High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 230405
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON OCT 23 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

THE U.S. COAST GUARD IS CURRENTLY EXPERIENCING DEGRADATION IN
IMAGE QUALITY OF ALL HFFAX PRODUCTS. TROUBLESHOOTING OF THE
PROBLEM IS TAKING PLACE.

PAN PAN

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

SYNOPSIS VALID 0000 UTC OCT 23.
24 HOUR FORECAST VALID 0000 UTC OCT 24.
48 HOUR FORECAST VALID 0000 UTC OCT 25.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.N OF 30N W OF 167E WINDS 25 TO 40 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST NEW RAPIDLY INTENSIFYING LOW 53N166E 953 MB.
WITHIN 600 NM E AND 360 NM NE QUADRANTS WINDS 40 TO 55 KT. SEAS
14 TO 22 FT. ELSEWHERE N OF 34N BETWEEN 170E AND 177W WINDS 25
TO 40 KT. SEAS 12 TO 26 FT.
.48 HOUR FORECAST LOW 51N173E 940 MB. WITHIN 420 NM
S...SW...N...AND 720 NM NE QUADRANTS WINDS 50 TO 65 KT. SEAS 20
TO 42 FT. ALSO WITHIN 480 NM N...1020 NM E...AND 720 NM S
QUADRANTS WINDS 35 TO 50 KT. SEAS 15 TO 28 FT. ELSEWHERE WITHIN
1140 NM S AND 720 NM N SEMICIRCLES WINDS 25 TO 35 KT. SEAS 12 TO
20 FT.

...STORM WARNING...
.LOW 42N151W 994 MB MOVING NE 45 KT. FRONT EXTENDS FROM LOW
CENTER TO 36N156W TO 30N164W. WITHIN 420 NM SE AND 180 NM N AND
NW QUADRANTS AND 300 NM SE OF THE FRONT WINDS 30 TO 45 KT. SEAS
11 TO 22 FT.
.18 HOUR FORECAST LOW 54N137W 998 MB. WITHIN 240 NM E AND NE
QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 22 FT.
.24 HOUR FORECAST LOW 55N136W 1000 MB. FRONT TO EXTEND FROM THE
LOW CENTER TO 50N140W TO 40N149W TO 30N156W. WITHIN 300 NM E OF
THE FRONT WINDS 25 TO 40 KT. SEAS 14 TO 22 FT.
.48 HOUR FORECAST LOW INLAND. CONDITIONS DESCRIBED WITH LOW
53N134W.

...STORM WARNING...
.24 HOUR FORECAST POST-TROPICAL CYCLONE LAN 47N163E 968 MB.
WITHIN 720 NM SE AND 660 NM S QUADRANTS WINDS 40 TO 55 KT. SEAS
24 TO 38 FT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE LAN AND CONDITIONS
ABSORBED BY LOW 51N173E.

...GALE WARNING...
.E OF A LINE FROM 53N142W TO 48N135W WINDS 25 TO 35 KT. SEAS 12
TO 22 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 53N158W 996 MB MOVING NE 20 KT. WITHIN 120 NM SE AND 1020
NM W QUADRANTS WINDS 20 TO 30 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 58N152W 1001 MB. WITHIN 120 NM E AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 37N151W 1005 MB. N OF 30N WITHIN 780
NM W AND 360 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
ELSEWHERE WITHIN 600 NM E AND SE QUADRANTS WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 53N134W 999 MB. WITHIN 420 NM SE
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 12 TO 18 FT.

...GALE WARNING...
.LOW 48N161W 1003 MB MOVING NE 10 KT. WINDS LESS THAN 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST LOW 49N156W 1004 MB. WITHIN 240 NM E AND S
SEMICIRCLES WINDS 25 TO 35 KT. SEAS 9 TO 14 FT.
.48 HOUR FORECAST LOW INLAND NEAR 63N149W 1006 MB. WITHIN 240 NM
 480 NM S QUADRANT WINDS 25 TO 35 KT. SEAS 10 TO 16 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 31N156W 998 MB. WITHIN 540 NM N
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 19 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 50N140W 1010 MB. WITHIN 360 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 17 FT.

.SYNOPSIS AND FORECAST.

