High Seas Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZPN02 KWBC 192325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC THU OCT 19 2017

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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

SECURITE

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

SYNOPSIS VALID 1800 UTC OCT 19.
24 HOUR FORECAST VALID 1800 UTC OCT 20.
48 HOUR FORECAST VALID 1800 UTC OCT 21.

.WARNINGS.

...STORM WARNING...
.LOW 52N173E 982 MB MOVING E 35 KT. FRONT EXTENDS FROM 54N175E
TO 50N170W. WITHIN 360 NM S AND 420 NM SW...AND 300 NM N AND NW
QUADRANTS WINDS 40 TO 55 KT. SEAS 18 TO 35 FT...EXCEPT 12 TO 23
FT N AND NW QUADRANTS. ELSEWHERE FROM 43N TO 57N BETWEEN 174W
AND 160E...AND WITHIN 180 NM NE OF FRONT WINDS 25 TO 40 KT. SEAS
10 TO 28 FT...HIGHEST S QUADRANT.
.24 HOUR FORECAST LOW 53N165W 979 MB. FROM 43N TO 49N BETWEEN
165W AND 179W WINDS 35 TO 50 KT. SEAS 16 TO 32 FT. ELSEWHERE
FROM 42N TO 56N BETWEEN 177E AND 160W WINDS 25 TO 40 KT. SEAS 10
TO 26 FT.
.48 HOUR FORECAST LOW 54N145W 970 MB. FRONT FROM LOW TO 56N140W
TO 50N130W TO 48N127W. WITHIN 120 NM N OF FRONT FROM 50N TO 54N
WINDS 35 TO 50 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN 120 NM N
AND E OF FRONT E OF 142W WINDS 30 TO 45 KT. SEAS 8 TO 18 FT.
ALSO FROM 37N TO 59N BETWEEN 160W AND 125W WINDS 25 TO 40 KT.
SEAS 9 TO 24 FT.

...GALE WARNING...
.LOW 55N134W 978 MB MOVING N 15 KT. WITHIN 900 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 14 TO 25 FT.
.24 HOUR FORECAST LOW INLAND WITH CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 58N140W 977 MB MOVING NW 10 KT. FROM 55N TO 60N BETWEEN
140W AND 156W WINDS 25 TO 35 KT. SEAS 9 TO 19 FT.
.24 HOUR FORECAST LOW 59N145W 989 MB. WITHIN 480 NM SE QUADRANT
WINDS LESS THAN 25 KT. SEAS 8 TO 11 FT.
.30 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 48N167W 1002 MB MOVING E 45 KT. FRONT FROM LOW TO 40N178E.
 WITHIN 480 NM S AND SE QUADRANTS...AND 300 NM SE OF FRONT WINDS
25 TO 40 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 48N144W 994 MB. FROM 38N TO 45N BETWEEN
136W AND 162W WINDS 25 TO 40 KT. SEAS 12 TO 19 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED ABOVE
WITH LOW 54N145W.

...GALE WARNING...
.OVER FORECAST WATERS N OF 63N W OF 166W WINDS TO 25 KT. SEAS TO
9 FT.
.24 HOUR FORECAST LOW 64N165W 988 MB. WITHIN 180 NM W AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 61N166W 988 MB. WITHIN 300 NM W AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.FROM 31N TO 36N BETWEEN 118W AND 121W AREA OF NW WINDS LESS
THAN 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 32N TO 36N BETWEEN 118W AND 123W AREA OF
NW WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.36 HOUR FORECAST FROM 31N TO 35N BETWEEN 118W AND 123W AREA OF
NW WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST FROM 30N TO 35N BETWEEN 118W AND 124W AREA OF
NW WINDS 20 TO 30 KT. SEAS 9 TO 16 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 38N TO 49N
BETWEEN 162W AND 179W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 45N BETWEEN 124W AND
128W.

.HIGH 36N157W 1033 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 32N154W 1028 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST NEW HIGH 33N130W 1029 MB.

