Coastal Waters Forecast
Issued by NWS

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510
FZHW51 PHFO 210700
CWFHI1

Generalized Statewide Coastal Waters Forecast for Hawaii
National Weather Service Honolulu HI
900 PM HST Mon Nov 20 2017

.Synopsis for Hawaiian coastal waters...
A surface low northeast of the state will maintain northerly
winds over the Hawaiian coastal waters overnight, while a
lingering north swell keeps seas elevated. Winds will veer
slightly to the northeast on Tuesday as the low weakens and moves
farther away. Strong high pressure will build northwest of the
area during the second half of the week, resulting in strong and
gusty northeast trade winds over the coastal waters. Another large
north swell is expected to move through the area beginning late
Wednesday and continuing through Thursday night.

$$

Hawaiian waters within 40 nautical miles including the channels-

...SMALL CRAFT ADVISORY THROUGH TUESDAY MORNING...

.REST OF TONIGHT...North winds 10 to 20 knots. Wind waves 3 to
4 feet. North swell 10 feet. Scattered showers.
.TUESDAY AND TUESDAY NIGHT...Northeast winds 15 to 20 knots. Wind
waves 3 to 4 feet. North swell 9 feet, subsiding to 8 feet in the
afternoon. Isolated showers.
.WEDNESDAY...Northeast winds 15 to 20 knots. Wind waves 3 to
5 feet. North swell 9 feet, building to 11 feet in the afternoon.
Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots. Wind waves
4 to 6 feet. North swell 12 feet. Scattered showers.
.THURSDAY THROUGH FRIDAY...Northeast winds 20 to 30 knots. Wind
waves 7 to 12 feet. North swell 12 to 13 feet, subsiding to 9 to
11 feet Friday. Scattered showers.
.SATURDAY...East winds 20 to 25 knots. Wind waves 6 to 10 feet.
North swell 7 to 8 feet. Scattered showers.

$$





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