High Seas Forecast
Issued by NWS

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FZPN01 KWBC 271615
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED MAR 27 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FROM APRIL 1 TO OCTOBER 15, DUE TO THE CLIMATOLOGY OF THE NORTH
PACIFIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL
FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 8 FEET OR GREATER.
ALSO, PLEASE SEE HTTPS://OCEAN.WEATHER.GOV/PROPOSED_HIGH_SEAS
_TROPICAL.PHP FOR A PROPOSAL, AND A REQUEST FOR COMMENTS, TO
INCREASE READABILITY OF THE HIGH SEAS FORECAST (WEB ADDRESS
LOWERCASE).

SECURITE

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1200 UTC MAR 27.
24 HOUR FORECAST VALID 1200 UTC MAR 28.
48 HOUR FORECAST VALID 1200 UTC MAR 29.

.WARNINGS.

...STORM WARNING...
.LOW 48N137W 977 MB MOVING E 15 KT AND SLOWING AFTER 24 HOURS.
WITHIN 240 NM S AND SW QUADRANTS...AND 90 NM N OF FRONT FROM
51N134W TO 49N128W WINDS 35 TO 50 KT. SEAS 13 TO 26 FT...EXCEPT
SEAS 9 TO 18 FT N OF FRONT. ELSEWHERE FROM 38N TO 54N BETWEEN
124W AND 146W WINDS 25 TO 40 KT. SEAS 9 TO 21 FT.
.24 HOUR FORECAST LOW 47N130W 988 MB. WITHIN 420 NM S AND SW
QUADRANTS WINDS 25 TO 40 KT. SEAS 14 TO 24 FT. ELSEWHERE FROM
38N TO 50N E OF 140W WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW 46N129W 1002 MB. WITHIN 240 NM W AND 360
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.

...STORM WARNING...
.LOW 39N166E 988 MB MOVING NE 35 KT AND INTENSIFYING. WITHIN 360
NM S AND 300 NM SE QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 24
FT. ELSEWHERE W OF A LINE FROM 30N163E TO 40N180W TO 42N177E
WINDS 25 TO 40 KT. SEAS 9 TO 21 FT.
.24 HOUR FORECAST LOW 49N180W 980 MB. WITHIN 240 NM SE QUADRANT
WINDS 35 TO 50 KT. SEAS 14 TO 24 FT. ELSEWHERE WITHIN 420 NM N
AND NW...660 NM S AND SE QUADRANTS...AND FROM 31N TO 38N BETWEEN
174E AND 176W WINDS 25 TO 40 KT. SEAS 10 TO 18 FT...EXCEPT S OF
38N SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 56N170W 979 MB. WITHIN 240 NM W AND
SW...AND 360 NM S QUADRANTS WINDS 35 TO 50 KT. SEAS 12 TO 29 FT.
ELSEWHERE N OF 48N BETWEEN 150W AND 174W...AND 360 NM W
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 23 FT.

...GALE WARNING...
.LOW 48N172W 996 MB MOVING NE 15 KT. FROM 36N TO 49N BETWEEN
158W AND 180W WINDS 25 TO 40 KT. SEAS 9 TO 21 FT...HIGHEST NEAR
42N170W.
.24 HOUR FORECAST LOW DISSIPATED. FROM 50N TO 55N BETWEEN 159W
AND 170W WINDS TO 25 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.COMPLEX LOW WITH MAIN LOW 50N167E 996 MB MOVING S 15 KT. WITHIN
240 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 44N166E 1003 MB. WITHIN 480 NM SW AND 360
NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
ABSORBED BY LOW 45N177E DESCRIBED BELOW.

...GALE WARNING...
.LOW 59N175W 998 MB DRIFTING N. BETWEEN 120 NM AND 300 NM SE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT.
.18 HOUR FORECAST LOW 60N177W 998 MB. WITHIN 120 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW DISSIPATED N OF AREA. CONDITIONS DESCRIBED
ABOVE WITH LOW 49N180W.

