150  
FZCA52 TJSJ 180747  
CWFSJU  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE SAN JUAN PR  
347 AM AST SAT OCT 18 2025  
 
PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS  
 
AMZ700-182030-  
347 AM AST SAT OCT 18 2025  
   
SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS
 
 
THE NEARBY STATIONARY BOUNDARY WILL CONTINUE TO PROMOTE SHOWER AND  
THUNDERSTORM ACTIVITY ACROSS THE REGIONAL WATERS AND PASSAGES  
THROUGH AT LEAST TODAY. A LONG PERIOD NORTHERLY SWELL, ASSOCIATED TO  
LOW PRESSURE SYSTEM OVER THE NORTHWESTERN ATLANTIC WATERS, IS  
EXPECTED TO REACH THE ATLANTIC WATERS AND LOCAL PASSAGES TODAY INTO  
SUNDAY THROUGH THE UPCOMING WORKWEEK. AS A RESULT, HAZARDOUS MARINE  
CONDITIONS ARE ANTICIPATED. PLEASE, CONTINUE TO MONITOR THE FORECAST  
UPDATES OVER THE COMING DAYS.  
 

 
 
AMZ711-182030-  
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST LATE. SEAS  
4 TO 5 FEET. WAVE DETAIL: NORTH 4 FEET AT 10 SECONDS AND EAST 2 FEET  
AT 9 SECONDS. SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 4 TO 6 FEET. WAVE  
DETAIL: NORTH 5 FEET AT 12 SECONDS AND SOUTHEAST 1 FOOT AT  
5 SECONDS. SCATTERED SHOWERS IN THE EVENING, THEN NUMEROUS SHOWERS  
AFTER MIDNIGHT.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS. SEAS  
5 TO 7 FEET, BUILDING TO 7 TO 8 FEET IN THE AFTERNOON. WAVE DETAIL:  
NORTH 6 FEET AT 12 SECONDS AND EAST 1 FOOT AT 8 SECONDS, BECOMING  
NORTH 8 FEET AT 14 SECONDS AND NORTH 3 FEET AT 11 SECONDS. SCATTERED  
SHOWERS IN THE MORNING.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 7 TO 9 FEET. WAVE DETAIL: NORTH 8 FEET AT 14 SECONDS AND EAST  
4 FEET AT 5 SECONDS.    
MONDAY
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS. SEAS  
7 TO 8 FEET. WAVE DETAIL: NORTH 7 FEET AT 13 SECONDS AND EAST 4 FEET  
AT 5 SECONDS.    
MONDAY NIGHT
 
EAST WINDS AROUND 15 KNOTS WITH GUSTS UP TO  
25 KNOTS. SEAS 7 TO 8 FEET. WAVE DETAIL: NORTH 6 FEET AT 12 SECONDS  
AND EAST 4 FEET AT 6 SECONDS.    
TUESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET.    
WEDNESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET.    
WEDNESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ712-182030-  
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTH WINDS AROUND 5 KNOTS, BECOMING EAST AROUND 5 KNOTS  
LATE THIS MORNING, THEN BECOMING NORTHEAST EARLY THIS AFTERNOON,  
BECOMING SOUTHEAST LATE. SEAS 4 TO 5 FEET. WAVE DETAIL: NORTH 4 FEET  
AT 10 SECONDS AND NORTHEAST 2 FEET AT 13 SECONDS. SCATTERED SHOWERS  
WITH ISOLATED THUNDERSTORMS EARLY THIS MORNING, THEN ISOLATED  
SHOWERS LATE THIS MORNING. SCATTERED SHOWERS WITH ISOLATED  
THUNDERSTORMS THIS AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS AROUND 5 KNOTS. SEAS 4 TO 5 FEET. WAVE  
DETAIL: NORTH 4 FEET AT 9 SECONDS AND NORTH 3 FEET AT 12 SECONDS.  
SCATTERED SHOWERS IN THE EVENING.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS IN THE AFTERNOON. SEAS 5 TO  
6 FEET, BUILDING TO 6 TO 8 FEET IN THE AFTERNOON. WAVE DETAIL: NORTH  
6 FEET AT 11 SECONDS AND EAST 1 FOOT AT 8 SECONDS, BECOMING NORTH  
7 FEET AT 11 SECONDS.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS.  
SEAS 7 TO 9 FEET.    
MONDAY
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO 20 KNOTS IN  
THE AFTERNOON. SEAS 7 TO 8 FEET. WAVE DETAIL: NORTH 8 FEET AT  
13 SECONDS AND EAST 4 FEET AT 5 SECONDS.    
MONDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 6 TO 8 FEET. WAVE DETAIL: NORTH 6 FEET AT 12 SECONDS AND EAST  
4 FEET AT 5 SECONDS.    
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO 20 KNOTS  
IN THE AFTERNOON. SEAS 6 TO 7 FEET.    
TUESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 5 TO 6 FEET.    
WEDNESDAY
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO 20 KNOTS  
IN THE AFTERNOON. SEAS AROUND 5 FEET.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ716-182030-  
COASTAL WATERS FROM CABO SAN JUAN TO THE WATERS BETWEEN ANEGADA  
ISLAND AND VIRGIN GORDA AND NORTH 10 NM-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTH WINDS 10 TO 15 KNOTS, DIMINISHING TO 5 TO 10 KNOTS  
LATE. SEAS 4 TO 5 FEET. WAVE DETAIL: NORTHWEST 4 FEET AT 10 SECONDS  
AND SOUTH 2 FEET AT 3 SECONDS. ISOLATED THUNDERSTORMS. NUMEROUS  
SHOWERS, MAINLY THIS MORNING.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET.  
WAVE DETAIL: NORTH 4 FEET AT 10 SECONDS AND SOUTHEAST 2 FEET AT  
3 SECONDS. NUMEROUS SHOWERS.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET. WAVE DETAIL:  
NORTH 5 FEET AT 11 SECONDS AND EAST 2 FEET AT 4 SECONDS. SCATTERED  
SHOWERS IN THE MORNING.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 5 TO 8 FEET. WAVE DETAIL: NORTH 7 FEET AT 14 SECONDS AND EAST  
3 FEET AT 4 SECONDS.    
MONDAY
 
