HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC SAT SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SEP 19.
24 HOUR FORECAST VALID 0600 UTC SEP 20.
48 HOUR FORECAST VALID 0600 UTC SEP 21.
.WARNINGS.
...STORM WARNING...
.LOW 52N158W 982 MB MOVING NE 10 KT. WITHIN 120 NM W AND SW
SEMICIRCLES AND FROM 45N TO 51N BETWEEN 152W AND 167W WINDS 25 TO
40 KT. SEAS 2.5 TO 5 M. ELSEWHERE EXCLUDING THE BERING SEA FROM
42N TO 54N BETWEEN 150W AND 178W WINDS 20 TO 30 KT. SEAS TO 4 M.
.18 HOUR FORECAST LOW 54N149W 974 MB. FROM 50N TO 53N BETWEEN
146W AND 153W WINDS 35 TO 50 KT. SEAS 4 TO 6.5 M.
.24 HOUR FORECAST LOW 54N150W 974 MB. BETWEEN 120 NM AND 240 NM
SE QUADRANT WINDS 35 TO 45 KT. SEAS 4 TO 7 M. ELSEWHERE EXCLUDING
THE BERING SEA N OF A LINE FROM 43N167W TO 43N150W TO 50N130W
WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW 60N147W 990 MB. EXCLUDING THE BERING SEA N
OF A LINE FROM 50N170W TO 50N153W TO 46N143W TO 53N135W WINDS 20
TO 30 KT. SEAS 2.5 TO 5.5 M...HIGHEST NEAR 58N138W.
...GALE WARNING...
.LOW 60N145W 995 MB MOVING N 10 KT. N OF 59N BETWEEN 143W AND
148W WINDS 25 TO 40 KT. SEAS TO 3.5 M. ELSEWHERE WITHIN 240 NM E
OF A FRONT FROM 59N138W TO 49N140W TO 42N145W WINDS TO 25 KT.
SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.
...GALE WARNING...
.ACROSS THE BERING SEA BETWEEN 178W AND A LINE FROM 54N166W TO
61N166W TO 65N160W WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST ACROSS THE BERING SEA N AND NE OF A LINE FROM
54N165W TO 60N178W WINDS 20 TO 30 KT. SEAS TO 4 M. WINDS AND SEAS
HIGHEST NEAR 57N162W.
.48 HOUR FORECAST ACROSS THE BERING SEA FROM 56N TO 59N E OF 163W
WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE N OF THE ALEUTIAN
ISLANDS TO 61N WINDS TO 25 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.E OF A LINE FROM 40N127W TO 32N123W WINDS TO 25 KT. SEAS TO 2.5
M.
.24 HOUR FORECAST E OF A LINE FROM 43N127W TO 37N127W TO 33N124W
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST E OF A LINE FROM 43N127W TO 37N128W TO 34N125W
WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 45N TO 50N BETWEEN 170W AND 180W WINDS TO
25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 42N TO 49N BETWEEN 153W AND 167W WINDS 20
TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST FROM 37N TO 41N BETWEEN 172W AND 180W WINDS TO
25 KT. SEAS LESS THAN 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF A LINE FROM
60N145W TO 58N138W TO 54N134W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.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 0600 UTC SAT SEP 19.
24 HOUR FORECAST VALID 0600 UTC SUN SEP 20.
48 HOUR FORECAST VALID 0600 UTC MON SEP 21.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 24N137W TO 23N140W TO 16N140W TO 17N137W TO 19N136W TO
24N137W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
WITHIN 23N129W TO 23N134W TO 20N133W TO 18N129W TO 18N127W TO
20N127W TO 23N129W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
TO SE SWELL.
.24 HOUR FORECAST WITHIN 23N131W TO 24N139W TO 18N139W TO
15N130W TO 16N127W TO 23N131W NE TO E WINDS 20 TO 25 KT. SEAS
2.5 TO 3.0 M. WITHIN 15N122W TO 16N124W TO 16N126W TO 13N126W TO
12N125W TO 12N123W TO 15N122W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN E TO SE SWELL.
