566  
FZHW51 PHFO 131312  
CWFHI1  
 
GENERALIZED STATEWIDE COASTAL WATERS FORECAST FOR HAWAII  
NATIONAL WEATHER SERVICE HONOLULU HI  
312 AM HST MON APR 13 2026  
   
SYNOPSIS FOR HAWAIIAN COASTAL WATERS  
 
A TROUGH REMAINS DRAPED OVER THE CENTRAL COASTAL WATERS,  
EXTENDING FROM A LOW PRESSURE SYSTEM FAR NORTH-NORTHWEST OF THE  
AREA. EAST OF THE TROUGH, MODERATE TO FRESH SOUTHEASTERLY WINDS  
WILL PREVAIL, WHILE LIGHT TO MODERATE SOUTHERLY WINDS ARE  
EXPECTED TO ITS WEST. GENTLE TO MODERATE TRADES RETURN FOR THE  
LATTER HALF OF THE WEEK.  
 
 
 
HAWAIIAN WATERS WITHIN 40 NAUTICAL MILES INCLUDING THE CHANNELS-  
 
   
TODAY  
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET. WAVE  
DETAIL: NORTHWEST 4 FEET AT 10 SECONDS. SCATTERED SHOWERS.    
TONIGHT  
SOUTH SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO  
6 FEET. WAVE DETAIL: NORTHWEST 3 FEET AT 10 SECONDS AND SOUTH  
3 FEET AT 14 SECONDS. ISOLATED SHOWERS.    
TUESDAY  
EAST SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET.  
WAVE DETAIL: NORTHWEST 3 FEET AT 10 SECONDS AND SOUTH 3 FEET AT  
13 SECONDS. ISOLATED SHOWERS.    
TUESDAY NIGHT  
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET.  
WAVE DETAIL: NORTHWEST 3 FEET AT 10 SECONDS AND SOUTH 3 FEET AT  
12 SECONDS. ISOLATED SHOWERS.    
WEDNESDAY  
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET.  
ISOLATED SHOWERS.    
WEDNESDAY NIGHT  
EAST NORTHEAST WINDS 15 TO 20 KNOTS ALENUIHAHA  
CHANNEL...EAST NORTHEAST 7 TO 10 KNOTS ELSEWHERE. SEAS 3 TO  
5 FEET.    
THURSDAY AND FRIDAY  
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5  
FEET.  
 
 
 
 
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