897
WHUS73 KAPX 171950
MWWAPX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GAYLORD MI
350 PM EDT FRI JUL 17 2026
LSZ321-180400-
/O.CAN.KAPX.MS.Y.0001.000000T0000Z-260718T0000Z/
/O.CON.KAPX.SC.Y.0059.260718T0900Z-260719T0900Z/
WHITEFISH BAY (U.S. PORTION)/WHITEFISH POINT TO POINT IROQUOIS MI-
350 PM EDT FRI JUL 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM SATURDAY TO
5 AM EDT SUNDAY...
..DENSE SMOKE ADVISORY IS CANCELLED
* WHAT...HIGHEST GUSTS UP TO 30 KTS FROM THE NORTHWEST AND
HIGHEST WAVES AROUND 5 FEET EXPECTED.
* WHERE...WHITEFISH BAY (U. S. PORTION)/WHITEFISH POINT TO POINT
IROQUOIS MI.
* WHEN...FROM 5 AM SATURDAY TO 5 AM EDT SUNDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LHZ347-348-180400-
/O.CAN.KAPX.MS.Y.0001.000000T0000Z-260718T0000Z/
/O.CON.KAPX.SC.Y.0059.260718T0900Z-260719T0900Z/
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-
350 PM EDT FRI JUL 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM SATURDAY TO
5 AM EDT SUNDAY...
..DENSE SMOKE ADVISORY IS CANCELLED
* WHAT...HIGHEST GUSTS UP TO 30 KTS FROM THE NORTHWEST AND
HIGHEST WAVES AROUND 6 FEET EXPECTED.
* WHERE...5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI
INCLUDING BOIS BLANC ISLAND AND PRESQUE ISLE LIGHT TO STURGEON
PT MI INCLUDING THUNDER BAY NATIONAL MARINE SANCTUARY.
* WHEN...FROM 5 AM SATURDAY TO 5 AM EDT SUNDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LHZ345-346-349-LSZ322-172100-
/O.CAN.KAPX.MS.Y.0001.000000T0000Z-260718T0000Z/
STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING
MACKINAC ISLAND-ST IGNACE TO FALSE DETOUR CHANNEL-
STURGEON PT TO ALABASTER MI-
ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING BAY-
350 PM EDT FRI JUL 17 2026
..DENSE SMOKE ADVISORY IS CANCELLED
LMZ323-341-342-344>346-180300-
/O.EXT.KAPX.MS.Y.0001.000000T0000Z-260718T0300Z/
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-
350 PM EDT FRI JUL 17 2026
...DENSE SMOKE ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS
EVENING...
* WHAT...DENSE SMOKE WILL REDUCE VISIBILITY TO 1 TO 2 NM.
* WHERE...PORTIONS OF LAKE MICHIGAN.
* WHEN...UNTIL 11 PM EDT THIS EVENING.
* 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.
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