172
WHUS51 KBOX 100643
SMWBOX
ANZ256-273-100745-
/O.NEW.KBOX.MA.W.0021.250710T0643Z-250710T0745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
243 AM EDT THU JUL 10 2025
THE NATIONAL WEATHER SERVICE IN BOSTON/NORTON HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO
20 NM SOUTH OF BLOCK ISLAND...
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 40 NM
OFFSHORE...
* UNTIL 345 AM EDT.
* AT 243 AM EDT, A SEVERE THUNDERSTORM CAPABLE OF PRODUCING
WATERSPOUTS WAS LOCATED 23 NM SOUTHEAST OF BUOY 44017, MOVING
NORTHEAST AT 50 KNOTS.
HAZARD...WATERSPOUTS, WIND GUSTS TO 40 KNOTS, AND SMALL HAIL.
SOURCE...RADAR.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY
HIGHER WINDS AND SUDDENLY HIGHER WAVES.
* LOCATIONS IMPACTED INCLUDE...
THE COASTAL WATERS SOUTHEAST OF BLOCK ISLAND AND BUOY 44097
SOUTHEAST OF BLOCK ISLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.
LAT...LON 4094 7175 4109 7069 4061 7044 4059 7084
4047 7140
TIME...MOT...LOC 0643Z 239DEG 49KT 4051 7155
WATERSPOUT...POSSIBLE
HAIL...<.75IN
WIND...40KTS
KP
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