109
FZHW51 PHFO 201405
CWFHI1
GENERALIZED STATEWIDE COASTAL WATERS FORECAST FOR HAWAII
NATIONAL WEATHER SERVICE HONOLULU HI
405 AM HST FRI MAR 20 2026
SYNOPSIS FOR HAWAIIAN COASTAL WATERS
A SURFACE LOW IS CENTERED ROUGHLY 300 NM WEST OF KAUAI WITH A
FRONT EXTENDING FROM THE LOW NORTH OF THE ISLANDS. THE LOW WILL
REMAIN NEARLY STATIONARY THROUGH FRIDAY 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-
TODAY
SOUTH SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 8 FEET.
WAVE DETAIL: SOUTH SOUTHEAST 4 FEET AT 5 SECONDS, NORTH 4 FEET AT
11 SECONDS AND SOUTH 3 FEET AT 12 SECONDS. SHOWERS WITH ISOLATED
THUNDERSTORMS.
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 SOUTHEAST WINDS 10 TO 15 KNOTS NEAR THE BIG
ISLAND...SOUTH SOUTHWEST 20 TO 25 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 SOUTHWEST WINDS TO 15 KNOTS. 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. HEAVY
SHOWERS WITH ISOLATED THUNDERSTORMS.
SUNDAY NIGHT
WEST NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 5 TO
8 FEET. SHOWERS LIKELY.
MONDAY
NORTH NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 7 TO
10 FEET, BUILDING TO 9 TO 12 FEET. SCATTERED SHOWERS.
TUESDAY
ALENUIHAHA CHANNEL, NORTHEAST WINDS 20 TO 25 KNOTS,
BECOMING EAST NORTHEAST 25 TO 30 KNOTS. ELSEWHERE, NORTHEAST
WINDS 15 TO 20 KNOTS. SEAS 8 TO 11 FEET, SUBSIDING TO 7 TO
9 FEET. SCATTERED SHOWERS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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