409
WHUS71 KBOX 241606
MWWBOX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1206 PM EDT THU SEP 24 2026
ANZ250-251-280-250515-
/O.CAN.KBOX.SC.Y.0088.000000T0000Z-260925T0600Z/
/O.CAN.KBOX.GL.W.0022.260925T0600Z-260925T1500Z/
/O.UPG.KBOX.SR.A.0004.260925T1500Z-260927T0000Z/
/O.NEW.KBOX.SR.W.0005.260925T1500Z-260927T0000Z/
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-MASSACHUSETTS BAY AND IPSWICH BAY-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1206 PM EDT THU SEP 24 2026
...STORM WARNING IN EFFECT FROM 11 AM FRIDAY TO 8 PM EDT
SATURDAY...
* WHAT...NORTHEAST WINDS 25 TO 35 KT WITH GUSTS UP TO 60 KT AND
SEAS 19 TO 24 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, COASTAL WATERS EAST
OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL MARINE
SANCTUARY AND MASSACHUSETTS BAY AND IPSWICH BAY. IN ATLANTIC
COASTAL WATERS, OCEAN WATERS FROM THE MERRIMACK RIVER TO
PLYMOUTH FROM 40 TO 60 NM.
* WHEN...FROM 11 AM FRIDAY TO 8 PM EDT SATURDAY.
* IMPACTS...STORM FORCE WINDS AND HAZARDOUS SEAS WILL CAPSIZE OR
DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR SEVERE CONDITIONS.
ANZ255-256-282-283-250515-
/O.CAN.KBOX.GL.W.0021.000000T0000Z-260925T0600Z/
/O.UPG.KBOX.SR.A.0004.260925T0600Z-260927T0000Z/
/O.NEW.KBOX.SR.W.0005.260925T0600Z-260927T0000Z/
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-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1206 PM EDT THU SEP 24 2026
...STORM WARNING IN EFFECT FROM 2 AM FRIDAY TO 8 PM EDT
SATURDAY...
* WHAT...NORTHEAST WINDS 30 TO 40 KT WITH GUSTS UP TO 60 KT AND
SEAS 21 TO 26 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, 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. IN ATLANTIC COASTAL WATERS, OCEAN WATERS FROM
MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM AND OCEAN
WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM.
* WHEN...FROM 2 AM FRIDAY TO 8 PM EDT SATURDAY.
* IMPACTS...STORM FORCE WINDS AND HAZARDOUS SEAS WILL CAPSIZE OR
DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR SEVERE CONDITIONS.
ANZ232>235-237-250515-
/O.CAN.KBOX.GL.W.0021.000000T0000Z-260925T0600Z/
/O.UPG.KBOX.SR.A.0004.260925T0600Z-260927T0000Z/
/O.NEW.KBOX.SR.W.0005.260925T0600Z-260927T0000Z/
NANTUCKET SOUND-VINEYARD SOUND-BUZZARDS BAY-RHODE ISLAND SOUND-
BLOCK ISLAND SOUND-
1206 PM EDT THU SEP 24 2026
...STORM WARNING IN EFFECT FROM 2 AM FRIDAY TO 8 PM EDT
SATURDAY...
* WHAT...NORTHEAST WINDS 25 TO 35 KT WITH GUSTS UP TO 55 KT AND
SEAS 7 TO 10 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, NANTUCKET SOUND,
VINEYARD SOUND AND BUZZARDS BAY. IN RHODE ISLAND COASTAL
WATERS, RHODE ISLAND SOUND AND BLOCK ISLAND SOUND.
* WHEN...FROM 2 AM FRIDAY TO 8 PM EDT SATURDAY.
* IMPACTS...STORM FORCE WINDS AND HAZARDOUS SEAS WILL CAPSIZE OR
DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR SEVERE CONDITIONS.
ANZ254-281-250515-
/O.CAN.KBOX.GL.W.0021.000000T0000Z-260925T1200Z/
/O.UPG.KBOX.SR.A.0004.260925T1200Z-260927T0000Z/
/O.NEW.KBOX.SR.W.0005.260925T1200Z-260927T0000Z/
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1206 PM EDT THU SEP 24 2026
...STORM WARNING IN EFFECT FROM 8 AM FRIDAY TO 8 PM EDT
SATURDAY...
* WHAT...NORTHEAST WINDS 25 TO 35 KT WITH GUSTS UP TO 60 KT AND
SEAS 20 TO 25 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, COASTAL WATERS FROM
PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA OUT 20 NM. IN
ATLANTIC COASTAL WATERS, OCEAN WATERS FROM PROVINCETOWN TO
NANTUCKET FROM 20 TO 60 NM.
* WHEN...FROM 8 AM FRIDAY TO 8 PM EDT SATURDAY.
* IMPACTS...STORM FORCE WINDS AND HAZARDOUS SEAS WILL CAPSIZE OR
DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR SEVERE CONDITIONS.
ANZ231-250515-
/O.CAN.KBOX.GL.W.0021.000000T0000Z-260925T1200Z/
/O.UPG.KBOX.SR.A.0004.260925T1200Z-260927T0000Z/
/O.NEW.KBOX.SR.W.0005.260925T1200Z-260927T0000Z/
CAPE COD BAY-
1206 PM EDT THU SEP 24 2026
...STORM WARNING IN EFFECT FROM 8 AM FRIDAY TO 8 PM EDT
SATURDAY...
* WHAT...NORTHEAST WINDS 20 TO 30 KT WITH GUSTS UP TO 55 KT AND
SEAS 7 TO 12 FEET EXPECTED.
* WHERE...CAPE COD BAY.
* WHEN...FROM 8 AM FRIDAY TO 8 PM EDT SATURDAY.
* IMPACTS...STORM FORCE WINDS AND HAZARDOUS SEAS WILL CAPSIZE OR
DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR SEVERE CONDITIONS.
ANZ230-236-250515-
/O.CAN.KBOX.SC.Y.0088.000000T0000Z-260925T1200Z/
/O.UPG.KBOX.GL.W.0022.260925T1200Z-260927T0000Z/
/O.NEW.KBOX.SR.W.0005.260925T1800Z-260927T0000Z/
BOSTON HARBOR-NARRAGANSETT BAY-
1206 PM EDT THU SEP 24 2026
...STORM WARNING IN EFFECT FROM 2 PM FRIDAY TO 8 PM EDT
SATURDAY...
* WHAT...NORTH WINDS 20 TO 30 KT WITH GUSTS UP TO 50 KT AND
WAVES AROUND 3 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, BOSTON HARBOR. IN
RHODE ISLAND COASTAL WATERS, NARRAGANSETT BAY.
* WHEN...FROM 2 PM FRIDAY TO 8 PM EDT SATURDAY.
* IMPACTS...STORM FORCE WINDS AND HAZARDOUS WAVES WILL CAPSIZE
OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD REMAIN IN PORT, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR SEVERE CONDITIONS.
FRANK
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