751
WHUS73 KAPX 200519
MWWAPX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GAYLORD MI
119 AM EDT MON JUL 20 2026
LHZ345-LMZ323-341-342-344>346-201330-
/O.NEW.KAPX.SC.Y.0060.260720T1200Z-260721T1200Z/
STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING
MACKINAC ISLAND-
GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO
NORWOOD MI-SEUL CHOIX POINT TO 5NM WEST OF MACKINAC BRIDGE-
NORWOOD MI TO 5NM WEST OF MACKINAC BRIDGE INCLUDING LITTLE
TRAVERSE BAY-SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI-
POINT BETSIE TO SLEEPING BEAR POINT MI-
MANISTEE TO POINT BETSIE MI-
119 AM EDT MON JUL 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 AM
EDT TUESDAY...
* WHAT...HIGHEST GUSTS UP TO 30 KTS FROM THE SOUTHWEST AND
HIGHEST WAVES AROUND 8 FEET EXPECTED.
* WHERE...PORTIONS OF LAKE HURON AND LAKE MICHIGAN.
* WHEN...FROM 8 AM THIS MORNING TO 8 AM 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.
LHZ346>349-201330-
/O.NEW.KAPX.SC.Y.0060.260720T1800Z-260721T1200Z/
ST IGNACE TO FALSE DETOUR CHANNEL-
5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI INCLUDING
BOIS BLANC ISLAND-
PRESQUE ISLE LIGHT TO STURGEON PT MI INCLUDING THUNDER BAY
NATIONAL MARINE SANCTUARY-STURGEON PT TO ALABASTER MI-
119 AM EDT MON JUL 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 AM EDT TUESDAY...
* WHAT...HIGHEST GUSTS UP TO 30 KTS FROM THE SOUTHWEST AND
HIGHEST WAVES AROUND 6 FEET EXPECTED.
* WHERE...ST IGNACE TO FALSE DETOUR CHANNEL, 5NM EAST OF
MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI INCLUDING BOIS BLANC
ISLAND, PRESQUE ISLE LIGHT TO STURGEON PT MI INCLUDING THUNDER
BAY NATIONAL MARINE SANCTUARY AND STURGEON PT TO ALABASTER MI.
* WHEN...FROM 2 PM THIS AFTERNOON TO 8 AM 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.
LSZ321-322-201330-
/O.NEW.KAPX.SC.Y.0060.260720T1800Z-260721T1200Z/
WHITEFISH BAY (U.S. PORTION)/WHITEFISH POINT TO POINT IROQUOIS MI-
ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING BAY-
119 AM EDT MON JUL 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 AM EDT TUESDAY...
* WHAT...HIGHEST GUSTS UP TO 25 KTS FROM THE SOUTHWEST AND
HIGHEST WAVES AROUND 4 FEET EXPECTED.
* WHERE...WHITEFISH BAY (U. S. PORTION)/WHITEFISH POINT TO POINT
IROQUOIS MI AND ST. MARYS RIVER POINT IROQUOIS TO E.
POTAGANNISSING BAY.
* WHEN...FROM 2 PM THIS AFTERNOON TO 8 AM 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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