Coastal Waters Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
343 FZCA52 TJSJ 200131 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 931 PM AST Sat Apr 19 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-201430- 931 PM AST Sat Apr 19 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... A surface high pressure system over the western Atlantic will continue to push remnant showers of a past frontal boundary across the region through Sunday while a nearby mid to upper level trough and a surface trough produces favorable conditions for their development. This will lead to increased showers and thunderstorms across the local waters. Increasing northeasterly winds and a weak northerly swell will deteriorate marine conditions by this evening and into early next week. A Small Craft Advisory is in effect for the offshore Atlantic Waters. $$ AMZ711-201430- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 931 PM AST Sat Apr 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT... .REST OF TONIGHT...Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 8 seconds. Scattered showers with isolated thunderstorms late this evening, then isolated showers. Scattered showers with isolated thunderstorms late. .SUNDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 8 seconds. .SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: North 7 feet at 8 seconds. .MONDAY...North winds 10 to 15 knots with gusts up to 25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: North 7 feet at 9 seconds. .MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: North 6 feet at 9 seconds. Scattered showers. .TUESDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas around 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. .THURSDAY...East winds 5 to 10 knots. Seas around 4 feet, occasionally to 5 feet. .THURSDAY NIGHT...East winds around 10 knots. Seas around 4 feet, occasionally to 5 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ712-201430- Coastal Waters of Northern Puerto Rico out 10 NM- 931 PM AST Sat Apr 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. Isolated thunderstorms. Numerous showers late this evening, then scattered showers. .SUNDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 8 seconds. .SUNDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Gusts up to 30 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 8 seconds. Scattered showers in the evening. .MONDAY...North winds 10 to 15 knots with gusts up to 25 knots. Seas around 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds. .MONDAY NIGHT...North winds 10 to 15 knots, becoming northeast 5 to 10 knots after midnight. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds. Scattered showers in the evening, then numerous showers after midnight. .TUESDAY...Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots, becoming east 5 to 10 knots after midnight. Seas 5 to 6 feet, occasionally to 8 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 5 to 10 knots, diminishing to around 5 knots after midnight. Seas around 4 feet, occasionally to 5 feet. .THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas around 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 4 feet, occasionally to 5 feet. Winds and seas higher in and near thunderstorms. $$ AMZ716-201430- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 931 PM AST Sat Apr 19 2025 .REST OF TONIGHT...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 4 seconds and north 3 feet at 7 seconds. Scattered showers. Isolated thunderstorms late this evening. Isolated thunderstorms late. .SUNDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 8 seconds and east 1 foot at 4 seconds. Numerous showers, mainly in the morning. .SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. Scattered showers in the evening. .MONDAY...North winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. .MONDAY NIGHT...North winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 9 seconds. .TUESDAY...Northeast winds around 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 9 seconds. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers. .WEDNESDAY...East winds around 5 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds around 5 knots. Seas 3 to 4 feet, occasionally to 5 feet. .THURSDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ723-201430- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 931 PM AST Sat Apr 19 2025 .REST OF TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and northeast 2 feet at 8 seconds. Isolated thunderstorms. .SUNDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and northeast 3 feet at 8 seconds. Scattered showers. .SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 9 seconds and east 3 feet at 5 seconds. Scattered showers. .MONDAY...North winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: North 5 feet at 9 seconds. Scattered showers in the morning. .MONDAY NIGHT...North winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: North 5 feet at 9 seconds. .TUESDAY...Northeast winds around 10 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 9 seconds and northwest 1 foot at 4 seconds. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. .WEDNESDAY...East winds around 5 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. .THURSDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ726-201430- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 931 PM AST Sat Apr 19 2025 .REST OF TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and east 1 foot at 8 seconds. Scattered showers with isolated thunderstorms. .SUNDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and east 2 feet at 8 seconds. Numerous showers, mainly in the morning. .SUNDAY NIGHT...North winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 3 feet at 4 seconds and northeast 2 feet at 8 seconds. Scattered showers in the evening. .MONDAY...North winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 3 feet at 8 seconds and northeast 2 feet at 5 seconds. .MONDAY NIGHT...North winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 3 feet at 8 seconds and northeast 2 feet at 4 seconds. Scattered showers after midnight. .TUESDAY...Northeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 9 seconds and northeast 2 feet at 4 seconds. