751
WHUS73 KMKX 012043
MWWMKX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
343 PM CDT WED APR 1 2026
LMZ261-362-364-563-020445-
/O.CON.KMKX.GL.W.0020.260402T1200Z-260403T0200Z/
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-
343 PM CDT WED APR 1 2026
...GALE WARNING REMAINS IN EFFECT FROM 7 AM TO 9 PM CDT
THURSDAY...
* WHAT...EAST WINDS 15 TO 20 KT WITH GUSTS UP TO 40 KT AND WAVES 6
TO 9 FEET EXPECTED.
* WHERE...NORTHERN THIRD OF THE OPEN WATERS OF LAKE MICHIGAN.
* WHEN...FROM 7 AM TO 9 PM CDT THURSDAY.
* 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.
LMZ366-565-567-669-671-673-675-868-870-872-874-876-020445-
/O.CON.KMKX.GL.W.0020.260402T1200Z-260403T0600Z/
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 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-
343 PM CDT WED APR 1 2026
...GALE WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO 1 AM CDT
FRIDAY...
* WHAT...EAST WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT EXPECTED ON
THURSDAY, THEN SHIFTING TO SOUTHERLY GALES UP TO 35 KT FOR LATE
THURSDAY AFTERNOON AND NIGHT. WAVES 6 TO 10 FT EXPECTED.
* WHERE...CENTRAL THIRD OF THE OPEN WATERS OF LAKE MICHIGAN,
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 HOLLAND TO GRAND HAVEN MI 5NM OFFSHORE TO MID LAKE, AND
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5NM OFFSHORE TO
MID LAKE.
* WHEN...FROM 7 AM THURSDAY TO 1 AM CDT FRIDAY.
* 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>646-020445-
/O.CON.KMKX.SC.Y.0036.000000T0000Z-260403T0900Z/
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-
343 PM CDT WED APR 1 2026
..SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY
* WHAT...NORTHEAST WINDS 15 TO 25 KT BECOMING EASTERLY THIS
EVENING, AND THEN SOUTHERLY ON THURSDAY AFTERNOON AND NIGHT.
WAVES 5 TO 8 FEET.
* WHERE...NEARSHORE WATERS FROM SHEBOYGAN TO WINTHROP HARBOR IL.
* WHEN...UNTIL 4 AM CDT FRIDAY.
* 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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