HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC SUN JAN 18 2026
CCODE/2:31:12:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 JAN 18.
24 HOUR FORECAST VALID 1800 UTC JAN 19.
48 HOUR FORECAST VALID 1800 UTC JAN 20.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH MAIN LOW 38N172E 980 MB MOVING E 25 KT. FROM
31N TO 38N W OF 177E WINDS 35 TO 50 KT. SEAS 4 TO 8 M. ELSEWHERE
FROM 30N TO 40N W OF 180W WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ALSO
FROM 40N TO 44N W OF 165E WINDS 20 TO 30 KT. SEAS LESS THAN 4 M.
.24 HOUR FORECAST 45N176W 969 MB. WITHIN 120 NM SW...150 NM
S...AND 120 NM SE QUADRANTS WINDS 50 TO 65 KT. SEAS 5 TO 10 M.
ELSEWHERE WITHIN 300 NM N... 240 NM NE...300 NM E...AND 240 NM S
AND W QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 8 M. ALSO FROM 40N
TO 50N BETWEEN 165W AND 173E...AND FROM 30N TO 40N BETWEEN 180W
AND A LINE FROM 30N175W TO 40N165W WINDS 25 TO 35 KT. SEAS 3 TO 7
M...HIGHEST FROM 38N TO 46N BETWEEN 172W AND 180W.
.48 HOUR FORECAST 55N180W 981 MB. WITHIN 240 NM SE AND 300 NM E
AND NE QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 7.5 M...HIGHEST
FROM 50N TO 56N BETWEEN 169W AND 177W. ELSEWHERE WITHIN 420 NM N
AND E...360 NM S...AND 480 NM SW AND W QUADRANTS WINDS 25 TO 35
KT. SEAS 2.5 TO 6 M...HIGHEST E AND SE OF CENTER.
...GALE WARNING...
.LOW 48N179E 976 MB MOVING NW 20 KT. WITHIN 240 NM S...120 NM
W...AND 240 NM N QUADRANTS...AND FROM 43N TO 55N BETWEEN 167W AND
176W WINDS 30 TO 45 KT. SEAS 3 TO 7 M...HIGHEST S OF CENTER.
ELSEWHERE FROM 40N TO 58N BETWEEN 162W AND 174E WINDS 25 TO 35
KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW 53N173E 976 MB. N OF 50N BETWEEN 167W AND
168E WINDS 25 TO 35 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST LOW 53N172E 986 MB. CONDITIONS DESCRIBED ABOVE
WITH LOW 55N180W.
...GALE WARNING...
.LOW 40N170W 992 MB MOVING NE 20 KT. WITHIN 240 NM E AND 420 NM
SE QUADRANTS WINDS 30 TO 45 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 30N
TO 40N BETWEEN 161W AND 180W WINDS 25 TO 35 KT. SEAS 3 TO 6
M....HIGHEST FROM 35N TO 40N BETWEEN 174W AND 180W.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 48N163W 999 MB AND
SECOND NEW LOW 35N159W 1007 MB. FROM 30N TO 40N BETWEEN 153W AND
161W...AND FROM 31N TO 50N BETWEEN 158W AND 165W WINDS 25 TO 35
KT. SEAS 2.5 TO 5 M...EXCEPT S OF 40N SEAS LESS THAN 4 M.
.48 HOUR FORECAST FIRST LOW DISSIPATED AND SECOND LOW 42N154W
1001 MB. FROM 30N TO 45N BETWEEN 146W AND 157W WINDS 25 TO 35 KT.
SEAS TO 4 M.
...GALE WARNING...
.LOW 39N144W 997 MB MOVING NE 05 KT. FROM 30N TO 44N BETWEEN 135W
AND 156W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 41N143W 1005 MB. FROM 33N TO 45N BETWEEN
137W AND 150W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW 43N143W 1014 MB. WINDS LESS THAN 25 KT.
SEAS LESS THAN 4 M.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW 37N180W 1000 MB. FROM 30N TO 40N W OF
180W...AND FROM 40N TO 44N W OF 170E WINDS 25 TO 35 KT. SEAS 3 TO
6 M.
.48 HOUR FORECAST NEW LOW 43N167W 1002 MB. FROM 30N TO 50N
BETWEEN 163W AND 180W WINDS 25 TO 35 KT. SEAS 3 TO 6 M...HIGHEST
NEAR 50N.
...GALE WARNING...
.36 HOUR FORECAST LOW W OF AREA NEAR 44N149E 978 MB. FROM 33N TO
43N W OF 162E WINDS 25 TO 35 KT. SEAS LESS THAN 4 M.
.48 HOUR FORECAST LOW W OF AREA NEAR 45N155E 976 MB. W OF A LINE
FORM 49N160E TO 46N166E TO 41N170E TO 37N170E TO 34N160E WINDS 30
TO 45 KT. SEAS 3 TO 5 M. ELSEWHERE W OF A LINE FROM 50N162E TO
45N172E TO 35N172E TO 31N160E WINDS 20 TO 30 KT. SEAS TO 4 M.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 52N TO 58N
BETWEEN 171W AND 180W...FROM 45N TO 53N BETWEEN 180W AND
175E...AND N OF 58N BETWEEN 163W AND 170W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 50N BETWEEN 177W AND
178E...N OF 50N BETWEEN 174E AND 169E...FROM 57N TO 60N BETWEEN
163W AND 171W.
