High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 181021
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU JAN 18 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PAN PAN

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

SYNOPSIS VALID 0600 UTC JAN 18.
24 HOUR FORECAST VALID 0600 UTC JAN 19.
48 HOUR FORECAST VALID 0600 UTC JAN 20.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 44N178E 998 MB MOVING NE 40 KT. FROM 39N TO 46N BETWEEN
174E AND 179W WINDS 30 TO 45 KT. SEAS 13 TO 21 FT.
.12 HOUR FORECAST LOW 47N172W 990 MB. FROM 44N TO 46N BETWEEN
170W AND 175W WINDS 45 TO 65 KT. SEAS 23 TO 33 FT.
.24 HOUR FORECAST LOW 49N163W 987 MB. FROM 45N TO 49N BETWEEN
160W AND 167W WINDS 40 TO 55 KT. SEAS 23 TO 33 FT. ELSEWHERE
BETWEEN 90 NM AND 180 NM NW QUADRANT...ALSO WITHIN 360 NM
SW...480 NM SE AND 300 NM E QUADRANTS WINDS 30 TO 45 KT. SEAS 10
TO 24 FT.
.48 HOUR FORECAST LOW 51N149W 989 MB. BETWEEN 120 NM AND 300 NM
W QUADRANT...ALSO FROM 44N TO 50N BETWEEN 142W AND 158W WINDS 30
TO 45 KT. SEAS 15 TO 30 FT. ELSEWHERE WITHIN 240 NM E AND SE OF
A FRONT FROM 48N139W TO 41N149W WINDS 30 TO 45 KT. SEAS 10 TO 19
FT.

...STORM WARNING...
.LOW 50N134W 966 MB MOVING NE 5 KT. BETWEEN 180 NM AND 480 NM S
AND SE QUADRANTS...ALSO BETWEEN 180 NM AND 360 NM SW QUADRANT
WINDS 40 TO 55 KT. SEAS 25 TO 43 FT. ELSEWHERE WITHIN 600 NM SE
AND 900 NM SW QUADRANTS...ALSO WITHIN 360 NM N SEMICIRCLE WINDS
25 TO 40 KT. SEAS 15 TO 30 FT.
.24 HOUR FORECAST LOW 51N132W 982 MB. WITHIN 300 NM SE...480 NM
SW...360 NM W AND 180 NM NE QUADRANTS...ALSO FROM 36N TO 50N
BETWEEN 136W AND 142W WINDS 30 TO 45 KT. SEAS 12 TO 27 FT.
.48 HOUR FORECAST LOW 53N130W 1001 MB. FROM 49N TO 52N BETWEEN
128W AND 132W WINDS 25 TO 35 KT. SEAS 12 TO 20 FT.

...STORM WARNING...
.LOW W OF AREA 39N150E 980 MB MOVING NE 20 KT. FROM 37N TO 41N W
OF 162E WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 43N161E 968 MB. FRONT WILL EXTEND FROM
43N166E TO 40N170E TO 34N168E. FROM 37N TO 42N W OF 165E WINDS
40 TO 60 KT. SEAS 24 TO 40 FT. ELSEWERE FROM 33N TO 43N W OF
169E WINDS 25 TO 40 KT. SEAS 14 TO 30 FT. ELSEWHERE WITHIN 480
NM NE AND 360 NM NW QUADRANTS...AND WITHIN 240 NM NE AND E OF
FRONT WINDS 30 TO 45 KT. SEAS 10 TO 24 FT.
.48 HOUR FORECAST LOW 46N167E 976 MB. WITHIN 600 NM NE...540 NM
SW AND 360 NM W QUADRANTS...ALSO FROM 38N TO 46N W OF
174E...ALSO WITHIN 240 NM NE AND E OF FRONT FROM 48N175E TO
45N180W TO 40N179W WINDS 30 TO 45 KT. SEAS 12 TO 35 FT...HIGHEST
NEAR 43N165E.

...GALE WARNING...
.LOW 54N172E 988 MB MOVING E 10 KT. FROM 49N TO 53N BETWEEN 165E
AND 175E...ALSO BETWEEN 56N AND 58N W OF 170E WINDS 25 TO 40 KT.
SEAS 12 TO 23 FT.
.24 HOUR FORECAST LOW 54N176E 1009 MB. WITHIN 240 NM S OF A LINE
FROM 53N179E TO 51N176W TO 48N172W WINDS 20 TO 30 KT. SEAS 10 TO
17 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 57N153W 991 MB MOVING NE 10 KT. FROM 50N TO 58N BETWEEN
152W AND 161W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST LOW 59N143W 997 MB. FROM 53N TO 56N BETWEEN
145W AND 151W WINDS TO 25 KT. SEAS 9 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

...GALE WARNING...
.FROM 30N TO 32N BETWEEN 168W AND 179E WINDS 25 TO 40 KT. SEAS 9
TO 15 FT.
.24 HOUR FORECAST LOW 34N169W 1011 MB. WITHIN 180 NM NW
SEMICIRCLE...AND FROM 31N TO 36N BETWEEN 161W AND 170W WINDS 25
TO 40 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW 39N154W 1016 MB. FROM 35N TO 39N BETWEEN
149W AND 155W WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 59N TO 64N BETWEEN 166W AND 173W WINDS 20
TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST FROM 56N TO 60N BETWEEN 161W AND 168W WINDS 25
TO 35 KT. SEAS 8 TO 14 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 62N AND W OF ALASKA.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE
FROM 59N164W TO 62N175W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE
FROM 58N162W TO 59N166W TO 64N172W.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST FROM 30N TO 36N BETWEEN 117W AND 124W WINDS 20
TO 30 KT. SEAS 10 TO 14 FT.

.HIGH 36N160W 1036 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 35N149W 1037 MB.
.48 HOUR FORECAST HIGH 33N139W 1035 MB.

.HIGH 33N170E 1023 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 41N167E 1022 MB MOVING SE 40 KT.
.24 HOUR FORECAST HIGH 41N174W 1025 MB.
.48 HOUR FORECAST HIGH 43N167W 1026 MB.

.FORECASTER SHAW. 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 0600 UTC THU JAN 18.
24 HOUR FORECAST VALID 0600 UTC FRI JAN 19.
48 HOUR FORECAST VALID 0600 UTC SAT JAN 20.

.WARNINGS.

...GALE WARNING...
.WITHIN 90 NM EITHER SIDE OF A LINE FROM 16N95W TO 12.5N96W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 45 KT.
SEAS 10 TO 21 FT. ELSEWHERE WITHIN 120 NM EITHER SIDE OF A LINE
FROM 16N95W TO 13.5N95W TO 08.5N100W N TO NE WINDS 20 TO 30 KT.
SEAS 8 TO 16 FT. REMAINDER OF AREA FROM 04N TO 15N BETWEEN 91W
AND 100W...AND S OF 15N BETWEEN 100W AND 104W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W
TO 13.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 30 TO 40 KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN 75 NM
EITHER SIDE OF A LINE FROM 16N95W TO 14.5N95W TO 12.5N96.5W N TO
NE WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. FROM 04.5N TO 13.5N
BETWEEN 92W AND 110W WINDS 20 KT OR LESS. SEAS 10 TO 14 FT IN
MIXED NE AND NW SWELL. REMAINDER OF AREA S OF 15N BETWEEN 90W
AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW
SWELL.
.36 HOUR FORECAST WITHIN 75 NM EITHER SIDE OF A LINE FROM 16N95W
TO 13N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14N BETWEEN 94W AND
96W N WINDS 20 TO 30 KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N136W TO 28N140W. NW OF FRONT WINDS 20 KT OR
LESS. SEAS 10 TO 19 IN NW SWELL. ELSEWHERE W OF A LINE FROM
30N115W TO 15N104W TO 03.4S104W WINDS 20 KT OR LESS. SEAS 8 TO
15 FT IN MIXED NW AND NE SWELL...HIGHEST N OF 25N E OF FRONT.
.24 HOUR FORECAST COLD FRONT FROM 30N126W TO 23N140W. N OF FRONT
W OF 130W N TO NE WINDS 20 TO 25 KT. SEAS 13 TO 15 FT IN NW
SWELL. REMAINING OPEN WATERS W OF 100W WINDS 20 KT OR LESS. SEAS
8 TO 14 FT IN MIXED SWELL...HIGHEST N OF 26N E OF FRONT.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N115W TO 27N119W
TO 19.5N140W. N OF FRONT W OF 120W N TO NE WINDS 20 TO 30 KT.
SEAS 12 TO 15 FT IN NW SWELL. ELSEWHERE NW OF LINE FROM 28N115W
TO 20N109W TO 15N108W TO 10N91W TO 03N90W TO 03.4S91W WINDS 20
KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.

.WITHIN 45 NM EITHER SIDE OF A LINE FROM 11N86W TO 09N88W...
INCLUDING THE GULF OF PAPAGAYO...N TO NE WINDS 20 TO 25 KT. SEAS
TO 8 FT. N OF 10.5N BETWEEN 88W AND 91W...INCLUDING GULF OF
FONSECA...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF A LINE FROM 11N86W
TO 08.5N89W...INCLUDING THE GULF OF PAPAGAYO...N TO NE WINDS 20
TO 30 KT. SEAS TO 9 FT. ELSEWHERE FROM 05N TO 10.5N BETWEEN 88W
AND 89W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.48 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF A LINE FROM 11N86W
TO 08.5N89W...INCLUDING THE GULF OF PAPAGAYO...N TO NE WINDS 20
TO 30 KT. SEAS TO 9 FT. FROM 07N TO 10N BETWEEN 89W AND 90W
WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NE AND NW SWELL.

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

CONVECTION VALID AT 0815 UTC THU JAN 18...

.SCATTERED MODERATE TO STRONG FROM 12.5N TO 15.5N BETWEEN 98W
AND 108W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 07N77W TO 09N86W TO 04N98W. ITCZ AXIS
EXTENDS FROM 04N98W TO 06.5N109W TO BEYOND 07N140W. SCATTERED
MODERATE ISOLATED STRONG FROM 04N TO 10N BETWEEN 77W AND 86W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF AXIS BETWEEN
90W AND 107W. SCATTERED TO LOCALLY NUMEROUS WITHIN 90 NM S AND
150 NM N OF AXIS BETWEEN 108W AND 121W...AND FROM 06N TO 14N
BETWEEN 121W AND 136W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.


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