678  
FZHW51 PHFO 220104  
CWFHI1  
 
GENERALIZED STATEWIDE COASTAL WATERS FORECAST FOR HAWAII  
NATIONAL WEATHER SERVICE HONOLULU HI  
304 PM HST TUE JUL 21 2026  
   
SYNOPSIS FOR HAWAIIAN COASTAL WATERS
 
 
HIGH PRESSURE FAR TO THE NORTHEAST OF HAWAII WILL GRADUALLY MOVE  
SOUTHWEST AND STRENGTHEN THROUGH FRIDAY.  
 

 
 
HAWAIIAN WATERS WITHIN 40 NAUTICAL MILES INCLUDING THE CHANNELS-  
 
...SMALL CRAFT ADVISORY FROM LATE TUESDAY NIGHT THROUGH EARLY  
THURSDAY MORNING FOR MAALAEA BAY...THE PAILOLO AND ALENUIHAHA  
CHANNELS AND WATERS SOUTH OF THE BIG ISLAND...  
   
TONIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET. WAVE  
DETAIL: EAST 5 FEET AT 7 SECONDS, SOUTH 3 FEET AT 11 SECONDS AND  
EAST 3 FEET AT 13 SECONDS. SCATTERED SHOWERS.    
WEDNESDAY
 
EAST WINDS 20 TO 25 KNOTS. SEAS 6 TO 8 FEET. WAVE  
DETAIL: EAST 6 FEET AT 7 SECONDS, SOUTH 3 FEET AT 11 SECONDS AND  
EAST 3 FEET AT 12 SECONDS. SCATTERED SHOWERS.    
WEDNESDAY NIGHT
 
EAST NORTHEAST WINDS 20 TO 25 KNOTS. SEAS 7 TO  
9 FEET. WAVE DETAIL: EAST 6 FEET AT 6 SECONDS, SOUTH 4 FEET AT  
20 SECONDS AND EAST 3 FEET AT 12 SECONDS. SCATTERED SHOWERS.    
THURSDAY
 
EAST NORTHEAST WINDS 20 TO 25 KNOTS. SEAS 7 TO  
9 FEET. WAVE DETAIL: EAST 7 FEET AT 6 SECONDS, SOUTH SOUTHWEST  
4 FEET AT 20 SECONDS AND EAST 3 FEET AT 11 SECONDS. SCATTERED  
SHOWERS.    
THURSDAY NIGHT
 
EAST NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 7 TO  
9 FEET. SCATTERED SHOWERS.    
FRIDAY
 
EAST NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 7 TO 9 FEET.  
ISOLATED SHOWERS.    
FRIDAY NIGHT
 
EAST NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 7 TO  
9 FEET. SCATTERED SHOWERS.    
SATURDAY
 
EAST NORTHEAST WINDS 20 TO 25 KNOTS, RISING TO 25 TO  
30 KNOTS. SEAS 7 TO 9 FEET. SCATTERED SHOWERS.    
SUNDAY
 
EAST NORTHEAST WINDS 20 TO 25 KNOTS. SEAS 7 TO 9 FEET.  
ISOLATED SHOWERS.  
 

 
 
 
 
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