586
WHUS73 KDTX 041948
MWWDTX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
348 PM EDT THU SEP 4 2025
LHZ361-050830-
/O.CON.KDTX.GL.W.0020.250905T0800Z-250906T0200Z/
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
348 PM EDT THU SEP 4 2025
..GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM EDT FRIDAY
* WHAT...EXPECT SUSTAINED WINDS UP TO 28 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 40 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 8 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF
11 FEET.
* WHERE...LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE
ISLE LT BEYOND 5 NM OFF SHORE.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 12 PM EDT FRIDAY
WITH THE LARGEST WAVES EXPECTED AROUND 2 PM EDT 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 HAZARDOUS CONDITIONS.
LHZ362-363-050830-
/O.CON.KDTX.GL.W.0020.250905T0800Z-250906T0200Z/
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-
348 PM EDT THU SEP 4 2025
..GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM EDT FRIDAY
* WHAT...EXPECT SUSTAINED WINDS UP TO 32 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 40 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 12 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF
17 FEET.
* WHERE...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 ARE EXPECTED AROUND 12 PM EDT FRIDAY
WITH THE LARGEST WAVES EXPECTED AROUND 2 PM EDT 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 HAZARDOUS CONDITIONS.
LHZ462>464-050830-
/O.CON.KDTX.GL.W.0020.250905T0800Z-250906T0200Z/
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-
348 PM EDT THU SEP 4 2025
..GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM EDT FRIDAY
* WHAT...EXPECT SUSTAINED WINDS UP TO 28 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 40 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 8 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF
11 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 ARE EXPECTED AROUND 1 PM EDT FRIDAY
WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT 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 HAZARDOUS CONDITIONS.
LHZ441>443-050830-
/O.CON.KDTX.GL.W.0020.250905T0800Z-250906T0200Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
348 PM EDT THU SEP 4 2025
..GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM EDT FRIDAY
* WHAT...EXPECT SUSTAINED WINDS UP TO 25 KNOTS FROM THE SOUTHWEST
WITH GUSTS UP TO 38 KNOTS. THE LARGEST SIGNIFICANT WAVES WILL BE
5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET.
* WHERE...PORT AUSTIN TO HARBOR BEACH MI, HARBOR BEACH TO PORT
SANILAC MI AND PORT SANILAC TO PORT HURON MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 1 PM EDT FRIDAY
WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT 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 HAZARDOUS CONDITIONS.
LHZ421-422-050830-
/O.CON.KDTX.GL.W.0020.250905T0800Z-250906T0200Z/
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
348 PM EDT THU SEP 4 2025
..GALE WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM EDT FRIDAY
* WHAT...EXPECT SUSTAINED WINDS UP TO 30 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 40 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 6 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 8
FEET ON THE OUTER BAY.
* WHERE...OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO
INNER SAGINAW BAY AND INNER SAGINAW BAY SW OF POINT AU GRES TO
BAY PORT MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 12 PM EDT FRIDAY
WITH THE LARGEST WAVES EXPECTED AROUND 2 PM EDT 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 HAZARDOUS CONDITIONS.
LCZ460-050830-
/O.NEW.KDTX.SC.Y.0066.250905T0800Z-250906T0200Z/
LAKE ST CLAIR-
348 PM EDT THU SEP 4 2025
..SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 10 PM EDT FRIDAY
* WHAT...EXPECT SUSTAINED WINDS UP TO 20 KNOTS FROM THE SOUTHWEST
WITH GUSTS UP TO 30 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 ARE EXPECTED AROUND 11 AM EDT FRIDAY
WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EDT 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.
LEZ444-050830-
/O.NEW.KDTX.SC.Y.0066.250905T0800Z-250906T0200Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
348 PM EDT THU SEP 4 2025
..SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 10 PM EDT FRIDAY
* WHAT...EXPECT SUSTAINED WINDS UP TO 20 KNOTS FROM THE SOUTHWEST
WITH GUSTS UP TO 30 KNOTS. THE LARGEST SIGNIFICANT WAVES WILL BE
4 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 6 FEET.
* WHERE...MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO
NORTH CAPE MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 11 AM EDT FRIDAY
WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EDT 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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