.48 HOUR FORECAST DENSE FOG FROM 47N TO 50N BETWEEN 150W AND
153W...FROM 44N TO 49N BETWEEN 168W AND 170W...FROM 42N TO 49N W
OF 169E...N OF 51N W OF 178W... AND N OF 58N BETWEEN 165W AND
175W.
.LIGHT FREEZING SPRAY W AND NW OF A LINE FROM 48N161E TO 54N172E
TO 57N175E.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER EHRBAR. 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 SUN JAN 18.
24 HOUR FORECAST VALID 1800 UTC MON JAN 19.
48 HOUR FORECAST VALID 1800 UTC TUE JAN 20.
.WARNINGS.
...GALE WARNING...
.WITHIN 16N95W TO 16N96W TO 14N96W TO 13N96W TO 14N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 30TO
45 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 15N93W TO 16N95W TO
16N96W TO 10N99W TO 10N97W TO 11N94W TO 15N93W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 15N95W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE
WINDS 30 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 16N94W TO
14N96W TO 16N96W TO 12N99W TO 11N99W TO 12N95W TO 16N94W N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN
12N91W TO 16N94W TO 12N102W TO 10N103W TO 07N97W TO 09N93W TO
12N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N94.5W TO 16N95.5W TO 15.5N95.5W TO
14.5N95.5W TO 15N94.5W TO 16N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 30 TO 40 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 14N94W TO 16N95W TO 16N96W TO 13N97W TO 11N99W
TO 12N96W TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M. REMAINDER AREA WITHIN 12N94W TO 15N96W TO 08N100W TO 06N104W
TO 04N98W TO 07N95W TO 12N94W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N TO NE SWELL.
.SYNOPSIS AND FORECAST.
.WITHIN 11N86W TO 12N87W TO 10N89W TO 09N89W TO 09N87W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 10N86W TO 12N86W TO 11N89W TO 09N91W TO
07N90W TO 07N89W TO 10N86W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 12N86W TO 10N90W TO 08N91W TO 08N90W TO
10N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.WITHIN 30N134W TO 30N140W TO 13N140W TO 11N136W TO 15N133W TO
30N134W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 26N131W TO 30N131W TO 30N140W TO
17N140W TO 19N136W TO 26N131W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N131W TO 30N140W TO 15N140W TO
16N137W TO 21N135W TO 30N131W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1930 UTC SUN JAN 18...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 09N85W TO 04N90W. ITCZ FROM 04N90W
TO 07N102W TO BEYOND 06N140W. SCATTERED MODERATE ISOLATED STRONG
FROM 07N TO 16N BETWEEN 96W AND 109W.
.FORECASTER AL. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 1800 UTC JAN 18 2026.
24 HOUR FORECAST VALID 1800 UTC JAN 19 2026.
48 HOUR FORECAST VALID 1800 UTC JAN 20 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 30N170W 24N178W 22N171E 21N160E MOVING E 15 KT E OF 167E
AND NEARLY STATIONARY ELSEWHERE. WINDS 20 TO 30 KT N OF 25N
BETWEEN 174W AND 163W. ISOLATED MODERATE TSTMS WITHIN 360 NM E OF
FRONT N OF 26N.
.24 HOUR FORECAST FRONT 30N162W 24N172W 21N173W 21N160E. WINDS 20
TO 25 KT N OF 26N BETWEEN FRONT AND 157W.
.48 HOUR FORECAST FRONT 30N156W 23N166W 20N173W. WINDS 20 TO 30
KT FROM 25N TO 20N W OF 179W. WINDS 20 TO 25 KT WITHIN 270 NM E OF
FRONT N OF 25N.
.FRONT 30N164E 28N160E MOVING E 35 KT. WINDS 20 TO 30 KT N OF 27N
W OF 175E.
.24 HOUR FORECAST FRONT 30N179W 26N171E 26N160E. WINDS 20 TO 30
KT BETWEEN 165E AND 177W.
.48 HOUR FORECAST FRONT 30N165W 26N173W 26N172E. WINDS 20 TO 25
KT N OF 27N BETWEEN 173W AND 165W.
.FRONT 19N140W 14N148W NEARLY STATIONARY. WINDS 20 TO 25 KT E OF
LINE 19N140W 18N158W 12N165W 11N156W 18N140W.
.24 HOUR FORECAST FRONT DISSIPATED. ASSOCIATED WINDS EASED TO 20
KT OR LESS.
.48 HOUR FORECAST NEW TROUGH 18N141W 13N140W.
.48 HOUR FORECAST NEW TROUGH 22N165E 21N160E.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 4.5 M N OF LINE 21N160E 22N177E 06N172E 00N172W
06N140W.
.24 HOUR FORECAST SEAS 4 TO 5 M N OF LINE 30N176W 24N169E
25N160E.SEAS 2.5 TO 4 M ELSEWHERE 30N159W 17N179W 18N160E. SEAS
2.5 TO 3 M N OF LINE 30N151W 24N157W 18N154W 19N168W 08N174E
04N157W 15N140W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 14N160E 02N169W
07N150W 12N140W...EXCEPT FROM 24N TO 17N BETWEEN 168W AND
154W...AND N OF 25N BETWEEN 152W AND 141W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 06N140W 04N161W 06N170E 07N160E. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF ITCZ.
$$
.FORECASTER TROTTER. HONOLULU HI.=