HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SAT OCT 31 2026
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT
TO 53N172E TO 50N180W TO 30N180W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1200 UTC OCT 31.
24 HOUR FORECAST VALID 1200 UTC NOV 01.
48 HOUR FORECAST VALID 1200 UTC NOV 02.
.WARNINGS.
...STORM WARNING...
.24 HOUR FORECAST COMPLEX LOW W OF AREA WITH MAIN LOW 55N171E
960 MB AND RAPIDLY INTENSIFYING. FROM 43N TO 51N W OF 170W...AND
FROM 54N TO 58N W OF 180W WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M.
ELSEWHERE W OF A LINE FROM 36N180W TO 44N170W TO 53N170W TO
59N180W WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 53N172E 955 MB AND
SECOND NEW LOW 54N160W 974 MB. FRONT FROM 59N179E TO SECOND LOW
TO 50N156W TO 46N160W TO 36N180W. FROM 43N TO 51N W OF 173W
WINDS 35 TO 50 KT. SEAS 5.5 TO 8 M. ELSEWHERE WITHIN 360 NM E
AND SE OF FRONT S OF 46N...AND WITHIN 240 NM E AND NE OF FRONT
WINDS 25 TO 40 KT. SEAS 3 TO 7 M.
...GALE WARNING...
.LOW 60N143W 993 MB MOVING NE 15 KT. FRONT FROM LOW TO 58N141W
TO 53N141W. WITHIN 180 NM E OF FRONT WINDS 25 TO 40 KT. SEAS 3
TO 5.5 M.
.24 HOUR FORECAST LOW MOVED INLAND WITH CONDITIONS DESCRIBED
WITH LOW 52N136W DESCRIBED BELOW.
...GALE WARNING...
.LOW 56N159W 984 MB MOVING E 15 KT. WITHIN 540 NM NW AND 660 NM
SW QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 8 M.
.24 HOUR FORECAST LOW 56N149W 993 MB. WITHIN 600 NM SW QUADRANT
WINDS 20 TO 30 KT. SEAS 3 TO 6.5 M.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.
...GALE WARNING...
.LOW 42N147W 1009 MB MOVING NE 20 KT. WITHIN 480 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 2. 5 M.
.24 HOUR FORECAST LOW 52N136W 998 MB. WITHIN 240 NM E AND 300 NM
SE QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW MOVED INLAND WITH NEW LOW 43N136W 1004
MB. FRONT FROM 53N130W TO LOW TO 33N138W. WITHIN 240 NM E OF
FRONT WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
...GALE WARNING...
. S OF 33N BETWEEN 163W AND 180W WINDS 25 TO 35 KT. SEAS 2.5 TO
4.5 M.
.24 HOUR FORECAST CONDITIONS MOVED S OF AREA.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM SW OF A LINE FROM
56N174E TO 53N180W.
.24 HOUR FORECAST DENSE FOG FROM 56N TO 59N W OF 180W.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.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 SAT OCT 31.
24 HOUR FORECAST VALID 1200 UTC SUN NOV 1.
48 HOUR FORECAST VALID 1200 UTC MON NOV 2.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 29N124W TO 30N140W TO 22N140W TO 21N135W TO 24N125W TO
29N124W N TO NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 29N115W TO 30N129W TO 25N131W TO
20N130W TO 22N122W TO 26N114W TO 29N115W...INCLUDING SEBASTIAN
VIZCAINO BAY AND WITHIN 60 NM OF SHORE... NW TO N WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS
THAN 2.5 M.
.24 HOUR FORECAST WITHIN 31N113W TO 32N115W TO 30N115W TO
29N113W TO 29N112W TO 31N113W...INCLUDING THE GULF OF
CALIFORNIA... S WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 16N93W TO 16N95W TO 16N96W TO 14N96W TO 13N94W TO 15N93W
TO 16N93W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 15N93W TO 16N95W TO 16N96W TO 14N97W TO
13N96W TO 13N95W TO 15N93W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 15N93W TO 16N94W TO 16N96W TO 12N96W TO
11N94W TO 15N93W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS
20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.WITHIN 12N87W TO 12N88W TO 10N89W TO 09N87W TO 09N86W TO 10N85W
TO 12N87W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 12N89W TO 09N90W TO
09N87W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 11N86W TO 11N88W TO 10N88W TO 10N87W TO
10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.WITHIN 02N95W TO 10N127W TO 10N135W TO 02N135W TO 03.4S120W TO
03.4S85W TO 02N95W... WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
S TO SW SWELL.
.24 HOUR FORECAST WITHIN 01N94W TO 03N97W TO 05N108W TO 04N113W
TO 03S112W TO 03S94W TO 01N94W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 30N132W TO 30N140W TO 24N140W TO
27N134W TO 30N132W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW
SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1200 UTC SAT OCT 31...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 0N6130W. SCATTERED
MODERATE S OF 11N AND E OF 135W. SCATTERED MODERATE TO STRONG S
OF 05N BETWEEN 95W AND 115W.
$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC OCT 31 2026.
24 HOUR FORECAST VALID 1200 UTC NOV 01 2026.
48 HOUR FORECAST VALID 1200 UTC NOV 02 2026.
.WARNINGS.
...GALE WARNING...
.LOW NEAR 21N175W 1009 MB MOVING SW 15 KT. TROUGH FROM 23N168W TO
LOW TO 11N180W NEARLY STATIONARY. NE WINDS 20 TO 30 KT AND SEAS
2.5 TO 5 M NW OF THE LOW AND TROUGH SYSTEM W OF 167W. SCATTERED
MODERATE TSTMS WITHIN 90 NM OF LOW CENTER...WITHIN 150 NM OF
EASTERN EXTENT OF TROUGH FROM 23N TO 24N BETWEEN 162W AND 167W.
.24 HOUR FORECAST LOW NEAR 16N178W 1010 MB. TROUGH FROM 21N169W
TO LOW. NE WINDS 30 TO 35 KT WITHIN 120 NM OF 23N168W. WINDS 20 TO
30 KT AND SEAS 2.5 TO 5 M ELSEWHERE NNW OF A LINE FROM 30N158W TO
20N180W.
.48 HOUR FORECAST LOW TRANSITIONING TO TROUGH NEAR 17N180W 1012
MB. WINDS 20 TO 30 KT BETWEEN TWO LINES FROM 30N153W TO 24N180W
AND 30N147W TO 22N160W TO 20N180W. SEAS 2.5 TO 4 M N OF 14N EXCEPT
N OF A LINE FROM 30N165W TO 27N180W.
.SYNOPSIS AND FORECAST.
.FRONT FROM 30N167W TO 30N171W TO 28N176W TO 28N180W NEARLY
STATIONARY.
,24 HOUR FORECAST FRONT DISSIPATED.
.TROUGH FROM 02N153W TO 05N153W TO 08N151W MOVING SLOWLY W.
SCATTERED MODERATE TSTMS IN ASSOCIATION WITH TROUGH S OF LINE
FROM 11N153W TO 03N140W.
.24 HOUR FORECAST TROUGH FROM 02N156W TO 08N154W.
.48 HOUR FORECAST TROUGH FROM 01N156W TO 05N152W
.24 HOUR FORECAST NEW FRONT FROM 30N155W TO 26N146W.
.48 HOUR FORECAST FRONT FROM 30N146W TO 25N150W TO 22N157W.
.OTHERWISE...WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER
REMAINDER OF FORECAST AREA.
$$
.FORECASTER BLOOD. HONOLULU HI.=