FZHW51 PHFO 210109

CWFHI1



Generalized Statewide Coastal Waters Forecast for Hawaii

National Weather Service Honolulu HI

309 PM HST Fri Mar 20 2026



.Synopsis for Hawaiian coastal waters...

Low pressure west of Kauai will remain nearly stationary through 

today then pass north of the islands Saturday. The low will lift 

northeast of the state on Sunday, and strong high pressure will 

build far north of the islands Monday and Tuesday. 



$$



Hawaiian waters within 40 nautical miles including the channels-





.TONIGHT...South winds 15 to 20 knots. Seas 6 to 8 feet. Wave

Detail: North 5 feet at 10 seconds and south southwest 4 feet at

5 seconds. Heavy showers with isolated thunderstorms. 

.SATURDAY...South southwest winds 20 to 25 knots near Kauai and

Oahu...south 10 to 15 knots elsewhere. Seas 7 to 10 feet. Wave

Detail: North northeast 6 feet at 11 seconds, south southwest

4 feet at 5 seconds and south southwest 3 feet at 18 seconds.

Heavy showers with isolated thunderstorms. 

.SATURDAY NIGHT...South winds 7 to 10 knots near the Big Island...

 south southwest 15 to 20 knots elsewhere. Seas 6 to 9 feet. Wave

Detail: North northeast 5 feet at 10 seconds, southwest 3 feet at

4 seconds and northwest 3 feet at 15 seconds. Heavy showers with

isolated thunderstorms. 

.SUNDAY...Southwest winds 10 to 15 knots. Seas 5 to 8 feet. Wave

Detail: North northeast 4 feet at 10 seconds, southwest 3 feet at

4 seconds, northwest 3 feet at 14 seconds and south southwest

3 feet at 16 seconds. Heavy showers with isolated thunderstorms. 

.SUNDAY NIGHT...West southwest winds 10 to 15 knots. Seas 5 to

8 feet. Showers likely. 

.MONDAY...Northeast winds 15 to 20 knots near Kauai and Oahu...

northeast 7 to 10 knots elsewhere. Seas 7 to 10 feet. Scattered

showers. 

.MONDAY NIGHT...Northeast winds to 20 knots to Kauai...northeast

10 to 15 knots elsewhere. Seas 9 to 12 feet. Scattered showers. 

.TUESDAY...Northeast winds 15 to 20 knots. Seas 8 to 11 feet,

subsiding to 7 to 9 feet. Scattered showers. 

.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 7 to 9 feet.

Scattered showers through the night. Isolated showers through the

day.  



Winds and seas higher in and near tstms.



$$