087  
WHUS73 KAPX 272001  
MWWAPX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE GAYLORD MI  
301 PM EST THU FEB 27 2020  
 
LHZ347-348-280415-  
/O.CON.KAPX.GL.W.0013.000000T0000Z-200228T1600Z/  
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-  
301 PM EST THU FEB 27 2020  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST FRIDAY
 
 
* WHAT...HIGHEST GUSTS UP TO 40 KT AND HIGHEST WAVES AROUND 11  
FEET.  
 
* WHERE...PRESQUE ISLE LIGHT TO STURGEON PT MI INCLUDING THUNDER  
BAY NATIONAL MARINE SANCTUARY AND 5NM EAST OF MACKINAC BRIDGE  
TO PRESQUE ISLE LIGHT MI INCLUDING BOIS BLANC ISLAND.  
 
* WHEN...UNTIL 11 AM EST FRIDAY.  
 
* 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 SEVERE CONDITIONS.  
 

 
 

 
 
LMZ323-342-344>346-280415-  
/O.CON.KAPX.GL.W.0013.000000T0000Z-200228T1600Z/  
GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO  
NORWOOD MI-  
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-  
301 PM EST THU FEB 27 2020  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EST FRIDAY
 
 
* WHAT...HIGHEST GUSTS UP TO 40 KT AND HIGHEST WAVES AROUND 9  
FEET.  
 
* WHERE...GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE  
LIGHT TO NORWOOD MI, NORWOOD MI TO 5NM WEST OF MACKINAC BRIDGE  
INCLUDING LITTLE TRAVERSE BAY, MANISTEE TO POINT BETSIE MI,  
SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI AND POINT  
BETSIE TO SLEEPING BEAR POINT MI.  
 
* WHEN...UNTIL 11 AM EST FRIDAY.  
 
* 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 SEVERE CONDITIONS.  
 

 
 

 
 
LHZ346-349-280415-  
/O.CON.KAPX.GL.W.0013.000000T0000Z-200228T1100Z/  
ST IGNACE TO FALSE DETOUR CHANNEL-STURGEON PT TO ALABASTER MI-  
301 PM EST THU FEB 27 2020  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EST FRIDAY
 
 
* WHAT...HIGHEST GUSTS UP TO 40 KT AND HIGHEST WAVES AROUND 6  
FEET.  
 
* WHERE...STURGEON PT TO ALABASTER MI AND ST IGNACE TO FALSE  
DETOUR CHANNEL.  
 
* WHEN...UNTIL 6 AM EST FRIDAY.  
 
* 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 SEVERE CONDITIONS.  
 

 
 

 
 
LHZ345-LMZ341-280415-  
/O.CON.KAPX.SC.Y.0021.000000T0000Z-200229T1000Z/  
STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING  
MACKINAC ISLAND-SEUL CHOIX POINT TO 5NM WEST OF MACKINAC BRIDGE-  
301 PM EST THU FEB 27 2020  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST  
SATURDAY...  
 
* WHAT...HIGHEST GUSTS UP TO 30 KT AND HIGHEST WAVES AROUND 3  
FEET.  
 
* WHERE...IN LAKE MICHIGAN, SEUL CHOIX POINT TO 5NM WEST OF  
MACKINAC BRIDGE. IN LAKE HURON, STRAITS OF MACKINAC WITHIN 5  
NM OF MACKINAC BRIDGE INCLUDING MACKINAC ISLAND.  
 
* WHEN...UNTIL 5 AM EST SATURDAY.  
 
* 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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