDT
WEDNESDAY...

* WHAT...For the Small Craft Advisory, east winds 15 to 20 kt
  with gusts up to 30 kt and waves 3 to 6 ft expected. For the
  Gale Warning, east winds 15 to 25 kt with gusts up to 35 kt
  and waves 6 to 11 ft expected.

* WHERE...Portions of Lake Superior.

* WHEN...For the Small Craft Advisory, from 4 PM this afternoon
  to 4 AM CDT Wednesday. For the Gale Warning, from 4 AM to 10
  PM CDT Wednesday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
953 AM CDT Tue Apr 1 2025

LSZ121-145>148-020300-
/O.CON.KDLH.SC.Y.0048.250402T0000Z-250403T0300Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
953 AM CDT Tue Apr 1 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 10 PM CDT WEDNESDAY...

* WHAT...East winds 15 to 25 kt with gusts up to 30 kt and waves
  4 to 7 ft expected.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI, Duluth MN to
  Port Wing WI, Port Wing to Sand Island WI, Sand Island to
  Bayfield WI and Oak Point to Saxon Harbor WI.

* WHEN...From 7 PM this evening to 10 PM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$
U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE