High seas forecast alert with multiple warnings issued for Pacific waters.

FZPN02 KWBC 191125
HSFEPI 1145

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC THU DEC 19 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
[email protected](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 0600 UTC DEC 19.
24 HOUR FORECAST VALID 0600 UTC DEC 20.
48 HOUR FORECAST VALID 0600 UTC DEC 21.

.WARNINGS.

…HURRICANE FORCE WIND WARNING…
.LOW 42N174E 981 MB MOVING E 50 KT. WITHIN 120 NM S AND SW
QUADRANTS WINDS 50 TO 65 KT. SEAS 15 TO 25 FT. ELSEWHERE WITHIN
420 NM S AND SW AND W QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 23
FT. ELSEWHERE FROM 30N TO 45N W OF 180W WINDS 25 TO 40 KT. SEAS
10 TO 18 FT.
.24 HOUR FORECAST LOW 38N154W 981 MB. WITHIN 300 NM S AND 360 NM
SW QUADRANTS WINDS 50 TO 65 KT. SEAS 24 TO 40 FT. ELSEWHERE
WITHIN 420 NM SE AND S…AND 540 NM SW QUADRANTS WINDS 35 TO 50
KT. SEAS 24 TO 36 FT. ALSO WITHIN 600 NM SE…AND 840 NM SW AND W
QUADRANTS WINDS 25 TO 40 KT. SEAS 15 TO 30 FT. OTHERWISE FROM 30N
TO 55N BETWEEN 150W AND 160W…AND FROM 30N TO THE ALEUTIANS
BETWEEN 160W AND 180W WINDS 20 TO 30 KT. SEAS 12 TO 22
FT…HIGHEST FROM 30N TO 42N BETWEEN 150W AND 177W.
.48 HOUR FORECAST LOW 47N137W 973 MB. FROM 39N TO 52N BETWEEN
124W AND 137W WINDS 40 TO 55 KT. SEAS 12 TO 28 FT…HIGHEST S OF
CENTER. ELSEWHERE FROM 30N TO 52N BETWEEN 123W AND 140W WINDS 25
TO 40 KT. SEAS 10 TO 30 FT…HIGHEST W OF A LINE FROM 30N137W TO
36N130W TO 43N127W. OTHERWISE FROM 30N TO 45N BETWEEN 140W AND
150W WINDS 20 TO 30 KT. SEAS 16 TO 27 FT.

…HURRICANE FORCE WIND WARNING…
.24 HOUR FORECAST LOW 39N169E 976 MB AND RAPDILY INTENSIFYING.
WITHIN 420 NM SE AND S…AND 150 NM W QUADRANTS WINDS 45 TO 60
KT. SEAS 13 TO 26 FT. ELSEWHERE WITHIN 150 NM N…540 NM E AND
SE…600 NM S…720 NM SW…AND 480 NM W QUADRANTS WINDS 30 TO 45
KT. SEAS 11 TO 21 FT. ALSO FROM 30N TO 50N W OF 178W WINDS 20 TO
30 KT. SEAS 9 TO 17 FT.
.30 HOUR FORECAST LOW 40N175E 958 MB. WITHIN 300 NM SE…180 NM
SW…AND 120 NM W QUADRANTS WINDS 55 TO 70 KT. SEAS 18 TO 32 FT.
.48 HOUR FORECAST LOW 42N166W 946 MB. WITHIN 240 NM S AND SW
QUADRANTS WINDS 65 TO 80 KT. SEAS 30 TO 56 FT. ELSEWHERE WITHIN
600 NM SE…420 NM S…480 NM SW…AND 180 NM NW QUADRANTS WINDS
50 TO 65 KT. SEAS 15 TO 54 FT…HIGHEST SW OF CENTER. ALSO WITHIN
240 NM N…600 NM E…720 NM SE AND SW…540 NM W…AND 240 NM NW
QUADRANTS WINDS 35 TO 50 KT. SEAS 12 TO 36 FT…HIGHEST SW OF
CENTER. OTHERWISE FROM 30N TO 45N BETWEEN 150W AND 160W…AND
FROM 30N TO 50N BETWEEN 160W AND 175E WINDS 25 TO 40 KT. SEAS 10
TO 27 FT…HIGHEST FROM 31N TO 45N BETWEEN 150W AND 175E.

