Offshore Forecast
Issued by NWS Honolulu, HI

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FZHW60 PHFO 180301
OFFHFO

OFFSHORE WATERS FORECAST FOR HAWAII
NATIONAL WEATHER SERVICE HONOLULU HI
600 PM HST TUE JAN 17 2017

HAWAIIAN OFFSHORE WATERS BEYOND 40 NAUTICAL MILES OUT TO 240
NAUTICAL MILES INCLUDING THE PORTION OF THE PAPAHANAUMOKUAKEA
MARINE NATIONAL MONUMENT EAST OF FRENCH FRIGATE SHOALS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT
OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN
TWICE THE SIGNIFICANT WAVE HEIGHT.

PHZ105-181000-
600 PM HST TUE JAN 17 2017

.SYNOPSIS FOR THE HAWAIIAN OFFSHORE WATERS...
A SURFACE RIDGE NEAR 25N WILL DRIFT N AND STALL NEAR 27N BY
WEDNESDAY. THE RIDGE WILL BE WEAKENED THURSDAY AND FRIDAY BY AN
APPROACHING FRONT. THE FRONT WILL MOVE INTO FAR NORTHERN WATERS LATE
FRIDAY THEN ACROSS THE ISLANDS ON SATURDAY AND SUNDAY...BRINGING
STRONG NE WINDS AND HIGH SEAS.

$$

PHZ180-181000-
HAWAIIAN OFFSHORE WATERS
600 PM HST TUE JAN 17 2017

.TONIGHT...N OF 25N...E TO SE WINDS 10 KT OR LESS. FROM 25N TO
20N...E WINDS 10 TO 15 KT. S OF 20N...E WINDS 15 TO 20 KT. SEAS 6 TO
8 FT...EXCEPT SEAS BUILDING TO 8 TO 12 FT FAR NW WATERS.
.WEDNESDAY AND WEDNESDAY NIGHT...N OF 23N...E TO SE WINDS 10 TO 15
KT. S OF 23N...E WINDS 15 TO 25 KT...STRONGEST S OF 19N. SEAS 8 TO
15 FT...HIGHEST NW HALF.
.THURSDAY AND THURSDAY NIGHT...N OF 24N...E TO SE WINDS 10 KT OR
LESS. FROM 24N TO 20N...E WINDS 10 TO 15 KT. S OF 20N...E WINDS 15
TO 20 KT. SEAS 9 TO 13 FT.
.FRIDAY...E TO NE WINDS 10 TO 20 KT...INCREASING TO 20 TO 30 KT N OF
FRONT MOVING INTO FAR NW WATERS LATE. SEAS 7 TO 10 FT...BUILDING TO
12 FT OVER FAR NW WATERS LATE.
.SATURDAY...FRONT 24N153W TO 21N158W TO 18N160W AT 211800 UTC. N OF
FRONT...NE WINDS 25 TO 35 KT AND SEAS 12 TO 16 FT. S OF FRONT...NE
WINDS 15 TO 20 KT AND SEAS 7 TO 12 FT.
.SUNDAY...E WINDS 20 TO 30 KT. SEAS 10 TO 15 FT.

$$



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