410
WHUS73 KMKX 151941
MWWMKX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
241 PM CDT FRI MAY 15 2026
LMZ261-362-364-563-160345-
/O.CON.KMKX.GL.W.0027.000000T0000Z-260516T0600Z/
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH
FOX ISLAND 5NM OFFSHORE-
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI 5NM
OFFSHORE TO MID LAKE-
241 PM CDT FRI MAY 15 2026
..GALE WARNING REMAINS IN EFFECT UNTIL 1 AM CDT SATURDAY
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 35 KT AND
WAVES 6 TO 9 FT.
* WHERE...NORTHERN THIRD OF THE OPEN WATERS OF LAKE MICHIGAN.
* WHEN...UNTIL 1 AM CDT SATURDAY.
* 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.
LMZ643>646-160345-
/O.CON.KMKX.SC.Y.0053.000000T0000Z-260516T0900Z/
SHEBOYGAN TO PORT WASHINGTON WI-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
NORTH POINT LIGHT TO WIND POINT WI-
WIND POINT WI TO WINTHROP HARBOR IL-
241 PM CDT FRI MAY 15 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT
SATURDAY...
* WHAT...SOUTH WINDS 10 TO 20 KT WITH GUSTS UP TO 30 KT AND
WAVES 4 TO 6 FT.
* WHERE...NEARSHORE WATERS FROM SHEBOYGAN TO WINTHROP HARBOR IL.
* WHEN...UNTIL 4 AM CDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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