High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 221536
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE MAY 22 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

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.

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

SYNOPSIS VALID 1200 UTC MAY 22.
24 HOUR FORECAST VALID 1200 UTC MAY 23.
48 HOUR FORECAST VALID 1200 UTC MAY 24.

.WARNINGS.

...GALE WARNING...
.LOW 52N168E 982 MB MOVING NE 20 KT. OVER FORECAST WATERS FROM
42N TO 52N W OF 180W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
ELSEWHERE WITHIN 240 NM NE AND E OF A FRONT EXTENDING FROM
57N175E TO 50N174W TO 39N177E WINDS 20 TO 30 KT. SEAS TO 9 FT.
ALSO FROM 40N TO 54N W OF 179W WINDS TO 25 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 54N180W 986 MB. WITHIN 600 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 11 TO 22 FT. ELSEWHERE WITHIN 720 NM SE
SEMICIRCLE AND FROM 58N TO 52N W OF 168W WINDS TO 25 KT. SEAS TO
12 FT.
.48 HOUR FORECAST LOW 55N175W 992 MB. FROM 43N TO 54N BETWEEN
161W AND 179E WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 34N161E 1008 MB. OVER FORECAST WATERS FROM
30N TO 36N W OF 166E WINDS 25 TO 35 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 38N168E 1004 MB. WITHIN 120 NM NW AND 360
NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE
WITHIN 660 NM SE SEMICIRCLE WINDS TO 25 KT. SEAS TO 9 FT.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MEAN CENTER 55N148W 995 MB DRIFTING NW. FROM
39N TO 54N BETWEEN 137W AND 160W AND WITHIN 120 NM NE AND E OF A
FRONT FROM 58N146W TO 56N140W TO 52N140W WINDS TO 25 KT. SEAS TO
12 FT.
.24 HOUR FORECAST MERGED LOW 56N149W 1006 MB. FROM 40N TO 52N
BETWEEN 146W AND 163W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

.FROM 35N TO 43N BETWEEN 123W AND 127W AREA OF NW TO N WINDS TO
25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.OVER ICE FREE FORECAST WATERS N OF 62N BETWEEN 165W AND 169W
AREA OF NW TO N WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST NEW LOW 41N133W 1010 MB. FROM 30N TO 44N
BETWEEN 135W AND 143W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 41N132W 1008 MB. WITHIN 300 NM W AND SW
SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.48 HOUR FORECAST NEW LOW 54N148W 1001 MB. TROUGH TO EXTEND FROM
LOW CENTER TO 50N145W TO 46N145W. WITHIN 180 NM E OF TROUGH
WINDS 20 TO 30 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 34N TO 50N
BETWEEN 171W AND 176E.
.24 HOUR FORECAST DENSE FOG FROM 36N TO 40N BETWEEN 173W AND
180E.
.48 HOUR FORECAST DENSE FOG FROM 35N TO 42N BETWEEN 170W AND
170E.

.HIGH 31N140W 1022 MB DRIFTING SE.
.24 HOUR FORECAST HIGH S OF AREA.

.HIGH 37N166W 1031 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 35N161W 1032 MB.
.48 HOUR FORECAST HIGH 35N157W 1030 MB.

.24 HOUR FORECAST HIGH 39N175E 1024 MB.
.48 HOUR FORECAST HIGH MERGED WITH HIGH 35N157W.

.FORECASTER KOSIER. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1200 UTC TUE MAY 22.
24 HOUR FORECAST VALID 1200 UTC WED MAY 23.
48 HOUR FORECAST VALID 1200 UTC THU MAY 24.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN AREA BOUNDED BY 26N115W TO 10N88W TO 10N95W TO 11N125W
TO 26N115W WINDS 20 KT OR LESS. SEAS TO 9 FT PRIMARILY IN MIXED
SWELL.
.24 HOUR WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.30 HOUR FORECAST COLD FRONT FROM 30N135W TO 28N140. W OF FRONT
WINDS 20 KT OR LESS. SEAS TO 8 FT IN N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 30N129W TO 26N134W. N OF 29N
BETWEEN 132W AND 138W WINDS 20 KT OR LESS. SEAS TO 8 FT IN N
SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 1500 UTC TUE MAY 22...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM

$$

.FORECASTER NELSON. NATIONAL HURRICANE CENTER.



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