EAST WINDS AROUND 15 KNOTS WITH GUSTS UP TO 25 KNOTS. SEAS  
5 TO 8 FEET. WAVE DETAIL: NORTH 7 FEET AT 13 SECONDS AND EAST 4 FEET  
AT 5 SECONDS.    
MONDAY NIGHT
 
EAST WINDS AROUND 15 KNOTS WITH GUSTS UP TO  
25 KNOTS. SEAS 5 TO 7 FEET. WAVE DETAIL: NORTH 6 FEET AT 12 SECONDS  
AND EAST 4 FEET AT 5 SECONDS.    
TUESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET.    
WEDNESDAY
 
EAST WINDS AROUND 15 KNOTS. SEAS 4 TO 5 FEET.    
WEDNESDAY NIGHT
 
EAST WINDS AROUND 15 KNOTS. SEAS 4 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ723-182030-  
ANEGADA PASSAGE EAST OF VIRGIN GORDA AND SAINT CROIX SOUTH TO 17N-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST 5 TO  
10 KNOTS LATE. SEAS AROUND 4 FEET. WAVE DETAIL: SOUTH 3 FEET AT  
6 SECONDS AND NORTH 2 FEET AT 13 SECONDS. ISOLATED THUNDERSTORMS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS AFTER MIDNIGHT. SEAS 3 TO 4 FEET.  
WAVE DETAIL: SOUTHEAST 3 FEET AT 5 SECONDS AND NORTH 2 FEET AT  
12 SECONDS.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS. SEAS  
4 TO 5 FEET. WAVE DETAIL: SOUTHEAST 4 FEET AT 5 SECONDS AND NORTH  
3 FEET AT 11 SECONDS.    
SUNDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 4 TO 6 FEET. WAVE DETAIL: EAST 5 FEET AT 6 SECONDS AND NORTH  
3 FEET AT 12 SECONDS.    
MONDAY
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS. SEAS  
5 TO 7 FEET. WAVE DETAIL: EAST 6 FEET AT 6 SECONDS AND NORTH 3 FEET  
AT 13 SECONDS.    
MONDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 5 TO 7 FEET. WAVE DETAIL: EAST 5 FEET AT 7 SECONDS AND NORTH  
4 FEET AT 13 SECONDS.    
TUESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET.    
WEDNESDAY
 
EAST WINDS AROUND 15 KNOTS. SEAS AROUND 5 FEET.    
WEDNESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ726-182030-  
COASTAL WATERS EAST OF PUERTO RICO, AROUND VIEQUES, AND AROUND AND  
JUST NORTH OF CULEBRA AND SAINT JOHN-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET. WAVE DETAIL:  
SOUTHEAST 2 FEET AT 6 SECONDS AND SOUTHWEST 1 FOOT AT 3 SECONDS.  
NUMEROUS SHOWERS THIS MORNING. ISOLATED THUNDERSTORMS. SCATTERED  
SHOWERS THIS AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS AFTER MIDNIGHT. SEAS 2 TO 4 FEET.  
WAVE DETAIL: SOUTHEAST 2 FEET AT 7 SECONDS. SCATTERED SHOWERS.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE DETAIL:  
SOUTHEAST 3 FEET AT 4 SECONDS. SCATTERED SHOWERS IN THE MORNING.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 4 TO 6 FEET. WAVE DETAIL: EAST 4 FEET AT 5 SECONDS.    
MONDAY
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS. SEAS  
5 TO 7 FEET. WAVE DETAIL: EAST 5 FEET AT 6 SECONDS. SCATTERED  
SHOWERS IN THE MORNING.    
MONDAY NIGHT
 
