464
WHUS73 KDTX 220827
MWWDTX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
327 AM EST THU JAN 22 2026
LHZ363-462>464-222100-
/O.CON.KDTX.UP.W.0003.260122T1100Z-260124T1100Z/
/O.CON.KDTX.GL.W.0005.260122T1500Z-260123T0900Z/
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF
SHORE-
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-
327 AM EST THU JAN 22 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 AM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM
EST FRIDAY...
* WHAT...DURING THE HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING
SPRAY AT A RATE OF 2 CM PER HOUR OR GREATER EXPECTED, AND MAY
RAPIDLY ACCUMULATE ON VESSELS. DURING THE GALE WARNING, EXPECT
SUSTAINED WINDS UP TO 29 KNOTS FROM THE WEST WITH GUSTS UP TO
36 KNOTS. THE LARGEST SIGNIFICANT WAVES WILL BE 9 FEET WITH A
POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET.
* WHERE...LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND
5NM OFF SHORE, 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 ARE EXPECTED AROUND 11 AM EST
THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EST
THURSDAY.
* 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.
LHZ361-362-222100-
/O.CON.KDTX.UP.W.0003.260122T1100Z-260124T1100Z/
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-
327 AM EST THU JAN 22 2026
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 AM EST
SATURDAY...
* WHAT...HEAVY FREEZING SPRAY AT A RATE OF 2 CM PER HOUR OR
GREATER EXPECTED, AND MAY RAPIDLY ACCUMULATE ON VESSELS.
* WHERE...LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE
ISLE LT BEYOND 5 NM OFF SHORE AND LAKE HURON FROM PRESQUE ISLE
LIGHT TO STURGEON POINT MI BEYOND 5NM OFF SHORE.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 10 PM EST
THURSDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 PM EST
THURSDAY.
* 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.
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.
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