Tue, 20 Apr 2021 22:12:23 +0000 Tue, 20 Apr 2021 22:12:23 +0000 Ocean Prediction Center - High Seas Forecast (N Pacific) https://ocean.weather.gov/ none Ocean Prediction Center web team en-us https://ocean.weather.gov/contact/index.php https://ocean.weather.gov/images/xml_logo_opc.gif https://ocean.weather.gov/ NOAA logo 95 45 HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC TUE APR 20 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 1800 UTC APR 20.
24 HOUR FORECAST VALID 1800 UTC APR 21.
48 HOUR FORECAST VALID 1800 UTC APR 22.

.WARNINGS.

...STORM WARNING...
.LOW 43N1589W 998 MB MOVING N 15 KT THROUGH 12 HOURS THEN TURNING
NW. WITHIN 240 NM SW QUADRANT AND BETWEEN 180 NM AND 720 NM E AND
SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN
780 NM NE...840 NM SE AND 720 NM S QUADRANTS WINDS 20 TO 30 KT.
SEAS TO 12 FT.
.24 HOUR FORECAST LOW 50N162W 986 MB. WITHIN 90 NM NW OF A LINE
FROM 55N154W TO 52N164W AND BETWEEN 240 NM AND 360 NM E QUADRANT
WINDS 40 TO 50 KT. SEAS 14 TO 22 FT. ELSEWHERE WITHIN 480 NM
N...540 NM E AND 360 NM W QUADRANTS AND WITHIN 240 NM E OF A
FRONT FROM 52N147W TO 34N149W WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.
ALSO FROM 35N TO 60N BETWEEN 148W AND 175W WINDS 20 TO 30 KT.
SEAS TO 12 FT.
.48 HOUR FORECAST LOW 52N163W 999 MB. FRONT TO EXTEND FROM
58N152W TO 50N139W TO 39N142W. FROM 42N TO 59N BETWEEN 153W AND
175W AND WITHIN 120 NM NE AND E OF FRONT WINDS 20 TO 30 KT. SEAS
8 TO 14 FT.

...GALE WARNING...
.LOW 49N165W 1002 MB MOVING SE 10 KT. BETWEEN 300 NM AND 600 NM
NE...240 NM AND 660 NM SW...AND 300 NM AND 780 NM NW QUADRANTS
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
50N162W DESCRIBED ABOVE.

...GALE WARNING...
.FROM 30N TO 52N BETWEEN 120W AND 131W AREA OF NW TO N WINDS 25
TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST FROM 32N TO 53N BETWEEN 121W AND 131W AREA OF
NW TO N WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST FROM 32N TO 50N BETWEEN 124W AND 130W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 39N164E 1009 MB MOVING NE 15 KT. FRONT EXTENDS FROM 51N162E
TO 44N164E TO LOW TO 31N161E. WITHIN 180 NM NE AND E OF FRONT N
OF 34N SE WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. ELSEWHERE WITHIN
300 NM NE AND E OF FRONT WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 43N167E 1000 MB. WITHIN 180 N AND 300 NM
E QUADRANTS AND 240 NM E OF A FRONT TO EXTEND FROM 38N171E TO
30N168E WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN 180
NM W...540 NM N...420 NM E AND 780 NM S QUADRANTS WINDS 20 TO 30
KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 44N169E 1000 MB. WITHIN 420 NM N SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 34N173E 1001 MB. FROM 30N TO 44N
BETWEEN 175W AND 175E WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.

.SYNOPSIS AND FORECAST.

.SEMISOPOCHNOI VOLCANO NEAR 52N180W IS IN A STATE OF UNREST.
MARINERS ARE URGED TO EXERCISE CAUTION. IF YOU ENCOUNTER ANY
ASH...PLEASE REPORT THE OBSERVATION TO THE OCEAN PREDICTION
CENTER BY CALLING 301 683 1520.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 52N
BETWEEN 147W AND 158W...FROM 43N TO 49N BETWEEN 169W AND 175W AND
WITHIN 90 NM E OF A LINE FROM 50N160E TO 46N163E TO 41N163E.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 52N BETWEEN 143W AND 149W
AND FROM 49N TO 53N BETWEEN 163W AND 168W.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 47N W OF 169E...FROM 41N
TO 46N BETWEEN 178W AND 176E AND WITHIN 120 NM E OF A LINE FROM
56N149W TO 50N141W.

