855
WHUS73 KDTX 300826
MWWDTX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
326 AM EST TUE DEC 30 2025
LHZ361>363-301600-
/O.CON.KDTX.GL.W.0033.000000T0000Z-251230T1600Z/
/O.CON.KDTX.UP.W.0006.000000T0000Z-251230T1600Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND
5NM OFF SHORE-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
326 AM EST TUE DEC 30 2025
..GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 11 AM EST
THIS MORNING...
* WHAT...DURING THE GALE WARNING, EXPECT SUSTAINED WINDS UP TO
35 KNOTS FROM THE NORTHWEST WITH GUSTS UP TO 45 KNOTS. THE
LARGEST SIGNIFICANT WAVES WILL BE 19 FEET WITH A POTENTIAL
MAXIMUM WAVE HEIGHT OF 27 FEET. DURING THE HEAVY FREEZING
SPRAY WARNING, HEAVY FREEZING SPRAY AT A RATE OF 2 CM PER HOUR
OR GREATER MAY RAPIDLY ACCUMULATE ON VESSELS.
* WHERE...LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE
ISLE LT BEYOND 5 NM OFF SHORE, LAKE HURON FROM PRESQUE ISLE
LIGHT TO STURGEON POINT MI BEYOND 5NM OFF SHORE AND LAKE HURON
FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE.
* WHEN...THE MAXIMUM WINDS AND WAVES ARE OCCURING THIS EVENING.
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF
STABILITY. STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA
OR CONDUCT MITIGATION.
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.
LCZ460-LEZ444-301200-
/O.CON.KDTX.GL.W.0033.000000T0000Z-251230T1200Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
326 AM EST TUE DEC 30 2025
..GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING
* WHAT...EXPECT SUSTAINED WINDS UP TO 30 KNOTS FROM THE
NORTHWEST WITH GUSTS UP TO 38 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 3 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5
FEET.
* WHERE...LAKE ST CLAIR.
* WHEN...THE MAXIMUM WINDS AND WAVES ARE OCCURING 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 HAZARDOUS CONDITIONS.
LHZ462>464-301600-
/O.CON.KDTX.GL.W.0033.000000T0000Z-251230T1600Z/
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
326 AM EST TUE DEC 30 2025
..GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING
* WHAT...EXPECT SUSTAINED WINDS UP TO 35 KNOTS FROM THE
NORTHWEST WITH GUSTS UP TO 45 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 21 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF
30 FEET.
* WHERE...LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM
OFF SHORE, LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND
5NM OFF SHORE AND LAKE HURON FROM PORT SANILAC TO PORT HURON
BEYOND 5NM OFF SHORE.
* WHEN...THE MAXIMUM WINDS AND WAVES ARE OCCURING 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 HAZARDOUS CONDITIONS.
LHZ421-441>443-301600-
/O.CON.KDTX.GL.W.0033.000000T0000Z-251230T1600Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-
326 AM EST TUE DEC 30 2025
..GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING
* WHAT...EXPECT SUSTAINED WINDS UP TO 35 KNOTS FROM THE
NORTHWEST WITH GUSTS UP TO 45 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 14 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF
20 FEET TOWARD THE OPEN WATERS.
* WHERE...OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO
INNER SAGINAW BAY, PORT AUSTIN TO HARBOR BEACH MI, HARBOR
BEACH TO PORT SANILAC MI AND PORT SANILAC TO PORT HURON MI.
* WHEN...THE MAXIMUM WINDS ARE OCCURING 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 HAZARDOUS CONDITIONS.
LHZ422-301600-
/O.CON.KDTX.GL.W.0033.000000T0000Z-251230T1600Z/
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
326 AM EST TUE DEC 30 2025
..GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING
* WHAT...EXPECT SUSTAINED WINDS UP TO 30 KNOTS FROM THE
NORTHWEST WITH GUSTS UP TO 40 KNOTS.
* WHERE...INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI.
* WHEN...THE MAXIMUM WINDS OCCURING THIS EVENING.
* IMPACTS...THE INNER BAY IS MOSTLY ICE COVERED.
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.
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