717
WHUS73 KDTX 130736
MWWDTX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
336 AM EDT MON APR 13 2026
LHZ421-422-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
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-
336 AM EDT MON APR 13 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
* WHAT...EXPECT SUSTAINED WINDS UP TO 25 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 33 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7
FEET.
* 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 3 AM EDT MONDAY
WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EDT MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LHZ441-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
PORT AUSTIN TO HARBOR BEACH MI-
336 AM EDT MON APR 13 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
* WHAT...EXPECT SUSTAINED WINDS UP TO 21 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 29 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 4 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 5
FEET.
* WHERE...PORT AUSTIN TO HARBOR BEACH MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 3 AM EDT MONDAY
WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EDT MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LHZ442-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
HARBOR BEACH TO PORT SANILAC MI-
336 AM EDT MON APR 13 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
* WHAT...EXPECT SUSTAINED WINDS UP TO 21 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 29 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 3 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 4
FEET.
* WHERE...HARBOR BEACH TO PORT SANILAC MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 3 AM EDT MONDAY
WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EDT MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LHZ443-131400-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1400Z/
PORT SANILAC TO PORT HURON MI-
336 AM EDT MON APR 13 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
* WHAT...EXPECT SUSTAINED WINDS UP TO 21 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 27 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 3 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 4
FEET.
* WHERE...PORT SANILAC TO PORT HURON MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 4 AM EDT MONDAY
WITH THE LARGEST WAVES EXPECTED AROUND 5 AM EDT MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LCZ460-LEZ444-131600-
/O.CON.KDTX.SC.Y.0021.000000T0000Z-260413T1600Z/
LAKE ST CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
336 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY
* 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 4
FEET.
* WHERE...IN LAKE ST CLAIR, LAKE ST CLAIR. IN LAKE ERIE,
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE
MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 5 AM EDT MONDAY
WITH THE LARGEST WAVES EXPECTED AROUND 6 AM EDT MONDAY.
* 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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