634  
WHUS71 KBOX 052050  
MWWBOX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
450 PM EDT TUE MAY 5 2026  
 
ANZ230-236-060300-  
/O.CON.KBOX.GL.W.0016.000000T0000Z-260506T0300Z/  
BOSTON HARBOR-NARRAGANSETT BAY-  
450 PM EDT TUE MAY 5 2026  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING  
 
* WHAT...SOUTHWEST WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT AND  
WAVES 2 TO 4 FEET.  
 
* WHERE...IN MASSACHUSETTS COASTAL WATERS, BOSTON HARBOR. IN  
RHODE ISLAND COASTAL WATERS, NARRAGANSETT BAY.  
 
* WHEN...UNTIL 11 PM EDT THIS EVENING.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS 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.  
 
 
 
 
 
ANZ235-237-251-060300-  
/O.CON.KBOX.GL.W.0016.000000T0000Z-260506T0300Z/  
RHODE ISLAND SOUND-BLOCK ISLAND SOUND-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
450 PM EDT TUE MAY 5 2026  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING  
 
* WHAT...SOUTHWEST WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT AND  
SEAS 4 TO 7 FEET.  
 
* WHERE...IN RHODE ISLAND COASTAL WATERS, RHODE ISLAND SOUND AND  
BLOCK ISLAND SOUND. IN MASSACHUSETTS COASTAL WATERS,  
MASSACHUSETTS BAY AND IPSWICH BAY.  
 
* WHEN...UNTIL 11 PM EDT THIS EVENING.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS 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.  
 
 
 
 
 
ANZ231>234-060300-  
/O.CON.KBOX.GL.W.0016.000000T0000Z-260506T0300Z/  
CAPE COD BAY-NANTUCKET SOUND-VINEYARD SOUND-BUZZARDS BAY-  
450 PM EDT TUE MAY 5 2026  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING  
 
* WHAT...SOUTHWEST WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT AND  
SEAS 3 TO 5 FEET.  
 
* WHERE...CAPE COD BAY, NANTUCKET SOUND, VINEYARD SOUND AND  
BUZZARDS BAY.  
 
* WHEN...UNTIL 11 PM EDT THIS EVENING.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS 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.  
 
 
 
 
 
ANZ250-061000-  
/O.EXT.KBOX.SC.Y.0051.000000T0000Z-260507T0800Z/  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
450 PM EDT TUE MAY 5 2026  
   
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EDT THURSDAY  
 
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND SEAS  
4 TO 7 FEET.  
 
* WHERE...COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN  
BANK NATIONAL MARINE SANCTUARY.  
 
* WHEN...UNTIL 4 AM EDT THURSDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 
 
 
 
 
ANZ254>256-061000-  
/O.EXT.KBOX.SC.Y.0051.000000T0000Z-260507T1200Z/  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
450 PM EDT TUE MAY 5 2026  
   
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT THURSDAY  
 
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND  
SEAS 5 TO 8 FEET.  
 
* WHERE...IN MASSACHUSETTS COASTAL WATERS, COASTAL WATERS FROM  
PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA OUT 20 NM AND  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS  
VINEYARD AND NANTUCKET. IN RHODE ISLAND COASTAL WATERS,  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING  
OUT TO 20 NM SOUTH OF BLOCK ISLAND.  
 
* WHEN...UNTIL 8 AM EDT THURSDAY.  
 
* 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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