…STORM WARNING…
.LOW 57N168W 970 MB MOVING W 40 KT. FROM 56N TO 60N BETWEEN 160W
AND 173W WINDS 35 TO 50 KT. SEAS 12 TO 21 FT. ELSEWHERE N OF 50N
BETWEEN 155W AND 180W WINDS 25 TO 35 KT. SEAS 9 TO 20
FT…HIGHEST FROM 50N TO THE ALEUTIANS BETWEEN 154W AND 163W.
.24 HOUR FORECAST LOW AND CONDITIONS W OF AREA.

…STORM WARNING…
.LOW 51N145W 972 MB MOVING NW 25 KT. FROM 48N TO 54N BETWEEN 127W
AND 147W WINDS 35 TO 50 KT. SEAS 10 TO 20 FT. ELSEWHERE N OF A
LINE FROM 30N140W TO 30N136W TO 36N130W TO 47N124W…AND N OF 45N
BETWEEN 140W AND 155W WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 57N159W 971 MB. N OF 55N E OF 165W WINDS 25
TO 40 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 57N172W 975 MB. N OF 55N W OF ALASKA WINDS
25 TO 40 KT. SEAS 8 TO 15 FT.

…STORM WARNING…
.LOW 38N158W 981 MB MOVING NE 30 KT. WITHIN 360 NM S…420 NM
SW…AND 600 NM W QUADRANTS WINDS 40 TO 55 KT. SEAS 18 TO 30 FT.
ELSEWHERE WITHIN 480 NM SE…660 NM SW…AND 840 NM W QUADRANTS
WINDS 25 TO 40 KT. SEAS 17 TO 29 FT. OTHERWISE FROM 30N TO 50N
BETWEEN 150W AND 180W WINDS 25 TO 35 KT. SEAS 12 TO 24 FT.
.24 HOUR FORECAST LOW 45N146W 963 MB. WITHIN 360 NM NE…420 NM
E…180 NM S…120 NM W…AND 300 NM N QUADRANTS…AND FROM 35N
TO 40N BETWEEN 130W AND 134W WINDS 40 TO 55 KT. SEAS 12 TO 28
FT…HIGHEST SE AND S OF CENTER. ELSEWHERE FROM 30N TO 55N
BETWEEN 150W AND A LINE FROM 30N132W TO 40N124W WINDS 25 TO 40
KT. SEAS 11 TO 27 FT…HIGHEST FROM 30N TO 50N BETWEEN 140W AND
150W.
.48 HOUR FORECAST LOW 53N149W 960 MB. WITHIN 360 NM N…480 NM
NE…660 NM E…AND 240 NM S QUADRANTS WINDS 35 TO 50 KT. SEAS 10
TO 25 FT…HIGHEST WITHIN 480 NM E SEMICRICLE. ELSEWHERE N OF 53N
E OF 130W…AND N OF 45N BETWEEN 130W AND 160W WINDS 25 TO 40 KT.
SEAS 10 TO 24 FT…HIGHEST FROM 45N TO 58N BETWEEN 130W AND
154W.

…GALE WARNING…
.COMPLEX LOW WITH MAIN LOW 45N144W 985 MB MOVING NE 20 KT. FROM
30N TO 45N BETWEEN 140W AND 150W WINDS 25 TO 35 KT. SEAS 12 TO 20
FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS ABSORBED BY LOW
56N159W.

…GALE WARNING…
.LOW 54N173W 960 MB MOVING NW 15 KT. N OF 50N W OF 175W WINDS 25
TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 57N177W 981 MB. N OF 54N AND W OF 165W
WINDS 25 TO 35 KT. SEAS 8 TO 19 FT…HIGHEST W OF 180W
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
57N172W.

…GALE WARNING…
.LOW 49N163E 983 MB MOVING SE 15 KT. FROM 45N TO 50N AND W OF
180W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS ABSORBED BY LOW
38N154W.

…GALE WARNING…
.18 HOUR FORECAST NEW LOW 53N174E 976 MB. FROM 50N TO 53N W OF
180W WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.24 HOUR FORECAST NEW LOW 53N176E 978 MB. FROM 50N TO 53N BETWEEN
180W AND 165E WINDS 20 TO 30 KT. SEAS 9 TO 16 FT.
.48 HOUR FORECAST LOW 53N173E 984 MB. CONDITIONS DIMINISHED.

