High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 271125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC SUN MAY 27 2018

CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAY 27.
24 HOUR FORECAST VALID 0600 UTC MAY 28.
48 HOUR FORECAST VALID 0600 UTC MAY 29.

.WARNINGS.

...GALE WARNING...
.LOW 57N141W 990 MB MOVING NE 05 KT. FRONT EXTENDS FROM 57N133W
TO 53N132W TO 41N150W. WITHIN 240 NM OF LOW CENTER WINDS 25 TO
40 KT. SEAS 12 TO 18 FT. ELSEWHERE WITHIN 300 NM E AND SE OF THE
FRONT WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 58N140W 1003 MB. WITHIN 180 NM NE...240 NM
SE...AND 480 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 56N136W 1016 MB. WITHIN 360 NM S AND SW
QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.

...GALE WARNING...
.FROM 30N TO 43N BETWEEN 116W AND 127W NW WINDS 20 TO 30 KT.
SEAS TO 11 FT.
.24 HOUR FORECAST FROM 34N TO 43N BETWEEN 123W AND 129W N WINDS
25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST FROM 32N TO 44N BETWEEN 123W AND 130W N WINDS
25 TO 35 KT. SEAS 10 TO 17 FT.

...GALE WARNING...
.LOW 42N166E 1005 MB MOVING NE 35 KT. WITHIN 300 NM E AND 540 NM
S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.
.12 HOUR FORECAST LOW 47N172E 998 MB. WITHIN 420 NM E AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 51N180W 995 MB. FRONT TO EXTEND FROM LOW
CENTER TO 47N179W TO 39N170E. WITHIN 240 NM E OF THE FRONT N OF
43N WINDS 35 TO 45 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN 360 NM
E OF THE FRONT WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS ABSORBED INTO
LOW 58N176E 981 MB DESCRIBED BELOW.

...GALE WARNING...
.24 HOUR FORECAST LOW 55N171E 990 MB. WITHIN 540 NM E QUADRANT
AND 480 NM S SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 58N176E 981 MB. FRONT FROM LOW TO 60N176W
TO 55N163W TO 43N177W. WITHIN 480 NM NE QUADRANT...420 NM S
SEMICIRCLE...AND 300 NM E OF FRONT WINDS 25 TO 35 KT. SEAS 10 TO
17 FT.

.SYNOPSIS AND FORECAST.

.FROM 46N TO 60N BETWEEN 154W AND 164W NW WINDS TO 25 KT. SEAS
TO 9 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST WITHIN 240 NM NW OF A LINE FROM 38N151W TO
33N164W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 34N TO 46N W
OF 172E...AND WITHIN 120 NM OF 46N141W.
.24 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
48N178W TO 38N170E.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
50N163W TO 37N172E.

.HIGH 36N139W 1030 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH 38N138W 1031 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 43N170W 1030 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 43N160W 1034 MB.
.48 HOUR FORECAST HIGH 43N149W 1037 MB.

.48 HOUR FORECAST HIGH 38N160E 1022 MB.

.FORECASTER NOLT. 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 0600 UTC SUN MAY 27.
24 HOUR FORECAST VALID 0600 UTC MON MAY 28.
48 HOUR FORECAST VALID 0600 UTC TUE MAY 29.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM LOW PRES 1010 MB NEAR 09N137W TO 14N131W. FROM 11N
TO 18N BETWEEN 129W AND 139W NE TO E WINDS 20 TO 25 KT. SEAS 8
TO 10 FT.
.24 HOUR FORECAST LOW AND TROUGH DISSIPATED. W OF LINE FROM
21N140W TO 17N127W TO 14N127W TO 10N140W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED SWELL.
.48 HOUR FORECAST W OF LINE FROM 20N140W TO 16N132W TO 12N130W
TO 11N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.

.N OF LINE FROM 20N109.5W TO 20N115W TO 30N121W NW TO N WINDS 20
TO 25 KT. SEAS 8 TO 9 FT.
.12 HOUR FORECAST N OF LINE FROM 20N110W TO 20N114W TO 30N122W
WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL.
.24 HOUR FORECAST N OF LINE FROM 22N109.5W TO 22N111W TO 26N115W
NW WINDS 20 TO 25 KT. SEAS TO 8 FT. N OF 29N BETWEEN 117W AND
120W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST N OF 29N BETWEEN 126W AND 132W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN N SWELL.

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

CONVECTION VALID AT 0845 UTC SUN MAY 27...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 14N91W TO 10N100W TO 07N125W TO 08N134W.
ITCZ FROM 08N137W TO BEYOND 07N140W. SCATTERED MODERATE ISOLATED
STRONG FROM 06N TO 12N BETWEEN 84W AND 96W...FROM 06N TO 10N
BETWEEN 96W AND 113W AND WITHIN 60 NM EITHER SIDE OF LINE FROM
06N116W TO 10N132W.

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0000 UTC MAY 27 2018.
24 HOUR FORECAST VALID 0000 UTC MAY 28 2018.
48 HOUR FORECAST VALID 0000 UTC MAY 29 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH DEVELOPING OVER FORECAST AREA.
.48 HOUR FORECAST TROUGH FROM 23N160W TO 29N159W. WINDS
INCREASING TO SE TO NE 20 TO 25 KT N OF 26N WITHIN 210 NM EITHER
SIDE OF TROUGH AXIS.

.HIGH NEAR 30N166W 1023 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH NEAR 29N175E 1023 MB MOVING NNW SLOWLY. RIDGE FROM HIGH TO
24N160E.
.24 OUR FORECAST HIGH N OF FORECAST AREA. RIDGE FROM 30N173E TO
25N160E.
.48 HOUR FORECAST RIDGE FROM 30N171E TO 27N160E.

.OTHERWISE WINDS NE TO E 20 TO 25 KT FROM 16N TO 08N BETWEEN
160E AND 175W.
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 18N TO 08N
BETWEEN 160E AND 179W.
.48 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 16N TO 10N
BETWEEN 160E AND 179W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 10 FT FROM 18N TO 08N BETWEEN 165E AND 170W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 18N TO 08N BETWEEN 160E
AND 175W.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 20N TO 10N BETWEEN 160E
AND 175W...AND ALSO FROM 18N TO 08N BETWEEN 150W AND 140W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 08N146W TO 05N160W TO 08N175W TO 06N177E TO 08N167E
TO 07N160E. SCATTERED MODERATE TO STRONG TSTMS WITHIN 300 NM
EITHER SIDE LINE OF CONVERGENCE W OF 175W. ISOLATED MODERATE
TSMTS WITHIN 150 NM EITHER SIDE LINE OF CONVERGENCE E OF 175W.

$$

.FORECASTER BEDAL. HONOLULU HI.


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