.LOW 60N163W 993 MB NEARLY STATIONARY. OVER FORECAST WATERS
WITHIN 660 NM W QUADRANT WINDS 20 TO 30 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 60N166W 1004 MB. WITHIN 360 NM W AND SW
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

.FROM 30N TO 36N BETWEEN 120W AND 124W N TO NW WINDS TO 25 KT.
SEAS 8 TO 11 FT.
.24 HOUR FORECAST FROM 38N TO 41N BETWEEN 123W AND 126W N TO NW
WINDS 20 TO 30 KT. SEAS 9 TO 12 FT.
.48 HOUR FORECAST FROM 41N TO 44N BETWEEN 124W AND 128W N WINDS
TO 25 KT. SEAS 8 TO 11 FT.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
WITHIN 240 NM E OF A LINE FROM 52N136W TO 41N145W AND FROM 34N
TO 53N BETWEEN 164E AND 175E.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
52N132W TO 50N141W TO 43N146W.

.HIGH 35N131W 1030 MB MOVING N 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 44N171E 1035 MB MOVING SE 25 KT.
.24 HOUR FORECAST HIGH 35N179W 1028 MB.
.48 HOUR FORECAST HIGH 31N176W 1025 MB.

.30 HOUR FORECAST NEW HIGH 52N139W 1022 MB.
.48 HOUR FORECAST HIGH INLAND NEAR 55N129W 1025 MB.

.48 HOUR FORECAST NEW HIGH 43N158W 1024 MB.

.FORECASTER MUSONDA. 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 0000 UTC MON OCT 23.
24 HOUR FORECAST VALID 0000 UTC TUE OCT 24.
48 HOUR FORECAST VALID 0000 UTC WED OCT 25.

.WARNINGS.

...STORM WARNING...
.GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 95.5W N WINDS 20
TO 30 KT. SEAS BUILDING TO 8 FT.
.09 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 30 TO 35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM EITHER
SIDE OF A LINE FROM 16N95W TO 13.5N95.5W N TO NE WINDS 20 TO 30
KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
30 TO 40 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE
OF A LINE FROM 16N95W TO 12N96W N TO NE WINDS 20 TO 30 KT. SEAS 8
TO 11 FT. REMAINDER OF AREA BOUNDED BY 12N94W TO 10N97W TO
14N97W TO 16N95W TO 13N96W TO 16N94W TO 12N94W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED NE AND S SWELL.
.48 HOUR FORECAST WITHIN 15 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
40 TO 50 KT. SEAS 12 TO 20 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE
OF A LINE FROM 16N95W TO 12.5N95.5W N TO NE WINDS 30 TO 40 KT.
SEAS 10 TO 16 FT. REMAINDER OF AREA WITHIN 120 NM EITHER SIDE OF
A LINE FROM 16N95W TO 12.5N95.5W N TO NE WINDS 20 TO 30 KT. SEAS
8 TO 14 FT. ALSO WITHIN AREA BOUNDED BY 10N93W TO 11N97W TO
10N101W TO 12N100W TO 16N95W TO 15N93W TO 10N93W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED NE AND S SWELL.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA N OF 25N W OF 110W NW WINDS 20 TO 25 KT. SEAS
TO 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA N OF 30N NW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN AREA BOUNDED BY 03.4S117W TO 00N140W TO 30N140W TO
29N118W TO 17N106W TO 03.4S117W...INCLUDING SEBASTIAN VIZCAINO
BAY AND WITHIN 60 NM OF SHORE...WINDS 20 KT OR LESS. SEAS 8 TO
11 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 05N97W TO 03.4S108W TO
02N140W TO 30N140W TO 30N117W TO 05N97W...INCLUDING SEBASTIAN
VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 17N128W TO 11N128W TO
08N140W TO 23N140W TO 30N134W TO 30N116W TO 17N128W...INCLUDING
SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
NW SWELL. WITHIN AREA BOUNDED BY 02S110W TO 06N118W TO 10N108W
TO 10N94W TO 07N88W TO 02S110W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN MIXED SW AND NW SWELL.

.30 HOUR FORECAST WITHIN AREA BOUNDED BY 06N79W TO 05N81W TO
06N83W TO 07N82W TO 07N79W TO 06N79W...INCLUDING NEAR THE AZUERO
PENINSULA...WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 07N79W TO 05N82W TO
06N86W TO 09N86W TO 08N82W TO 09N79W TO 07N79W...INCLUDING NEAR
THE AZUERO PENINSULA...SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

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

CONVECTION VALID AT 0215 UTC MON OCT 23...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N84W TO 08N103W TO 09N120W.
ITCZ AXIS EXTENDS FROM 09N120W TO 07N130W TO 08N140W. SCATTERED
MODERATE ISOLATED STRONG FROM 10N TO 12N BETWEEN 112W AND 124W
AND FROM 06N TO 11N W OF 132W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.



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