...GALE WARNING...
.24 HOUR FORECAST COMPLEX NEW LOW WITH MAIN LOW 44N146W 1009 MB.
WITHIN 420 NM S AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 16
FT.
.48 HOUR FORECAST LOW 39N129W 999 MB. WITHIN 420 NM S AND 480 NM
SW...AND 360 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21
FT.
...GALE WARNING...
.48 HOUR FORECAST LOW 45N177E 1005 MB. WITHIN 300 NM SW
QUADRANT...AND FROM 33N TO 39N BETWEEN 170E AND 168E WINDS 25 TO
35 KT. SEAS 10 TO 17 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW COMPLEX LOW WITH MAIN LOW 40N172W 1007 MB.
 FRONT FROM LOW TO 44N167W AND FROM LOW TO 35N175W TO 30N178W.
WITHIN 300 NM E OF FRONT WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 59N W OF 178W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 58N172W TO
55N180W TO 55N171E.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 57N156W TO 55N172E.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 58N173W TO 56N174E.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 51N
BETWEEN 158W AND 161E AND FROM 39N TO 45N W OF 174E.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 55N BETWEEN 163W AND
169E.
.48 HOUR FORECAST DENSE FOG N OF 46N BETWEEN 148W AND 165W...AND
N OF 54N BETWEEN 165W AND 175W.

.FORECASTER ROWLAND. 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 WED MAR 27.
24 HOUR FORECAST VALID 1200 UTC THU MAR 28.
48 HOUR FORECAST VALID 1200 UTC FRI MAR 29.

.WARNINGS.

...GALE WARNING...
.18 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING
GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS BUILDING TO 8 FT.
.24 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 14.5N95W
N TO NE WINDS 30 TO 35 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 45
NM OF A LINE FROM 16N95W TO 13.5N96W N TO NE WINDS 20 TO 30 KT.
SEAS TO 8 FT.
.36 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 15N95W
TO 13.5N96W N TO NE WINDS 30 TO 35 KT. SEAS 10 TO 14 FT.
ELSEWHERE WITHIN 45 NM OF A LINE FROM 16N95W TO 15N95W TO
13.5N96W TO 12N98W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 14N95W N
TO NE WINDS 30 TO 35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM
OF A LINE FROM 16N95W TO 14N95W TO 12N96W  TO 11N99W N TO NE
WINDS 20 TO 30 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA FROM 10N
TO 14N BETWEEN 93W AND 100W WINDS 20 KT OF LESS. SEAS 8 TO 10 FT
IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.W OF A LINE FROM 30N123W TO 20N131W TO 12N126W TO 05N140W...
EXCEPT NW OF A LINE FROM 30N136W TO 24N140W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL. FROM 04N TO 10N BETWEEN
116W AND 130W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE AND NW
SWELL.
.24 HOUR FORECAST FROM 05N TO 19N W OF 130W...AND FROM 05N TO
17N BETWEEN 121W AND 130W WINDS 20 KT OR LESS. SEAS 8 FT IN
MIXED NE AND NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 18N TO 20.5N BETWEEN 105W AND 107W...INCLUDING WATERS NEAR
CABO CORRIENTES...NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST FROM 19N TO 23N BETWEEN 105W AND 109W NW WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA 12 HOUR FORECAST S OF 28N NW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST N OF 29N BETWEEN 128W AND 136W WINDS 20 KT OR
LESS. SEAS 8 FT IN NW SWELL.
.42 HOUR FORECAST N OF A LINE FROM 30N125W TO 28N130W TO 29N140W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST N OF A LINE FROM 30N121W TO 27N126W TO 27N132W
TO 29N140W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL...
HIGHEST NEAR 30N126W.

.48 HOUR FORECAST FROM 10N TO 11.5N E OF 88W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.

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

CONVECTION VALID AT 1500 UTC WED MAR 27...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
AN EQUATORIAL TROUGH EXTENDS WESTWARD FROM A 1011 MB LOW
PRESSURE OVER NORTHERN COLOMBIA TO A 1010 MB LOW PRESSURE
LOCATED NEAR 05N104W TO ANOTHER 1009 MB LOW PRESSURE SITUATED
NEAR 05N125W. SCATTERED MODERATE CONVECTION IS NOTED FROM 00N TO
09N BETWEEN 80W AND 110W. SCATTERED MODERATE TO ISOLATED STRONG
CONVECTION IS OBSERVED FROM 04N TO 07N BETWEEN 116W AND 125W.

$$

.FORECASTER GR. NATIONAL HURRICANE CENTER.


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