FZUS71 KBOX 162204 MWSBOX Marine Weather Statement National Weather Service Boston/Norton MA 604 PM EDT Thu Jul 16 2026 ANZ250-251-280-162300- 604 PM EDT Thu Jul 16 2026 ...A STRONG THUNDERSTORM APPROACHING THE WATERS... The areas affected include... 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... At 603 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Sandy Bay, moving southeast at 20 knots. Locations impacted include... Eastern Point Ma, Jeffreys Ledge Buoy 44098, The Coastal Waters East Of Cape Ann, Sandy Bay, Ipswich Bay, and Thatcher Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Expect gusty winds to around 30 knots...briefly rough seas and lightning strikes. Consider heading for safe harbor until this storm passes. This a strong thunderstorm will produce winds to around 30 knots... and could pose a serious hazard for boaters. A Special Marine Warning may be issued when this storm reaches the nearshore waters. Boaters should consider heading for shore before the storm arrives. && LAT...LON 4287 7002 4239 6989 4258 7070 4261 7068 4259 7064 4262 7063 4264 7059 4265 7059 4266 7062 4269 7063 4266 7068 4263 7069 4266 7069 4270 7079 4272 7077 4280 7080 $$ FT