High Seas Forecast
Issued by NWS

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FZPN01 KWBC 201602
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SUN MAY 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20.
24 HOUR FORECAST VALID 1200 UTC MAY 21.
48 HOUR FORECAST VALID 1200 UTC MAY 22.

.WARNINGS.

...GALE WARNING...
.LOW 51N161W 984 MB MOVING NE 15 KT. WITHIN 120 NM N AND 780 NM
S SEMICIRCLES WINDS 25 TO 40 KT. SEAS 10 TO 18 FT. ELSEWHERE
WITHIN 780 NM NW...300 NM NE...1020 NM SE AND 1140 NM SW
QUADRANTS WINDS TO 25 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 54N151W 983 MB. BETWEEN 180 NM AND 720 NM
S SEMICIRCLE...AND BETWEEN 300 NM AND 540 NM NE QUADRANT WINDS
25 TO 40 KT. SEAS 10 TO 19 FT. ELSEWHERE WITHIN 840 NM NW...540
NM NE...1140 NM SE AND 1260 NM SW QUADRANTS WINDS TO 25 KT. SEAS
8 TO 14 FT.
.48 HOUR FORECAST LOW 55N145W 995 MB. WITHIN 300 NM N
SEMICIRCLE...AND 600 NM SE AND 1140 NM SW QUADRANTS WINDS 20 TO
30 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.LOW W OF AREA NEAR 45N156E 988 MB MOVING NE 10 KT. OVER
FORECAST WATERS WITHIN 420 NM NE AND 600 NM SE QUADRANTS WINDS
25 TO 40 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN 600 NM NE AND
1020 NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 49N160E 986 MB. WITHIN 480 NM SE
QUADRANT...AND WITHIN 300 NM NE OF A LINE FROM 52N165E TO
41N176E WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. ELSEWHERE WITHIN
720 NM NE AND 1080 NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 52N168E 982 MB. WITHIN 540 NM SE AND 660
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. ELSEWHERE
WITHIN 120 NM NW...780 NM NE...1260 NM SE AND 840 NM SW
QUADRANTS WINDS TO 25 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.FROM 30N TO 42N BETWEEN 118W AND 131W NW WINDS TO 25 KT. SEAS
TO 8 FT.
.24 HOUR FORECAST FROM 30N TO 43N BETWEEN 118W AND 128W NW WINDS
20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST FROM 30N TO 46N BETWEEN 119W AND 128W NW WINDS
TO 25 KT. SEAS TO 10 FT.

.LOW 54N148W 996 MB MOVING NE 20 KT. WITHIN 420 NM NE AND 660 NM
SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N151W
DESCRIBED IN WARNINGS SECTION ABOVE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 35N TO 41N
BETWEEN 160W AND 169W AND FROM 32N TO 46N W OF 174E.
.24 HOUR FORECAST DENSE FOG FROM 32N TO 49N BETWEEN 179W AND
165E.
.48 HOUR FORECAST DENSE FOG FROM 37N TO 42N BETWEEN 136W AND
140W AND FROM 34N TO 48N BETWEEN 171W AND 173E.

.HIGH 32N141W 1026 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 31N156W 1026 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 31N173W 1025 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 38N178E 1022 MB MOVING E 15 KT.
.24 HOUR FORECAST HIGH 42N175W 1029 MB.
.48 HOUR FORECAST HIGH 38N167W 1032 MB.

.FORECASTER HOLLEY. 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 SUN MAY 20.
24 HOUR FORECAST VALID 1200 UTC MON MAY 21.
48 HOUR FORECAST VALID 1200 UTC TUE MAY 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.S OF LINE FROM 00N131W TO 10N120W TO 06N90W TO 00N96W
TO 03.4S90W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW SWELL.
.24 HOUR FORECAST S OF LINE FROM 00N132W TO 12N118W TO 09N90W TO
00N95W TO 03.4S90W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW
SWELL.
.48 HOUR FORECAST S OF 20N BETWEEN 80W AND 115W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN SW SWELL.

.FROM 12N TO 15N BETWEEN 128W AND 134W NE TO E WINDS 20 TO 25
KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN AREA BOUNDED BY 22N140W TO
13N120W TO 10N120W TO 10N140W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST LOW PRES NEAR 10N134W 1008 MB. WITHIN 210 NM N
SEMICIRCLE NE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE
WITHIN AREA BOUNDED BY 22N140W TO 12N118W TO 10N140W WINDS 20 KT
OR LESS. SEAS 8 TO 9 FT IN NE AND SW SWELL.
.48 HOUR FORECAST LOW PRES NEAR 10N136W 1008 MB. WITHIN 210 NM N
SEMICIRCLE NE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE
WITHIN AREA BOUNDED BY 18N140W TO 14.5N130W TO 12N119W TO
10N119W TO 11N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE AND
SW SWELL.

.24 HOUR FORECAST N OF 29N BETWEEN 118W AND 122W WINDS 20 KT OR
LESS. SEAS 8 FT IN NW SWELL.
.48 HOUR FORECAST N OF 27N E OF 122W...AND FROM 20N TO 27N
BETWEEN 107W AND 116W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NW
AND SW SWELL.

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

CONVECTION VALID AT 1500 UTC SUN MAY 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N73W TO 08N83W TO 11.5N102W TO 09N127W.
ITCZ CONTINUES FROM 09N127W TO BEYOND 08N140W. WIDELY SCATTERED
MODERATE TO STRONG CONVECTION FROM 04.5N TO 11N BETWEEN 83W AND
108W. SCATTERED MODERATE TO STRONG FROM 02N TO 07N E OF
80W...FROM 07N TO 12N BETWEEN 110W AND 115W. SCATTERED MODERATE
TO STRONG WITHIN 210 NM N AND 150 NM S OF AXIS BETWEEN 114W AND
136W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



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