Gale Warning
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
450 PM CDT Tue May 12 2026
LMZ643-130600-
/O.EXT.KMKX.GL.W.0026.000000T0000Z-260513T0100Z/
/O.EXT.KMKX.SC.Y.0051.260513T0100Z-260513T2100Z/
Sheboygan to Port Washington WI-
450 PM CDT Tue May 12 2026
...GALE WARNING NOW IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO
4 PM CDT WEDNESDAY...
* WHAT...For the Gale Warning, south to southwest winds 15 to 25
kt with gusts up to 35 kt and waves 6 to 9 ft. For the Small
Craft Advisory, west to northwest winds 15 to 20 kt with gusts
up to 30 kt and waves 4 to 7 ft subsiding to 3 to 5 feet.
* WHERE...Nearshore Waters from Sheboygan to Port Washington.
* WHEN...For the Gale Warning, until 8 PM CDT this evening. For
the Small Craft Advisory, from 8 PM this evening to 4 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 severe conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
450 PM CDT Tue May 12 2026
LMZ364-366-563-565-567-669-671-868-870-872-130400-
/O.EXT.KMKX.GL.W.0026.000000T0000Z-260513T0400Z/
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
450 PM CDT Tue May 12 2026
...GALE WARNING NOW IN EFFECT UNTIL 11 PM CDT THIS EVENING...
* WHAT...Southwest winds 20 to 25 kt with gusts up to 35 kt and
waves 7 to 11 ft.
* WHERE...Central Third of the Open Waters of Lake Michigan,
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore
to mid lake, and Lake Michigan from Rock Island Passage to
Sturgeon Bay WI 5NM offshore to mid lake.
* WHEN...Until 11 PM CDT this evening.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
546 PM EDT Tue May 12 2026
LMZ844>849-130600-
/O.UPG.KGRR.SC.Y.0031.000000T0000Z-260513T1200Z/
/O.NEW.KGRR.GL.W.0010.260512T2146Z-260513T0400Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
546 PM EDT Tue May 12 2026
...GALE WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
* WHAT...Southwest winds 15 to 25 knots with gusts up to 40
knots and waves 2 to 5 feet.
* WHERE...St Joseph to Manistee.
* WHEN...Until midnight EDT tonight.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Gales develop closer to 8pm for areas near
South Haven. Gales may redevelop Wednesday morning.
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.
&&
$$
