165 FZCA72 TJSJ 211818 MWSSJU Marine Weather Statement National Weather Service San Juan PR 218 PM AST Tue Oct 21 2025 AMZ733-735-741-742-745-212015- 218 PM AST Tue Oct 21 2025 ...STRONG THUNDERSTORMS OVER THE CARIBBEAN WATERS AND MONA PASSAGE... The areas affected include... Caribbean Waters of Puerto Rico from 10 NM to 17N, including the Coastal Waters of Saint Croix... Coastal Waters OF Northwestern Puerto Rico out 10 NM... Coastal Waters OF Southwestern Puerto Rico out 10 NM... Coastal Waters of Southern Puerto Rico out 10 NM... Mona Passage Southward to 17N... At 214 PM AST, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located mainly over portions of the Caribbean Waters, Mona Passage, and coastal western waters of Puerto Rico moving west at 15 to 25 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, lightning strikes, and heavy downpours. Boaters should seek safe harbor immediately until this storm passes. Report severe weather to the Coast Guard or nearest law enforcement agency. They will relay your report to the National Weather Service forecast office. && LAT...LON 1700 6800 1850 6799 1847 6720 1842 6715 1836 6727 1821 6715 1816 6719 1795 6720 1798 6701 1792 6693 1796 6682 1801 6677 1796 6662 1799 6646 1794 6639 1798 6633 1793 6621 1797 6607 1789 6589 1700 6587 $$ YZR  478 WHUS53 KDTX 211824 SMWDTX LHZ421-422-212000- /O.NEW.KDTX.MA.W.0075.251021T1824Z-251021T2000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Detroit/Pontiac MI 224 PM EDT Tue Oct 21 2025 The National Weather Service in Detroit/Pontiac has issued a * Special Marine Warning for... Inner Saginaw Bay SW of Point Au Gres to Bay Port MI... Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay... * Until 400 PM EDT. * At 224 PM EDT, a strong thunderstorm was located near Linwood, or near The Mouth Of The Saginaw River, moving northeast at 35 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * The strong thunderstorm will be near... Bay City Liberty Harbor and The Mouth Of The Saginaw River around 230 PM EDT. Gravelly Shoals around 305 PM EDT. Caseville around 320 PM EDT. Other locations impacted by the strong thunderstorm include Bay Port. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4391 8395 4392 8389 4399 8384 4398 8376 4400 8372 4399 8368 4402 8369 4405 8366 4405 8358 4419 8356 4418 8300 4405 8300 4397 8306 4395 8324 4369 8346 4367 8354 4355 8367 4365 8394 4372 8396 TIME...MOT...LOC 1824Z 232DEG 33KT 4366 8397 HAIL...<.75IN WIND...>34KTS $$ TF  817 FZUS73 KDTX 211840 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 240 PM EDT Tue Oct 21 2025 LHZ421-422-212000- /O.CON.KDTX.MA.W.0075.000000T0000Z-251021T2000Z/ 240 PM EDT Tue Oct 21 2025 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 400 PM EDT... For the following areas... Inner Saginaw Bay SW of Point Au Gres to Bay Port MI... Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay... At 240 PM EDT, a strong thunderstorm was located near Bay City Liberty Harbor, moving northeast at 35 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. The strong thunderstorm will be near... Gravelly Shoals around 300 PM EDT. Other locations impacted by the strong thunderstorm include Bay Port. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4391 8395 4392 8389 4399 8384 4398 8376 4400 8372 4399 8368 4402 8369 4405 8366 4405 8358 4419 8356 4418 8300 4405 8300 4397 8306 4395 8324 4369 8346 4367 8354 4355 8367 4365 8394 4372 8396 TIME...MOT...LOC 1840Z 228DEG 33KT 4378 8376 HAIL...<.75IN WIND...>34KTS $$ TF  936 FZUS73 KDTX 211858 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 258 PM EDT Tue Oct 21 2025 LHZ421-422-212000- /O.CON.KDTX.MA.W.0075.000000T0000Z-251021T2000Z/ 258 PM EDT Tue Oct 21 2025 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 400 PM EDT... For the following areas... Inner Saginaw Bay SW of Point Au Gres to Bay Port MI... Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay... At 258 PM EDT, a strong thunderstorm was located near Gravelly Shoals, moving northeast at 35 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. The strong thunderstorm will be near... Gravelly Shoals around 305 PM EDT. Other locations impacted by the strong thunderstorm include Bay Port. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4391 8395 4392 8389 4399 8384 4398 8376 4400 8372 4399 8368 4402 8369 4405 8366 4405 8358 4419 8356 4418 8300 4405 8300 4397 8306 4395 8324 4369 8346 4367 8354 4355 8367 4365 8394 4372 8396 TIME...MOT...LOC 1858Z 228DEG 33KT 4389 8358 HAIL...<.75IN WIND...>34KTS $$ TF