574
WHUS73 KMKX 150147
MWWMKX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
847 PM CDT MON SEP 14 2026
LMZ643-644-151000-
/O.EXP.KMKX.SC.Y.0082.000000T0000Z-260915T0200Z/
/O.CON.KMKX.GL.W.0028.260915T0200Z-260915T1200Z/
SHEBOYGAN TO PORT WASHINGTON WI-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
847 PM CDT MON SEP 14 2026
..GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT TUESDAY
..SMALL CRAFT ADVISORY WILL EXPIRE AT 9 PM CDT THIS EVENING
* WHAT...SOUTH WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT AND WAVES
7 TO 11 FT EXPECTED.
* WHERE...NEARSHORE WATERS FROM SHEBOYGAN TO NORTH POINT
LIGHTHOUSE.
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 9 PM CDT THIS
EVENING. FOR THE GALE WARNING, FROM 9 PM THIS EVENING TO 7 AM
CDT TUESDAY.
* 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.
LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-151000-
/O.CON.KMKX.GL.W.0028.260915T0200Z-260915T1200Z/
LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO
MID-LINE OF LAKE.-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 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 NORTH POINT LIGHT TO WIND POINT WI 5NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WILMETTE HARBOR TO MICHIGAN CITY IN 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-
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM ST JOSEPH TO SOUTH HAVEN MI 5NM OFFSHORE TO
MID LAKE-
847 PM CDT MON SEP 14 2026
..GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT TUESDAY
* WHAT...SOUTHERLY WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND
WAVES 7 TO 12 FT EXPECTED.
* WHERE...SOUTHERN TWO THIRDS OF THE OPEN WATERS OF LAKE
MICHIGAN.
* WHEN...FROM 9 PM THIS EVENING TO 7 AM CDT TUESDAY.
* 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.
LMZ261-362-364-563-151000-
/O.CON.KMKX.GL.W.0028.260915T0200Z-260915T1800Z/
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-
847 PM CDT MON SEP 14 2026
..GALE WARNING REMAINS IN EFFECT UNTIL 1 PM CDT TUESDAY
* WHAT...SOUTHERLY WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND
WAVES 8 TO 13 FT EXPECTED.
* WHERE...NORTHERN THIRD OF THE OPEN WATERS OF LAKE MICHIGAN.
* WHEN...FROM 9 PM THIS EVENING TO 1 PM CDT TUESDAY.
* 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.
LMZ645-646-151000-
/O.CON.KMKX.SC.Y.0082.000000T0000Z-260915T1200Z/
NORTH POINT LIGHT TO WIND POINT WI-
WIND POINT WI TO WINTHROP HARBOR IL-
847 PM CDT MON SEP 14 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
TUESDAY...
* WHAT...SOUTHERLY WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
WAVES 5 TO 8 FT EXPECTED.
* WHERE...NEARSHORE WATERS FROM NORTH POINT LIGHTHOUSE TO
WINTHROP HARBOR IL.
* WHEN...UNTIL 7 AM CDT TUESDAY.
* 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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