945
WHUS73 KAPX 270811
MWWAPX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GAYLORD MI
411 AM EDT MON APR 27 2026
LSZ322-271900-
/O.UPG.KAPX.SC.Y.0033.260427T1500Z-260428T2200Z/
/O.NEW.KAPX.GL.W.0012.260427T2100Z-260428T1800Z/
ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING BAY-
411 AM EDT MON APR 27 2026
...GALE WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 PM EDT
TUESDAY...
* WHAT...HIGHEST GUSTS UP TO 35 KTS FROM THE SOUTHEAST AND
HIGHEST WAVES AROUND 4 FEET EXPECTED.
* WHERE...ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING
BAY.
* WHEN...FROM 5 PM THIS AFTERNOON TO 2 PM EDT TUESDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS HIGHEST 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.
LSZ321-271900-
/O.UPG.KAPX.GL.A.0008.260427T2100Z-260428T1800Z/
/O.NEW.KAPX.GL.W.0012.260427T2100Z-260428T1800Z/
WHITEFISH BAY (U.S. PORTION)/WHITEFISH POINT TO POINT IROQUOIS MI-
411 AM EDT MON APR 27 2026
...GALE WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 PM EDT
TUESDAY...
* WHAT...HIGHEST GUSTS UP TO 35 KTS FROM THE SOUTHEAST AND
HIGHEST WAVES AROUND 8 FEET EXPECTED.
* WHERE...WHITEFISH BAY (U. S. PORTION)/WHITEFISH POINT TO POINT
IROQUOIS MI.
* WHEN...FROM 5 PM THIS AFTERNOON TO 2 PM EDT TUESDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS HIGHEST 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.
LMZ323-341-342-344>346-271900-
/O.CON.KAPX.SC.Y.0033.260427T1500Z-260428T2200Z/
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-
411 AM EDT MON APR 27 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 6 PM EDT TUESDAY...
* WHAT...HIGHEST GUSTS UP TO 30 KTS FROM THE SOUTH AND HIGHEST
WAVES AROUND 7 FEET EXPECTED.
* WHERE...PORTIONS OF LAKE MICHIGAN.
* WHEN...FROM 11 AM THIS MORNING TO 6 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.
LHZ345>349-271900-
/O.CON.KAPX.SC.Y.0033.260427T1500Z-260428T2200Z/
STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING
MACKINAC ISLAND-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-
411 AM EDT MON APR 27 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 6 PM EDT TUESDAY...
* WHAT...HIGHEST GUSTS UP TO 30 KTS FROM THE SOUTH AND HIGHEST
WAVES AROUND 10 FEET EXPECTED.
* WHERE...STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE
INCLUDING MACKINAC ISLAND, 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 11 AM THIS MORNING TO 6 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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