High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 270525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 27.
24 HOUR FORECAST VALID 0000 UTC MAY 28.
48 HOUR FORECAST VALID 0000 UTC MAY 29.

.WARNINGS.

...GALE WARNING...
.LOW 56N142W 985 MB MOVING NE 10 KT. FRONT EXTENDS FROM 58N139W
TO 55N135W TO 48N138W TO 37N159W. WITHIN 300 NM NE AND 420 NM SE
QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 17 FT. ELSEWHERE WITHIN
360 NM NE AND 480 NM S AND SE QUADRANTS...AND 300 NM SE OF FRONT
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 57N141W 1000 MB. FRONT TO EXTEND FROM
54N131W TO 46N136W. WITHIN 180 NM N SEMICIRCLE AND 300 NM S AND
SE QUADRANTS...AND 240 NM SE OF FRONT WINDS 20 TO 30 KT. SEAS 8
TO 12 FT.
.48 HOUR FORECAST LOW 57N139W 1014 MB. WITHIN 300 NM S AND 360
NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.

...GALE WARNING...
.FROM 33N TO 39N BETWEEN 120W AND 125W NW WINDS 20 TO 30 KT.
SEAS TO 10 FT.
.24 HOUR FORECAST FROM 34N TO 43N BETWEEN 123W AND 127W NW WINDS
20 TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST FROM 34N TO 43N BETWEEN 123W AND 128W NW WINDS
25 TO 35 KT. SEAS 10 TO 17 FT.

...GALE WARNING...
.LOW 40N163E 1008 MB MOVING NE 35 KT. WITHIN 300 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 49N176E 996 MB. WITHIN 360 NM SE
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS ABSORBED INTO
LOW 57N172E 982 MB DESCRIBED BELOW.

...GALE WARNING...
.48 HOUR FORECAST LOW W OF AREA 57N172E 982 MB. FRONT FROM LOW
TO 58N177W TO 53N165W TO 43N177W. WITHIN 540 NM NE
QUADRANT...420 NM S SEMICIRCLE...AND 300 NM E OF FRONT WINDS 25
TO 40 KT. SEAS 10 TO 17 FT.

.SYNOPSIS AND FORECAST.

.LOW 53N151W 1002 MB MOVING E 15 KT. WITHIN 540 NM W AND 480 NM
SW QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH ASSOCIATED CONDITIONS
DIMINISHED.

.24 HOUR FORECAST WITHIN 240 NM NW OF A LINE FROM 38N150W TO
32N165W WINDS TO 25 KT. SEAS 9 FT.
.48 HOUR FORECAST FROM 33N TO 40N BETWEEN 151W AND 163W WINDS TO
25 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 34N TO 39N W
OF 167E.
.24 HOUR FORECAST DENSE FOG FROM 33N TO 49N W OF 179W AND FROM
42N TO 47N BETWEEN 134W AND 140W.
.48 HOUR FORECAST DENSE FOG WITHIN 360 NM SE OF A LINE FROM
52N171W TO 45N180W TO 39N170E.

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

.HIGH 44N173W 1030 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH 43N163W 1034 MB.
.48 HOUR FORECAST HIGH 44N150W 1036 MB.

.HIGH 30N168W 1025 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH DISSIPATED.

.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 0000 UTC SUN MAY 27.
24 HOUR FORECAST VALID 0000 UTC MON MAY 28.
48 HOUR FORECAST VALID 0000 UTC TUE MAY 29.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM LOW PRES 1010 MB NEAR 09N136W TO 14N131W. FROM 12N
TO 18N BETWEEN 129W AND 137W NE TO E WINDS 20 TO 25 KT. SEAS 8
TO 9 FT.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 06N141W TO
11N137W. FROM 10.5N TO 17N W OF 133W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN MIXED SWELL.
.48 HOUR FORECAST FROM 11N TO 18N W OF 130W WINDS 20 KT OR LESS.
SEAS TO 9 FT IN MIXED SWELL.

.N OF LINE FROM 21N110W TO 21N115W TO 30N118W NW TO N WINDS 20
TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST S OF 27N WITHIN 90 NM W OF BAJA PENINSULA NW
WINDS 20 TO 25 KT. SEAS TO 8 FT. N OF 28N E OF 122W WINDS 20 KT
OR LESS. SEAS TO 9 FT IN NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA WITHIN 60 NM OF COAST OF MAINLAND MEXICO
FROM 24N TO 28N NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0245 UTC SUN MAY 27...

.TROUGH FROM LOW PRES 1010 MB NEAR 09N136W TO 14N131W. SCATTERED
MODERATE ISOLATED STRONG FROM 10N TO 14N BETWEEN 129W AND 132W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 14N91W TO 10N100W TO 09N113W TO 07N123W TO
09N133W. ITCZ FROM 08N137W TO BEYOND 07N140W. SCATTERED MODERATE
ISOLATED STRONG FROM 06N TO 11N BETWEEN 84W AND 95W...FROM 05N
TO 10N BETWEEN 101W AND 112W AND FROM 06N TO 08N BETWEEN 114W
AND 125W.

.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.

.24 HOUR FORECAST WEAK FRONT FROM 30N178W TO 28N178E.

.48 FORECAST FRONT DISSIPATED.

.RIDGE FROM 30N168W TO 29N174E TO 24N160E NEARLY STATIONARY.

.NE TO E WINDS 20 TO 25 KT FROM 10N TO 22N W OF 150W.

.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 20N W OF
175W.

.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 10N TO 20N W OF
178W...AND FROM 10N TO 20N E OF 147W.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.SEAS 8 TO 9 FT FROM 09N TO 15N BETWEEN 165W AND 170E.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 09N TO 18N BETWEEN 172W
AND 165E.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 09N TO 19N BETWEEN 178W
AND 163E.

.SEAS 8 FT OR LESS REMAINDER OF FORECAST AREA.

.ITCZ FROM 07N140W TO 06N150W TO 06N160W TO 04N160E. ISOLATED
MODERATE TSTMS FROM 01N TO 11N W OF 179W.

$$

.FORECASTER MORRISON. HONOLULU HI.



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