519
WHUS73 KMKX 192012
MWWMKX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
212 PM CST FRI DEC 19 2025
LMZ261-362-364-563-200415-
/O.EXP.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.UPG.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
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-
212 PM CST FRI DEC 19 2025
..GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY
..GALE WARNING HAS EXPIRED
* WHAT...SOUTHWEST WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND
WAVES 6 TO 11 FT EXPECTED.
* WHERE...NORTHERN THIRD OF THE OPEN WATERS OF LAKE MICHIGAN.
* WHEN...FROM 1 AM SATURDAY TO 3 AM CST SUNDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
* ADDITIONAL DETAILS...THE PREVIOUS GALE WARNING OVER THE NORTHERN
THIRD OF THE OPEN WATERS HAS EXPIRED.
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>646-200415-
/O.EXP.KMKX.SC.Y.0115.000000T0000Z-251219T2000Z/
/O.EXT.KMKX.SC.Y.0116.251220T0500Z-251220T2100Z/
/O.NEW.KMKX.GL.W.0040.251220T2100Z-251221T0900Z/
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-
212 PM CST FRI DEC 19 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 PM THIS EVENING TO
3 PM CST SATURDAY...
..GALE WARNING IN EFFECT FROM 3 PM SATURDAY TO 3 AM CST SUNDAY
..SMALL CRAFT ADVISORY HAS EXPIRED
* WHAT...FOR THE SMALL CRAFT ADVISORY, SOUTHWEST WINDS 15 TO 25
KT WITH GUSTS UP TO 35 KT AND WAVES 5 TO 8 FT EXPECTED. FOR
THE GALE WARNING, WEST WINDS 20 TO 30 KT WITH GUSTS UP TO 35
KT EXPECTED.
* WHERE...NEARSHORE WATERS FROM SHEBOYGAN TO WINTHROP HARBOR IL.
* WHEN...FOR THE SMALL CRAFT ADVISORY, FROM 11 PM THIS EVENING
TO 3 PM CST SATURDAY. FOR THE GALE WARNING, FROM 3 PM SATURDAY
TO 3 AM CST SUNDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
* ADDITIONAL DETAILS...THE SMALL CRAFT ADVISORY FROM EARLY THIS
AFTERNOON HAS EXPIRED.
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.
LMZ366-565-567-669-671-673-675-868-870-872-874-876-200415-
/O.UPG.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
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-
212 PM CST FRI DEC 19 2025
..GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY
* WHAT...WEST WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT AND WAVES
7 TO 12 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 1 AM SATURDAY TO 3 AM CST SUNDAY.
* 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.
LMZ080-777-779-878-200415-
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO
MID-LINE OF 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 ST JOSEPH TO SOUTH HAVEN MI 5NM OFFSHORE TO
MID LAKE-
212 PM CST FRI DEC 19 2025
..GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY
* WHAT...SOUTHWEST WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND
WAVES 7 TO 10 FT EXPECTED.
* WHERE...LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID-LINE OF 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 AND LAKE MICHIGAN FROM ST JOSEPH TO SOUTH HAVEN MI
5NM OFFSHORE TO MID LAKE.
* WHEN...FROM 1 AM SATURDAY TO 3 AM CST SUNDAY.
* 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.
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