…GALE WARNING…
.48 HOUR FORECAST LOW 40N175E 1000 MB. FROM 30N TO 50N W OF 175E
WINDS 25 TO 40 KT. SEAS 10 TO 22 FT…HIGHEST FROM 31N TO 40N
BETWEEN 175E AND 165E.

…HEAVY FREEZING SPRAY WARNING…
.LIGHT FREEZING SPRAY N OF 63N W OF ALASKA.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 58N165W TO 63N173W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 64N W OF
ALASKA. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF
ALASKA.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY 1 NM OR LESS FROM 54N TO 61N W OF
170W…FROM 51N TO 57N W OF 178E…AND FROM 42N TO 45N BETWEEN
177E AND 169E.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 146W AND
149W…FROM 53N TO 57N BETWEEN 154W AND 164W…AND FROM 39N TO
43N BETWEEN 176E AND 167E.
.48 HOUR FORECAST DENSE FOG FROM 52N TO 56N BETWEEN 156W AND
162W…FROM 43N TO 46N BETWEEN 160W AND 166W…AND FROM 55N TO
62N BETWEEN 169W AND 178E.

.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 0600 UTC THU DEC 19.
24 HOUR FORECAST VALID 0600 UTC FRI DEC 20.
48 HOUR FORECAST VALID 0600 UTC SAT DEC 21.

.WARNINGS.

…GALE WARNING…
.WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO 15N94W TO
16N94W…INCLUDING GULF OF TEHUANTEPEC…N WINDS 25 TO 35 KT.
SEAS 9 TO 11 FT. ELSEWHERE WITHIN 16N94W TO 16N96W TO 13N98W TO
11N97W TO 13N95W TO 14N94W TO 16N94W N TO NE WINDS 25 TO 30 KT.
SEAS 8 TO 10 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 14N96W TO 15N95W TO
16N95W…INCLUDING GULF OF TEHUANTEPEC…N WINDS 30 TO 35 KT.
SEAS 9 TO 12 FT. ELSEWHERE WITHIN 14N94W TO 16N94W TO 16N95W TO
16N96W TO 13N97W TO 12N96W TO 14N94W N TO NE WINDS 25 TO 30 KT.
SEAS 8 TO 11 FT. REMAINDER OF AREA WITHIN 15N94W TO 14N95W TO
13N95W TO 12N97W TO 12N96W TO 13N94W TO 15N94W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN N SWELL.

.SYNOPSIS AND FORECAST.

.COLD FRONT NW OF AREA. WITHIN 26N114W TO 20N130W TO 30N140W TO
04N140W TO 08N122W TO 14N124W TO 26N114W…INCLUDING SEBASTIAN
VIZCAINO BAY…WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW TO N
SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N138W TO 28N140W. WITHIN
30N135W TO 30N140W TO 29N140W TO 28N138W TO 29N136W TO 30N135W SW
TO W WINDS 20 TO 25 KT. SEAS 12 TO 14 FT IN W TO NW SWELL.
ELSEWHERE WITHIN 30N135W TO 28N140W TO 06N140W TO 06N128W TO
09N120W TO 17N133W TO 30N135W WINDS 20 KT OR LESS. SEAS 8 TO 11
FT IN NW SWELL.
.48 HOUR FORECAST OLD COLD FRONT DISSIPATED. NEW COLD FRONT FROM
30N136W TO 28N140W. WITHIN 30N126W TO 30N140W TO 05N140W TO
06N134W TO 15N124W TO 18N133W TO 30N126W WINDS 20 KT OR LESS.
SEAS 8 TO 14 FT IN NW SWELL.

.WITHIN 11N86W TO 11N87W TO 10N88W TO 10N87W TO 10N86W TO
11N86W…INCLUDING GULF OF PAPAGAYO…NE WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 10N88W TO 10N89W TO
09N89W TO 10N87W TO 11N86W…INCLUDING GULF OF PAPAGAYO…NE TO
E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 0900 UTC THU DEC 19…

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH…
MONSOON TROUGH AXIS EXTENDS FROM 09N84W TO 04N94W. ITCZ AXIS
EXTENDS FROM 04N94W TO 05N102W…AND FROM 05N105W TO 05N125W TO
06N140W. SCATTERED MODERATE FROM 05N TO 07N BETWEEN 77W AND 85W.
WIDELY SCATTERED SHOWERS FROM 05N TO 09N BETWEEN 120W AND 135W.

