000
FZPN01 KWBC 252232 CCA
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT SEP 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 25.
24 HOUR FORECAST VALID 1800 UTC SEP 26.
48 HOUR FORECAST VALID 1800 UTC SEP 27.

.WARNINGS.

...STORM WARNING...
.LOW 49N154W 987 MB MOVING E 20 KT. WITHIN 180 NM SW SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 11 TO 22 FT. ELSEWHERE WITHIN 600 NM
S...660 NM W...300 NM N...AND 360 NM E QUADRANTS WINDS 25 TO 40
KT. SEAS 8 TO 18 FT. WINDS AND SEAS HIGHEST SW OF THE LOW
CENTER.
.24 HOUR FORECAST LOW 49N139W 979 MB. WITHIN 240 NM SW SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 16 TO 28 FT. ELSEWHERE WITHIN 780 NM
SE...900 NM SW...780 NM NW...AND 420 NM NE QUADRANTS WINDS 25 TO
40 KT. SEAS 8 TO 20 FT. WINDS AND SEAS HIGHEST SW QUADRANT.
.48 HOUR FORECAST LOW 53N133W 985 MB. BETWEEN 120 NM AND 420 NM S
AND W QUADRANTS WINDS 35 TO 45 KT. SEAS 14 TO 24 FT. ELSEWHERE
FROM 40N TO 56N E OF 148W WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.LOW 62N171W 1004 MB MOVING NE 10 KT. WITHIN 300 NM W AND NW OF A
LINE FROM THE LOW TO 53N166W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 46N136W 1007 MB MOVING NE 30 KT. WITHIN 180 NM OF LOW WINDS
TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST LOW 52N130W 997 MB. WITHIN 180 NM E AND SE
QUADRANTS WINDS 25 TO 40 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 42N165E 1013 MB MOVING NE 25 KT. WINDS LESS THAN 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST LOW 52N171E 990 MB. WITHIN 720 NM SE...480 NM
SW...300 NM NW...AND 480 NM NE QUADRANTS WINDS 25 TO 40 KT. SEAS
8 TO 15 FT.
.48 HOUR FORECAST LOW 56N171W 985 MB. WITHIN 180 NM N
QUADRANT...AND BETWEEN 120 NM AND 480 NM S AND SW QUADRANTS WINDS
25 TO 40 KT. SEAS 10 TO 20 FT...HIGHEST S AND SW QUADRANTS S OF
THE ALEUTIAN ISLANDS. ELSEWHERE WITHIN 360 NM NE...840 NM
SE...600 NM SW...AND 300 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS
8 TO 16 FT.

.SYNOPSIS AND FORECAST.CORRECTED.

.LOW W OF AREA 48N158E 1010 MB MOVING NE 15 KT. WITHIN 240 NM N
AND NE OF A FRONT FROM 50N160E TO 49N166E TO 45N170E WINDS 20 TO
30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW ABSORBED INTO LOW 52N171E WITH CONDITIONS
DESCRIBED IN WARNINGS SECTION ABOVE.

.24 HOUR FORECAST WITHIN 180 NM N OF A LINE FROM 35N165E TO
33N160E WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 33N TO 40N BETWEEN 160E AND 168E WINDS 20
TO 30 KT. SEAS TO 10 FT.

.OCCASIONAL ERUPTIVE ACTIVITY CONTINUES AT THE SEMISOPOCHNOI
VOLCANO WHICH IS LOCATED 140 NAUTICAL MILES WEST OF ADAK.
PREVAILING NW WINDS COULD TRANSPORT TRACE AMOUNTS OF ASHFALL TO
MARINE AREAS SE OF THE VOLCANO. GIVEN THE RECENT HISTORY OF
ERUPTIVE ACTIVITY AT THE VOLCANO ADDITIONAL EMISSIONS MAY OCCUR
AT ANY TIME. MARINERS TRAVELING IN THE VICINITY OF SEMISOPOCHNOI
ARE URGED TO EXERCISE CAUTION. PLEASE REPORT ANY OBSERVATIONS OF
VOLCANIC ASH OR FLOATING VOLCANIC DEBRIS TO THE OCEAN PREDICTION
CENTER BY CALLING 301 683 1520.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 47N
BETWEEN 177E AND 165E.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 51N BETWEEN 177W AND
171E.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM EITHER SIDE OF A LINE
FROM 49N160W TO 40N180W.

.HIGH 32N143W 1023 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 37N176W 1027 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 46N176W 1025 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH 43N166W 1031 MB.
.48 HOUR FORECAST HIGH 38N156W 1032 MB.

.HIGH 54N173E 1021 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST NEW HIGH 43N171E 1023 MB.

.FORECASTER COLLINS. 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 SAT SEP 25.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 26.
48 HOUR FORECAST VALID 1800 UTC MON SEP 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 14N95W TO 15N96W TO 16N95W TO 15N95W TO
14N95W...INCLUDING
THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 8
FT. ELSEWHERE WITHIN 14N96W TO 13N97W TO 14N97W TO 15N96W TO
15N95W TO 14N96W WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NE
SWELL.
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N N WINDS 20 TO
25 KT. SEAS TO 8 FT. ELSEWHERE WITHIN 13N97W TO 13N99W TO 14N97W
TO 15N95W TO 14N95W TO 13N97W WINDS 20 KT OR LESS. SEAS 8 FT IN N
TO NE SWELL.
.39 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 03.4S89W TO 03.4S120W TO 00N120W TO 02N103W TO 00N102W
TO 03.4S89W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SE AND SW
SWELL. WITHIN 01N98W TO 01N104W TO 07N122W TO 10N121W TO 06N97W
TO 01N98W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 05N100W TO 07N116W TO 09N118W TO
08N106W TO 09N98W TO 05N100W WINDS 20 KT OR LESS. SEAS 8 FT IN S
TO SW SWELL.
.48 HOUR FORECAST WITHIN 07N111W TO 08N116W TO 11N115W TO
09N110W TO 08N104W TO 07N111W WINDS 20 KT OR LESS. SEAS 8 FT IN S
TO SW SWELL.

.12 HOUR FORECAST WITHIN 30N135.5W TO 30N136W TO 30N135.5W WINDS
20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.21 HOUR FORECAST CONDITIONS IMPROVE. 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 2030 UTC SAT SEP 25...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N77W TO 11.5N118W TO 10N126W.
ITCZ EXTENDS FROM 10N126W TO BEYOND 09N140W. SCATTERED MODERATE
TO STRONG CONVECTION FROM 05N TO 15N BETWEEN 90W AND 101W...
FROM 10N TO 13.5N BETWEEN 101W AND 113W...AND FROM 06.5N TO 16N
BETWEEN 116W AND 135W.


.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

$$