.HIGH 42N177E 1027 MB MOVING SE 30 KT.
.24 HOUR FORECAST HIGH 34N174W 1024 MB.
.48 HOUR FORECAST HIGH 34N164W 1027 MB.

.HIGH 47N137W 1037 MB MOVING N 10 KT.
.24 HOUR FORECAST HIGH 51N137W 1031 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST NEW HIGH 37N135W 1028 MB.

.FORECASTER KOSIER. OCEAN PREDICTION CENTER.

NWS 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 1800 UTC TUE APR 20.
24 HOUR FORECAST VALID 1800 UTC WED APR 21.
48 HOUR FORECAST VALID 1800 UTC THU APR 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 19N TO 28N W OF 130W NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
ELSEWHERE FROM 13N TO 19N AND W OF A LINE FROM 19N134W TO
13N137W WINDS 20 KT OR LESS. SEAS 8 FT PRIMARILY IN NE SWELL.
.12 HOUR FORECAST FROM 21N TO 25N W OF 134W NE TO E WINDS 20 TO
25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 17N TO 27N W OF 132W WINDS
20 KT OR LESS. SEAS 8 FT PRIMARILY IN NE SWELL.
.24 HOUR FORECAST FROM 19N TO 23N W OF 135W WINDS 20 KT OR LESS.
SEAS 8 FT IN NE SWELL.
.36 HOUR FORECAST FROM 07N TO 10N W OF 133W WINDS 20 KT OR LESS.
SEAS 8 FT IN MIXED NE AND S SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.N OF 28N BETWEEN 120W AND 132W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN NW SWELL.
.12 HOUR FORECAST N OF A LINE FROM 30N118W TO 28N120W TO 27N126W
TO 27N132W TO 30N132W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW
TO N SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 118W AND 130W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN NW TO N SWELL.
.36 HOUR FORECAST N OF 29N BETWEEN 120W AND 128W WINDS 20 KT OR
LESS. SEAS 8 FT IN NW TO N SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.S OF 00N BETWEEN 110W AND 120W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN S SWELL.
.24 HOUR FORECAST S OF 02N BETWEEN 104W AND 120W...AND S OF 01N
BETWEEN 98W AND 104W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN S TO
SW SWELL. S OF 00S BETWEEN 88W AND 98W WINDS 20 KT OR LESS. SEAS
8 IN S TO SW SWELL.
.48 HOUR FORECAST S OF 01N BETWEEN 112W AND 120W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN S SWELL. S OF 06N BETWEEN 102W AND 107W
WINDS 20 KT OR LESS. SEAS 8 FT IN S SWELL. S OF 02N BETWEEN 95W
AND 98W...AND S OF 00N BETWEEN 84W AND 95W...EXCEPT IN THE LEE
OF THE GALAPAGOS ISLANDS WINDS 20 KT OR LESS. SEAS 8 FT IN S TO
SW SWELL.

.GULF OF CALIFORNIA 12 HOUR FORECAST N OF 30N S TO SW WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.18 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.24 HOUR FORECAST N OF 14N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS BUILDING TO
8 FT.
.42 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO
13N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
25 KT. SEAS 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST FROM 10N TO 12N E OF 88W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS 8 FT.
.42 HOUR FORECAST FROM 10N TO 12N E OF 90W...INCLUDING THE GULF
OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST FROM 09.5N TO 11.5N E OF 92W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

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

CONVECTION VALID AT 2100 UTC TUE APR 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM NORTHERN COLOMBIA NEAR 10N74W TO
08N80W TO 10N87W TO 06N113W. THE ITCZ AXIS EXTENDS FROM 06N113W
TO 05N120W TO 04N140W. SCATTERED MODERATE ISOLATED STRONG
CONVECTION CAN BE FOUND FROM 02N TO 05N BETWEEN 81W AND 89W...
FROM 04N TO 09N BETWEEN 107W AND 120W...AND FROM 05N TO 07N
BETWEEN 126W AND 130W. SIMILAR CONVECTION IS ALSO NOTED FROM 11N
TO 13N BETWEEN 102W AND 105W.


.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$
]]> Tue, 20 Apr 2021 22:12:23 +0000 https://ocean.weather.gov/shtml/NFDHSFEP1.php https://ocean.weather.gov/shtml/NFDHSFEP1.php?202104202212 Ocean Prediction Center web team