.FORECASTER CHAN. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC DEC 19 2024.
24 HOUR FORECAST VALID 0600 UTC DEC 20 2024.
48 HOUR FORECAST VALID 0600 UTC DEC 21 2024.

.WARNINGS.

…GALE WARNING…
.24 HOUR FORECAST FRONT AND LOW N OF AREA. SW WINDS 30 TO 35 KT N
OF 29N BETWEEN 150W AND 163W. SW WINDS 20 TO 30 KT ELSEWHERE N OF
28N BETWEEN 146W AND 165W.
.48 HOUR FORECAST FRONT AND LOW N OF AREA. ASSOCIATED WINDS MOVE
E OF AREA.

…GALE WARNING…
.24 HOUR FORECAST RAPIDLY INTENSIFYING LOW PASSING N OF AREA.
FRONT 30N164E 25N160E. S TO SW WINDS 30 TO 40 KT N OF 27N W OF
175E. WINDS 20 TO 30 KT ELSEWHERE N OF 26N W OF 178E.
.48 HOUR FORECAST FRONT 30N170W 25N178E 23N160E. SW WINDS 30 TO
40 KT N OF 28N BETWEEN 158W AND 172W. WINDS 20 TO 30 KT ELSEWHERE
N OF 26N BETWEEN 153W AND 178E.

…GALE WARNING…
.WEAK FRONT 30N160W 28N164W MOVING E 50 KT. W WINDS 30 TO
35 KT N OF 29N BETWEEN 159W AND 165W. WINDS 20 TO 30 KT
ELSEWHERE N OF 26N BETWEEN 156W AND 170W.
.24 HOUR FORECAST MERGED WITH FRONT AS DESCRIBED IMMEDIATELY
BELOW.

.SYNOPSIS AND FORECAST.

.FRONT 30N141W 26N148W 25N160W MOVING E 10 KT. SW WINDS 20 TO 25
KT N OF 28N E OF FRONT.
.24 HOUR FORECAST FRONT 28N140W 25N145W. SW WINDS 20 TO 25 KT N OF
26N E OF FRONT.
.48 HOUR FORECAST FRONT MOVED E OF AREA. WINDS EASED TO 20 KT OR
LESS.

.WINDS 20 TO 30 KT FROM 04N TO 22N W OF 170W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT WINDS FROM 05N TO 16N
BETWEEN 151W AND 168E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 14N
BETWEEN 140W AND 160E.

.SEAS 18 TO 20 FT N OF 27N BETWEEN 157W AND 169W. SEAS 12 TO 18
FT ELSEWHERE N OF A LINE FROM 30N140W 23N153W 22N176W 30N176E.
SEAS 8 TO 12 FT N OF LINE 07N160E 09N167E 00N174E 00N166W
04N140W…EXCEPT N OF 24N W OF 167E.
.24 HOUR FORECAST SEAS 18 TO 22 FT N OF 27N BETWEEN 143W AND
165W. SEAS 12 TO 18 FT ELSEWHERE N OF LINE 28N140W 19N153W 26N173W
30N176W. SEAS 8 TO 12 FT N OF LINE 09N160E 10N166E 00N175E
00N164W 06N140W…EXCEPT FROM 20N TO 26N BETWEEN 174E AND 161E.
.48 HOUR FORECAST SEAS 18 TO 24 FT N OF LINE 29N140W 26N151W
30N160W. SEAS 12 TO 18 FT ELSEWHERE N OF LINE 20N140W 16N149W
22N160W 28N175W 25N160E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE
05N160E 03N173E 00N174E 00N162W 05N140W…EXCEPT IN AREA BOUNDED
BY 22N160E 26N178E 17N176E 17N168E 13N165E 09N170E 07N169E 10N160E
22N160E.

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

.ITCZ 07N140W 05N149W 06N153W 05N170E 06N160E. ISOLATED MODERATE
TSTMS WITHIN 180 NM N OF ITCZ E OF 150W…AND WITHIN 240 NM OF
ITCZ W OF 170E.

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.FORECASTER PIERCE. HONOLULU HI.

UUID E6FE482C-BDFB-11EF-87E0-0AFB0A260000 TX 1