High Seas Forecast
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000
FZPN02 KWBC 191125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC THU APR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 19.
24 HOUR FORECAST VALID 0600 UTC APR 20.
48 HOUR FORECAST VALID 0600 UTC APR 21.

.WARNINGS.

...STORM WARNING...
.LOW 42N160E 991 MB MOVING NE 30 KT. OVER FORECAST WATERS FROM
34N TO 45N W OF 171E WINDS 25 TO 40 KT. SEAS 9 TO 17 FT.
.06 HOUR FORECAST LOW 43N164E 989 MB. BETWEEN 120 NM AND 300 NM
SW SEMICIRCLE WINDS 40 TO 50 KT. SEAS 14 TO 21 FT.
.24 HOUR FORECAST LOW 45N176E 982 MB. BETWEEN 300 NM AND 540 NM
SE AND 240 NM AND 480 NM SW QUADRANTS WINDS 40 TO 50 KT. SEAS 15
TO 29 FT. ELSEWHERE FROM 34N TO 49N BETWEEN 171W AND 166E WINDS
25 TO 40 KT. SEAS 9 TO 19 FT.
.48 HOUR FORECAST LOW 49N170W 982 MB. BETWEEN 120 NM AND 360 NM
SW SEMICIRCLE WINDS 40 TO 50 KT. SEAS 23 TO 29 FT. ELSEWHERE
WITHIN 240 NM N...720 NM E...540 NM SW...AND 480 NM W QUADRANTS
WINDS 25 TO 40 KT. SEAS 10 TO 23 FT.

...GALE WARNING...
.LOW 56N146W 993 MB MOVING NW 15 KT. WITHIN 360 NM E OF A FRONT
FROM 55N145W TO 50N146W TO 43N153W WINDS 25 TO 40 KT. SEAS 9 TO
16 FT.
.24 HOUR FORECAST LOW INLAND 61N149W 993 MB. OVER FORECAST
WATERS WITHIN 300 NM SE QUADRANT AND 240 NM SE OF A FRONT TO
EXTEND FROM 54N132W TO 49N135W TO 41N142W WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW WELL INLAND. FROM 45N TO 53N E OF 130W
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.LOW 56N169W 982 MB MOVING SE 10 KT. WITHIN 900 NM S AND 660 NM
SW QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 20 FT.
.24 HOUR FORECAST LOW 55N159W 993 MB. FROM 44N TO 53N BETWEEN
153W AND 166W WINDS 25 TO 35 KT. SEAS 12 TO 19 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 46N TO 54N BETWEEN 131W
AND 151W WINDS TO 25 KT. SEAS TO 13 FT.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS WITHIN 240 NM SW OF A LINE FROM 50N178E TO
52N164E AREA OF W TO SW WINDS TO 25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST CONDITIONS ABSORBED BY LOW 55N159W DESCRIBED
IN WARNINGS SECTION ABOVE.

.LOW 36N122W 1016 MB MOVING SE 35 KT. WITHIN 300 NM W AND 420 NM
NW QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW DISSIPATED. OVER FORECAST WATERS WITHIN
120 NM E AND NE OF A LINE FROM 42N126W TO 36N125W TO 31N121W
AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST FROM 32N TO 40N BETWEEN 120W AND 127W AREA OF
N TO NW WINDS 20 TO 30 KT. SEAS TO 11 FT.

.48 HOUR FORECAST LOW 53N174E 997 MB. OVER FORECAST WATERS
WITHIN 240 NM SW SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 11 FT.

.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE
FORECAST WATERS N AND E OF A LINE FROM 62N173W TO 61N168W.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS W OF A LINE FROM 43N162E TO 37N167E.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 46N BETWEEN 177W AND
180W.
.48 HOUR FORECAST DENSE FOG FROM 47N TO 51N BETWEEN 159W AND
166W.

.HIGH 37N179W 1027 MB MOVING E 35 KT.
.24 HOUR FORECAST HIGH 38N161W 1029 MB.
.48 HOUR FORECAST HIGH 40N141W 1034 MB.

.HIGH 38N138W 1028 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 36N133W 1031 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 46N128W 1024 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST HIGH 36N171E 1022 MB.

