847
WHUS73 KDTX 190157
MWWDTX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
957 PM EDT MON MAY 18 2026
LHZ421-422-191415-
/O.EXP.KDTX.SC.Y.0031.000000T0000Z-260519T0200Z/
/O.NEW.KDTX.SC.Y.0032.260519T1400Z-260520T0200Z/
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-
957 PM EDT MON MAY 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 10 PM EDT
TUESDAY...
..SMALL CRAFT ADVISORY WILL EXPIRE AT 10 PM EDT THIS EVENING
* WHAT...EXPECT SUSTAINED WINDS UP TO 25 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 32 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 11 AM EDT TUESDAY
WITH THE LARGEST WAVES EXPECTED AROUND 1 PM EDT TUESDAY.
* 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>443-191415-
/O.EXP.KDTX.SC.Y.0031.000000T0000Z-260519T0200Z/
/O.NEW.KDTX.SC.Y.0032.260519T1400Z-260520T0200Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
957 PM EDT MON MAY 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 10 PM EDT
TUESDAY...
..SMALL CRAFT ADVISORY WILL EXPIRE AT 10 PM EDT THIS EVENING
* WHAT...EXPECT SUSTAINED WINDS UP TO 19 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, HARBOR BEACH TO PORT
SANILAC MI AND PORT SANILAC TO PORT HURON MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 2 PM EDT TUESDAY
WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT TUESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LCZ460-191415-
/O.EXP.KDTX.SC.Y.0031.000000T0000Z-260519T0200Z/
/O.NEW.KDTX.SC.Y.0032.260519T1400Z-260520T0200Z/
LAKE ST CLAIR-
957 PM EDT MON MAY 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 10 PM EDT
TUESDAY...
..SMALL CRAFT ADVISORY WILL EXPIRE AT 10 PM EDT THIS EVENING
* WHAT...EXPECT SUSTAINED WINDS UP TO 21 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 28 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 3 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 4
FEET.
* WHERE...LAKE ST CLAIR.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 2 PM EDT TUESDAY
WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT TUESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LHZ361>363-462>464-191415-
/O.NEW.KDTX.MF.Y.0008.260519T0200Z-260519T2000Z/
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-
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-
957 PM EDT MON MAY 18 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT TUESDAY
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO LESS THAN 1 NM.
* WHERE...PORTIONS OF LAKE HURON.
* WHEN...UNTIL 4 PM EDT TUESDAY.
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE
YOUR RADAR AND COMPASS.
LEZ444-191415-
/O.NEW.KDTX.SC.Y.0032.260519T1400Z-260520T0200Z/
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
957 PM EDT MON MAY 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 10 PM EDT
TUESDAY...
* WHAT...EXPECT SUSTAINED WINDS UP TO 20 KNOTS FROM THE
SOUTHWEST WITH GUSTS UP TO 26 KNOTS. THE LARGEST SIGNIFICANT
WAVES WILL BE 3 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 4
FEET.
* WHERE...MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO
NORTH CAPE MI.
* WHEN...THE MAXIMUM WINDS ARE EXPECTED AROUND 2 PM EDT TUESDAY
WITH THE LARGEST WAVES EXPECTED AROUND 3 PM EDT TUESDAY.
* 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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