573 WHUS51 KBOX 042114 SMWBOX ANZ232-042145- /O.NEW.KBOX.MA.W.0043.180804T2114Z-180804T2145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Boston/Norton MA 514 PM EDT SAT AUG 4 2018 The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Nantucket Sound... * Until 545 PM EDT. * At 513 PM EDT, a severe thunderstorm capable of producing waterspouts was located over Nantucket Sound, north of West Chop, moving northeast at 25 knots. HAZARD...Waterspouts and wind gusts to 40 knots. 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. * The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 4148 7058 4150 7060 4157 7052 4157 7049 4159 7049 4162 7045 4157 7030 TIME...MOT...LOC 2113Z 237DEG 24KT 4150 7057 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...40KTS $$ JWD