.FORECASTER BELL. 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 THU APR 19.
24 HOUR FORECAST VALID 0600 UTC FRI APR 20.
48 HOUR FORECAST VALID 0600 UTC SAT APR 21.

.WARNINGS.

...GALE WARNING...
.18 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N WINDS 25 TO 35 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W
INCLUDING GULF OF TEHUANTEPEC...N WINDS 25 TO 40 KT. SEAS 8 TO
13 FT.
.36 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14.5N95.5W
TO 12N97W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM
16N95W TO 11N97W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
NE AND SW SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N96W...
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS
8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.FROM 12N TO 21N W OF 130W WINDS 20 KT OR LESS. SEAS TO 8 FT IN
NW SWELL.
.24 HOUR FORECAST TROUGH FROM 05N130W TO 10N125W. FROM 07N TO
10N BETWEEN 133W AND 139W...AND FROM 12N TO 15N BETWEEN 121W AND
128W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE W OF
LINE FROM 22N140W TO 17N115W TO 12N115W TO 06N132W WINDS 20 KT
OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST FROM 10N TO 14N BETWEEN 123W AND 128W NE WINDS
20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE W OF LINE FROM 24N140W
TO 12N116W TO 06N134W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW
SWELL.

.S OF LINE FROM 03.4S90W TO 10N97W TO 11N115W TO 00N120W WINDS
20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST S OF 00S BETWEEN 102W AND 115W WINDS 20 KT OR
LESS. SEAS 8 FT IN MIXED SW AND NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10N89W...INCLUDING GULF OF
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N86W TO
10N89W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS
TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.24 HOUR FORECAST N OF 25N E OF 116W...INCLUDING SEBASTIAN
VIZCAINO BAY...NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 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 0900 UTC THU APR 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 06N77W TO 07N96W. ITCZ FROM 07N96W TO
07N120W TO 05N130W TO 06N140W. SCATTERED MODERATE ISOLATED
STRONG FROM 07N TO 12N BETWEEN 109W AND 115W. SCATTERED MODERATE
TO STRONG WITHIN 75 NM OF ITCZ AXIS BETWEEN 122W AND 132W.

.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 0600 UTC APR 19 2018.
24 HOUR FORECAST VALID 0600 UTC APR 20 2018.
48 HOUR FORECAST VALID 0600 UTC APR 21 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 29N170W TO 24N174W TO 15N176W TO 07N176E MOVING W
SLOWLY. ISOLATED MODERATE TSTMS WITHIN 270 NM OF TROUGH S OF
16N...AND ELSEWHERE FROM 10N TO 20N BETWEEN 162W AND 174W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N167E TO 28N160E MOVING S SLOWLY.

.NE TO E WINDS 20 TO 25 KT FROM 10N TO 21N W OF 170E...AND FROM
17N TO 25N BETWEEN 170E AND 177W. E WINDS FROM 14N TO 23N E OF
160W...AND FROM 13N AND 18N BETWEEN 172W AND 160W.
.24 HOUR FORECAST E TO NE WINDS 20 TO 25 KT FROM 10N TO 23N E OF
150W...AND FROM 10N TO 18N BETWEEN 150W AND 170W.
.48 HOUR FORECAST E TO NE WINDS 20 TO 25 KT FROM 05N TO 25N E OF
150W...AND FROM 11N TO 18N BETWEEN 150W AND 168W.

.SEAS 8 TO 10 FT FROM 06N TO 22N W OF 166E...FROM 09N TO 24N
BETWEEN 166E AND 179E...AND FROM 07N TO 17N BETWEEN 156W AND
172W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 12N TO 20N W OF 167E...AND
FROM 10N TO 17N BETWEEN 163W AND 175W.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 11N TO 18N BETWEEN 154W
AND 168W. SEAS 8 TO 9 FT E OF LINE FROM 05N144W TO 19N152W TO
30N151W.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS REST OF AREA.

.ITCZ FROM 06N140W TO 07N148W TO 07N163W TO 08N169W. ISOLATED
MODERATE TSTMS FROM 05N TO 10N BETWEEN 148W AND 171W.

.SCATTERED MODERATE TO STRONG TSTMS S OF 09N W OF 169E...AND
FROM 02N TO 09N BETWEEN 169E AND 172E.

$$

.HONOLULU FORECAST OFFICE.


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