NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
   AMZ700-202045-  407 AM AST Thu Nov 20 2025    .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...    A long period north-northeasterly swell will continue to move across  the local waters through this evening. An upper-level short-wave  trough will help to promote afternoon thunderstorms across the Mona  Passage and Caribbean waters. The remnants of the frontal boundary  will slowly dissipate across the western Atlantic through Friday,  when a surface high is expected to build over the region. This high  pressure will promote moderate trade winds from the upcoming weekend  into early next week.    $$
   AMZ726-202045-  Coastal waters east of Puerto Rico, around Vieques, and around and  just north of Culebra and Saint John-  407 AM AST Thu Nov 20 2025    TODAY  East winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail:  East 3 feet at 5 seconds. Scattered showers with isolated  thunderstorms.  TONIGHT  Northeast winds 10 to 15 knots with gusts up to 20 knots.  Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 5 seconds.  Scattered showers after midnight.  FRIDAY  Northeast winds 10 to 15 knots with gusts up to 20 knots.  Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds.  Scattered showers.  FRIDAY NIGHT  Northeast winds 10 to 15 knots with gusts up to  20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at  5 seconds.  SATURDAY  Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave  Detail: East 2 feet at 5 seconds.  SATURDAY NIGHT  Northeast winds around 10 knots. Seas 2 to 3 feet.  Wave Detail: East 2 feet at 5 seconds.  SUNDAY  Northeast winds around 10 knots. Seas 2 to 3 feet.  SUNDAY NIGHT  Northeast winds 10 to 15 knots. Seas 2 to 3 feet.  MONDAY  East winds 10 to 15 knots. Seas 2 to 3 feet.  MONDAY NIGHT  Northeast winds 10 to 15 knots. Seas 2 to 3 feet.    Winds and seas higher in and near thunderstorms.    $$