.48 HOUR FORECAST WITHIN 23N134W TO 25N140W TO 16N140W TO
14N131W TO 14N126W TO 17N126W TO 23N134W NE TO E WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M.
.WITHIN 30N116W TO 30N117W TO 29N117W TO 28N116W TO 28N115W TO
29N115W TO 30N116W...INCLUDING SEBASTIAN VIZCAINO BAY...NW WINDS
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 14N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.09 HOUR FORECAST WITHIN 11N103W TO 11N105W TO 10N106W TO
08N106W TO 06N106W TO 06N103W TO 11N103W S WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
13N107W 1008 MB. WITHIN 13N103W TO 15N105W TO 15N106W TO 13N106W
TO 10N106W TO 09N104W TO 13N103W S WINDS 20 TO 25 KT. SEAS 2.5
TO 3.0 M.
.48 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
16N106W 1007 MB. WITHIN 15N103W TO 17N104W TO 17N106W TO 16N108W
TO 13N107W TO 12N104W TO 15N103W SW TO W WINDS 20 TO 30 KT. SEAS
2.5 TO 3.0 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0920 UTC SAT SEP 19...
.INVEST EP98...SCATTERED MODERATE TO ISOLATED STRONG FROM 04N TO
17N BETWEEN 118W AND 135W.
.INVEST EP99...SCATTERED MODERATE ISOLATED STRONG FROM 05N TO
15N BETWEEN 99W AND 112W.
.TROPICAL WAVE NEAR 82W...NUMEROUS MODERATE TO ISOLATED STRONG
FROM 05N TO 10N BETWEEN 80W AND 89W.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 09N84W TO 09N106W TO
12N120W TO 15N136W. SCATTERED MODERATE TO ISOLATED STRONG FROM
03N TO 16N BETWEEN 90W AND 100W...AND FROM 07N TO 20N BETWEEN
130W AND 138W.
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0600 UTC SEP 19 2026.
24 HOUR FORECAST VALID 0600 UTC SEP 20 2026.
48 HOUR FORECAST VALID 0600 UTC SEP 21 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 16N165W TO 20N169W TO 25N171W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 20N172W TO 25N171W TO 28N169W.
.48 HOUR FORECAST TROUGH 25N176W TO 28N175W TO 30N172W.
.LOW 10N160W 1008 MB NEARLY STATIONARY. SCATTERED MODERATE TSTMS
FROM 09N TO 11N BETWEEN 155W AND 161W.
.24 HOUR FORECAST LOW 12N160W 1010 MB.
.48 HOUR FORECAST LOW ABSORBED INTO MONSOON TROUGH.
.24 HOUR FORECAST NEW LOW 15N141W 1008 MB.
.48 HOUR FORECAST LOW 12N146W 1009 MB.
.WINDS 20 TO 25 KT WITHIN 105 NM OF A LINE FROM 26N172W TO
24N163W TO 18N156W...AND FROM 16N TO 24N E OF 146W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 17N TO 23N BETWEEN 144W
AND 150W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 15N TO 25N E OF 157W.
.SEAS 2.5 TO 3 M FROM 13N TO 24N E OF 160W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 14N TO 23N BETWEEN 142W
AND 165W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 14N TO 25N E OF 160W.
.WINDS 20 KT OR LESS AND SEAS BELOW 2.5 M OVER THE REMAINDER OF
FORECAST AREA.
.MONSOON TROUGH 13N140W TO LOW MENTIONED ABOVE TO 04N170W TO
05N180W. SCATTERED MODERATE TO STRONG TSTMS NEAR TROUGH FROM 02N
TO 07N BETWEEN 169W AND 177W.
.SCATTERED MODERATE TO ISOLATED STRONG TSTMS FROM 00N TO 04N
BETWEEN 143W AND 148W...AND FROM 00N TO 05N BETWEEN 158W AND 167W.
$$
.FORECASTER CHAN. HONOLULU HI.=