.FORECASTER ROWLAND. 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 1800 UTC THU OCT 19.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 20.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W TO 14W96W
...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30
KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 45 NM EITHER SIDE OF LINE
FROM 16N95W TO 14296W TO 12N98W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN MIXED NE AND SW SWELL.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W
TO 14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 04N W OF 133W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED S
AND SE SWELL. S OF 00N AND W OF 115W WINDS 20 KT OR LESS. SEAS 8
FT IN MIXED SE AND S SWELL.
.24 HOUR FORECAST S OF 05N E OF 120W WINDS 20 KT OR LESS. SEAS 8
FT IN MIXED SE AND S SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST COLD FRONT NORTH OF THE AREA. NW OF LINE FROM
30N137W TO 29N140W WINDS 20 KT OR LESS. SEAS RAPIDLY BUILDING TO
8 TO 10 FT IN NW SWELL.
.12 HOUR FORECAST WEAKENING COLD FRONT FROM 30N134W TO 28N140W.
NW OF COLD FRONT WINDS 20 KT OR LESS. SEAS RAPIDLY BUILDING TO
12 TO 15 FT IN NW SWELL. ELSEWHERE NW OF A LINE FROM 30N131W TO
25N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 30N124W TO 24N140W.
N OF LINE FROM 30N125W TO 24N140W WINDS 20 KT OR LESS. SEAS 12
TO 16 FT IN NW SWELL. ELSEWHERE NW OF LINE FROM 30N120W TO
20N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL. N OF
28N E OF 117W NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FRONT DISSIPATED. N OF 25N BETWEEN 116W AND
130W SEAS 12 TO 16 FT IN NW SWELL. REMAINDER OF THE AREA N OF
LINE FROM 23N110W TO 10N140W WINDS 20 KT OR LESS. SEAS 8 TO 12
FT IN NW SWELL.

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

CONVECTION VALID AT 2030 UTC THU OCT 19...

.TROPICAL WAVE N OF 04N NEAR 89W...SCATTERED MODERATE
ISOLATED STRONG FROM 06N TO 08N BETWEEN 84W AND 90W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N78W TO 10N121W. ITCZ CONTINUES FROM
10N121W TO BEYOND 10N140W. SCATTERED MODERATE WITHIN 60 NM OF
TROUGH FROM 95W TO 110W. SCATTERED MODERATE ISOLATED STRONG
WITHIN 60 NM OF ITCZ W OF 138W.

.FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1800 UTC OCT 19 2017.
24 HOUR FORECAST VALID 1800 UTC OCT 20 2017.
48 HOUR FORECAST VALID 1800 UTC OCT 21 2017.

.WARNINGS.

...GALE WARNING...
.NE TO E WINDS 30 TO 35 KT IN SOME OF THE CHANNELS WITHIN THE
MAIN HAWAIIAN ISLANDS. FOR DETAILS SEE COASTAL WATERS FORECAST
ISSUED BY NWS HONOLULU FORECAST OFFICE UNDER AWIPS HEADER
HFOCWFHFO AND WMO HEADER FZHW50 PHFO.
.24 HOUR FORECAST NE TO E WINDS EASED BELOW GALE FORCE AND
DESCRIBED BELOW.

.SYNOPSIS AND FORECAST.

.ELSEWHERE NE TO E WINDS 20 TO 30 KT FROM 12N TO 27N BETWEEN
150W AND 180W...AND E WINDS 20 TO 25 KT BETWEEN 25N AND 28N W OF
165E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 10N TO 25N
BETWEEN 150W AND 170W. E WINDS 20 TO 25 KT FROM 20N TO 27N E OF
150W.
.48 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

.TROUGH FROM 26N142W TO 16N143W MOVING W SLOWLY. ISOLATED
MODERATE TSTMS FROM 23N TO 26N BETWEEN 142W AND 145W.
.24 HOUR FORECAST TROUGH FROM 25N143W TO 16N145W.
.48 HOUR FORECAST WEAKENING TROUGH FROM 27N147W TO 19N149W.

.SEAS 8 TO 12 FT N OF 10N BETWEEN 150W AND 180E...AND N OF A
LINE FROM 30N140W TO 20N150W. SEAS 8 TO 10 FT S OF 10N BETWEEN
150W AND 180W. SEAS 8 TO 9 FT N OF 25N W OF 165E.
.24 HOUR FORECAST SEAS 12 TO 15 FT N OF 22N E OF 150W. SEAS 8 TO
12 FT ELSEWHERE N OF LINE FROM 16N140W TO 08N160W TO 08N180W TO
12N165E TO 26N160E.
.48 HOUR FORECAST SEAS 8 TO 10 FT N OF A LINE FROM 10N140W TO
05N160W TO 14N160E.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS OVER REST OF FORECAST
AREA.

.ISOLATED MODERATE TO LOCALLY STRONG TSTMS FROM 03N TO 14N E OF
170E...AND FROM 22N TO 28N E OF 168E.

.ITCZ FROM 10N140W TO 09N170E. ISOLATED MODERATE TO LOCALLY
STRONG TSTMS WITHIN 300 NM OF ITCZ BETWEEN 165W AND 180W...AND
ELSEWHERE WITHIN 180 NM OF ITCZ.

$$

.FORECASTER MORRISON. HONOLULU HI.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.