EAST WINDS AROUND 15 KNOTS WITH GUSTS UP TO  
25 KNOTS. SEAS 4 TO 6 FEET. WAVE DETAIL: EAST 5 FEET AT 6 SECONDS.    
TUESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET.    
WEDNESDAY
 
EAST WINDS AROUND 15 KNOTS. SEAS 4 TO 5 FEET.    
WEDNESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ733-182030-  
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N, INCLUDING THE  
COASTAL WATERS OF SAINT CROIX-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 3 FEET. WAVE  
DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS AND WEST 1 FOOT AT 4 SECONDS.  
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS THIS MORNING, THEN  
ISOLATED SHOWERS EARLY THIS AFTERNOON. SCATTERED SHOWERS WITH  
ISOLATED THUNDERSTORMS LATE.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET.  
WAVE DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS AND EAST 1 FOOT AT  
9 SECONDS.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS. SEAS  
3 TO 4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
SUNDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 3 TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 6 SECONDS.    
MONDAY
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS. SEAS  
4 TO 6 FEET. WAVE DETAIL: EAST 6 FEET AT 7 SECONDS AND NORTHWEST  
1 FOOT AT 11 SECONDS.    
MONDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 5 TO 6 FEET. WAVE DETAIL: EAST 6 FEET AT 7 SECONDS AND  
NORTHWEST 1 FOOT AT 13 SECONDS. SCATTERED SHOWERS.    
TUESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET.    
WEDNESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET.    
WEDNESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ735-182030-  
COASTAL WATERS OF SOUTHERN PUERTO RICO OUT 10 NM-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTHEAST WINDS AROUND 5 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS AND WEST 1 FOOT AT 4 SECONDS.  
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS THIS MORNING, THEN  
ISOLATED SHOWERS EARLY THIS AFTERNOON. SCATTERED SHOWERS LATE.    
TONIGHT
 
EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE DETAIL:  
SOUTHEAST 2 FEET AT 6 SECONDS. SCATTERED SHOWERS.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS. SEAS  
2 TO 3 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. SCATTERED  
SHOWERS IN THE MORNING.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS.  
SEAS AROUND 3 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
MONDAY
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS. SEAS  
3 TO 5 FEET. WAVE DETAIL: SOUTHEAST 5 FEET AT 6 SECONDS.    
MONDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS, DIMINISHING TO 10 TO  
15 KNOTS AFTER MIDNIGHT. SEAS 4 TO 5 FEET. WAVE DETAIL: EAST 5 FEET  
AT 7 SECONDS.    
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO 20 KNOTS  
IN THE AFTERNOON. SEAS 4 TO 5 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS, DIMINISHING TO 10 TO  
15 KNOTS AFTER MIDNIGHT. SEAS 4 TO 5 FEET.    
WEDNESDAY
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO 20 KNOTS  
IN THE AFTERNOON. SEAS 4 TO 5 FEET.    
WEDNESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO  
20 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ741-182030-  
MONA PASSAGE SOUTHWARD TO 17N-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTHEAST WINDS AROUND 5 KNOTS, INCREASING TO 5 TO 10 KNOTS  
LATE THIS MORNING AND AFTERNOON. SEAS 4 TO 5 FEET. WAVE DETAIL:  
NORTH 3 FEET AT 10 SECONDS AND SOUTHEAST 2 FEET AT 6 SECONDS.  
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS AFTER MIDNIGHT. SEAS 3 TO 4 FEET.  
WAVE DETAIL: NORTH 3 FEET AT 9 SECONDS AND NORTH 3 FEET AT  
12 SECONDS. SCATTERED SHOWERS AFTER MIDNIGHT.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS. SEAS  
4 TO 5 FEET. WAVE DETAIL: NORTH 5 FEET AT 11 SECONDS AND SOUTHEAST  
3 FEET AT 6 SECONDS. SCATTERED SHOWERS IN THE MORNING.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 5 TO 7 FEET. WAVE DETAIL: NORTH 6 FEET AT 14 SECONDS AND  
SOUTHEAST 4 FEET AT 6 SECONDS.    
MONDAY
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS. SEAS  
6 TO 8 FEET. WAVE DETAIL: SOUTHEAST 6 FEET AT 6 SECONDS AND NORTH  
6 FEET AT 14 SECONDS.    
MONDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 6 TO 8 FEET. WAVE DETAIL: SOUTHEAST 6 FEET AT 7 SECONDS AND  
NORTH 6 FEET AT 13 SECONDS. SCATTERED SHOWERS.    
TUESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET.  
SCATTERED SHOWERS.    
WEDNESDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET. SCATTERED  
SHOWERS.    
WEDNESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS, INCREASING TO 20 TO  
25 KNOTS AFTER MIDNIGHT. SEAS 5 TO 6 FEET. SCATTERED SHOWERS.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ742-182030-  
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET. WAVE DETAIL:  
NORTH 3 FEET AT 11 SECONDS AND NORTHEAST 2 FEET AT 14 SECONDS.  
SCATTERED SHOWERS. ISOLATED THUNDERSTORMS EARLY THIS MORNING.  
ISOLATED THUNDERSTORMS THIS AFTERNOON.    
TONIGHT
 
EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET. WAVE DETAIL:  
NORTH 3 FEET AT 11 SECONDS. SCATTERED SHOWERS IN THE EVENING.    
SUNDAY
 
EAST WINDS AROUND 5 KNOTS, BECOMING NORTHEAST IN THE  
AFTERNOON. SEAS 3 TO 5 FEET.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS,  
DIMINISHING TO 5 TO 10 KNOTS AFTER MIDNIGHT. SEAS 4 TO 6 FEET. WAVE  
DETAIL: NORTHWEST 3 FEET AT 11 SECONDS.    
MONDAY
 
EAST WINDS 5 TO 10 KNOTS. SEAS 5 TO 7 FEET. WAVE DETAIL:  
NORTHWEST 3 FEET AT 14 SECONDS. NUMEROUS SHOWERS IN THE AFTERNOON.    
MONDAY NIGHT
 
EAST WINDS 5 TO 10 KNOTS. SEAS 4 TO 6 FEET. WAVE  
DETAIL: NORTH 6 FEET AT 12 SECONDS AND NORTHEAST 3 FEET AT  
6 SECONDS.    
TUESDAY
 
EAST WINDS 5 TO 10 KNOTS. SEAS 4 TO 6 FEET. SCATTERED  
SHOWERS IN THE AFTERNOON.    
TUESDAY NIGHT
 
EAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET.    
WEDNESDAY
 
EAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET. SCATTERED  
SHOWERS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO  
20 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ745-182030-  
COASTAL WATERS OF SOUTHWESTERN PUERTO RICO OUT 10 NM-  
347 AM AST SAT OCT 18 2025  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: NORTHWEST 3 FEET AT 11 SECONDS AND SOUTHWEST 1 FOOT AT  
4 SECONDS. ISOLATED THUNDERSTORMS EARLY THIS MORNING. SCATTERED  
SHOWERS THIS MORNING, THEN ISOLATED SHOWERS THIS AFTERNOON.    
TONIGHT
 
EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET. WAVE DETAIL:  
NORTHWEST 3 FEET AT 10 SECONDS AND SOUTHEAST 1 FOOT AT 5 SECONDS.  
SCATTERED SHOWERS AFTER MIDNIGHT.    
SUNDAY
 
EAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO 15 KNOTS  
WITH GUSTS UP TO 20 KNOTS IN THE AFTERNOON. SEAS 2 TO 4 FEET. WAVE  
DETAIL: NORTHWEST 3 FEET AT 11 SECONDS AND SOUTHEAST 2 FEET AT  
6 SECONDS.    
SUNDAY NIGHT
 
EAST WINDS 5 TO 10 KNOTS. SEAS 4 TO 6 FEET. WAVE  
DETAIL: NORTHWEST 5 FEET AT 15 SECONDS AND SOUTHEAST 2 FEET AT  
5 SECONDS.    
MONDAY
 
EAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO 15 KNOTS  
WITH GUSTS UP TO 25 KNOTS IN THE AFTERNOON. SEAS 5 TO 7 FEET. WAVE  
DETAIL: NORTHWEST 5 FEET AT 15 SECONDS AND SOUTHEAST 3 FEET AT  
6 SECONDS. SCATTERED SHOWERS IN THE AFTERNOON.    
MONDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS, DIMINISHING TO 5 TO  
10 KNOTS AFTER MIDNIGHT. GUSTS UP TO 25 KNOTS. SEAS 4 TO 6 FEET.  
WAVE DETAIL: NORTHWEST 5 FEET AT 13 SECONDS AND SOUTHEAST 3 FEET AT  
6 SECONDS.    
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO 20 KNOTS  
IN THE AFTERNOON. SEAS 4 TO 6 FEET.    
TUESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS, DIMINISHING TO 10 TO  
15 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET.    
WEDNESDAY
 
EAST WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST 15 TO  
20 KNOTS IN THE AFTERNOON. SEAS 3 TO 5 FEET.    
WEDNESDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
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