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers. .WEDNESDAY...East winds around 5 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ733-201430- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 931 PM AST Sat Apr 19 2025 .REST OF TONIGHT...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers with isolated thunderstorms. .SUNDAY...Northeast winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers. .SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the evening. .MONDAY...North winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds. .MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds. .TUESDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Northeast 2 feet at 5 seconds and northwest 2 feet at 6 seconds. .TUESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. .WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers in the morning. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers. Winds and seas higher in and near thunderstorms. $$ AMZ735-201430- Coastal Waters of Southern Puerto Rico out 10 NM- 931 PM AST Sat Apr 19 2025 .REST OF TONIGHT...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots late. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 6 seconds. Isolated thunderstorms. Isolated showers late this evening and early morning, then scattered showers late. .SUNDAY...Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Gusts up to 25 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the afternoon. .SUNDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers in the evening. .MONDAY...North winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 5 seconds. .MONDAY NIGHT...North winds 10 to 15 knots with gusts up to 25 knots, becoming northeast 5 to 10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Northeast 2 feet at 5 seconds. Scattered showers after midnight. .TUESDAY...Northeast winds around 5 knots, becoming east with gusts up to 20 knots in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds and east 1 foot at 8 seconds. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .WEDNESDAY...East winds around 5 knots. Seas around 2 feet. .WEDNESDAY NIGHT...East winds around 5 knots. Seas around 2 feet. .THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered showers in the morning. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ AMZ741-201430- Mona Passage Southward to 17N- 931 PM AST Sat Apr 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT... .REST OF TONIGHT...Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 7 seconds. Scattered showers with isolated thunderstorms late this evening and early morning, then isolated showers late. .SUNDAY...Northeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 7 seconds. .SUNDAY NIGHT...Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds. Scattered showers in the evening. .MONDAY...North winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North 6 feet at 8 seconds and east 2 feet at 6 seconds. .MONDAY NIGHT...North winds 15 to 20 knots, becoming northeast 10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds and east 2 feet at 6 seconds. Scattered showers. .TUESDAY...Northeast winds 5 to 10 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 9 seconds and east 2 feet at 6 seconds. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Scattered showers. .WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. .THURSDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Winds and seas higher in and near thunderstorms. $$ AMZ742-201430- Coastal Waters of Northwestern Puerto Rico out 10 NM- 931 PM AST Sat Apr 19 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds. Isolated showers late this evening, then scattered showers. Isolated showers late. .SUNDAY...Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds. .SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North 6 feet at 8 seconds. .MONDAY...North winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 8 seconds. .MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds. Scattered showers. .TUESDAY...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 9 seconds. Scattered showers in the morning. .TUESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. .WEDNESDAY...East winds 5 to 10 knots, becoming north in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Numerous showers in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers. .THURSDAY...East winds around 5 knots, becoming northeast in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. $$ AMZ745-201430- Coastal Waters of Southwestern Puerto Rico out 10 NM- 931 PM AST Sat Apr 19 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .REST OF TONIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 6 seconds. Isolated showers late this evening and early morning. .SUNDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 9 seconds and southeast 1 foot at 6 seconds. Scattered showers in the afternoon. .SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 8 seconds and southeast 1 foot at 5 seconds. .MONDAY...North winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 7 seconds. .MONDAY NIGHT...North winds 15 to 20 knots with gusts up to 25 knots, becoming northeast around 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at 8 seconds. Scattered showers. .TUESDAY...Northeast winds 5 to 10 knots, becoming north 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: North 3 feet at 8 seconds. Scattered showers in the afternoon. .TUESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. .WEDNESDAY...East winds around 5 knots, becoming south in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .THURSDAY...East winds around 5 knots. Seas 2 to 3 feet, occasionally to 4 feet. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. $$