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
FZPN01 KWBC 171608
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED SEP 17 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 1200 UTC SEP 17.
24 HOUR FORECAST VALID 1200 UTC SEP 18.
48 HOUR FORECAST VALID 1200 UTC SEP 19.

.WARNINGS.

...STORM WARNING...
.24 HOUR FORECAST LOW W OF FORECAST AREA 39N154E 994 MB WILL
RAPIDLY INTENSIFY AFTER 24 HOURS. FROM 32N TO 47N BETWEEN 165E
AND 160E WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 50N160E 967 MB. OVER FORECAST WATERS
WITHIN 240 NM E AND SE SEMICIRCLES WINDS 40 TO 55 KT. SEAS 16 TO
28 FT. ELSEWHERE N OF 40N W OF 167E...AND WITHIN 300 NM NE AND E
OF A FRONT FROM 50N166E TO 44N173E THEN SW TO 33N160E WINDS 25
TO 40 KT. SEAS 8 TO 18 FT.

...GALE WARNING...
.LOW 50N165W 990 MB MOVING NE 30 KT. WITHIN 420 NM SW QUADRANT
WINDS 25 TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE FROM 40N TO 51N
BETWEEN 154W AND 177W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 56N149W 974 MB. BETWEEN 120 NM AND 540 NM
S AND SW QUADRANTS...AND WITHIN 240 NM N AND NE OF A FRONT FROM
58N148W TO 55N137W TO 50N136W WINDS 30 TO 45 KT. SEAS 10 TO 20
FT. ELSEWHERE WITHIN 660 NM S SEMICIRCLE AND 240 NM NW AND 540
NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 59N146W 983 MB. WITHIN 240 NM N SEMICIRCLE
AND 180 NM SW AND 540 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8
TO 12 FT...EXCEPT SE QUADRANT 10 TO 20 FT.

...GALE WARNING...
.LOW 58N159W 986 MB MOVING E 10 KT. WITHIN 240 NM NE AND E OF A
FRONT FROM 59N153W TO 55N148W TO 48N150W WINDS 25 TO 35 KT. SEAS
TO 12 FT. ELSEWHERE WITHIN 240 NM OF LOW...AND OVER FORECAST
WATERS N OF A LINE FROM 60N168W TO 54N177E WINDS TO 25 KT. SEAS
TO 8 FT.
.24 HOUR FORECAST LOW DISSIPATED. N OF THE ALEUTIAN ISLANDS
BETWEEN 161W AND 178E N TO NW WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST N OF 44N BETWEEN 160W AND 172W N TO NW WINDS
20 TO 30 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MAIN CENTER 40N132W 998 MB MOVING NE 10 KT.
FROM 30N TO 44N BETWEEN 126W AND 140W WINDS 20 TO 30 KT. SEAS TO
12 FT.
.24 HOUR FORECAST LOW 42N127W 1002 MB. WITHIN 180 NM E AND 420
NM W AND SW QUADRANTS WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 36N124W 1010 MB. WINDS LESS THAN 25 KT.
SEAS LESS THAN 8 FT.

.48 HOUR FORECAST NEW LOW 41N153W 1006 MB. FRONT TO EXTEND FROM
46N140W TO THE LOW TO 34N165W. WITHIN 240 NM S AND SE OF THE
FRONT WINDS 20 TO 30 KT. SEAS TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 49N
BETWEEN 158W AND 168W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.DENSE FOG. 48 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 38N TO 43N BETWEEN 174E AND 170E.

.HIGH 35N168W 1022 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH 34N156W 1020 MB.
.48 HOUR FORECAST HIGH 38N138W 1024 MB.

.HIGH 46N167E 1022 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 43N173E 1024 MB.
.48 HOUR FORECAST HIGH 41N176W 1022 MB.

.24 HOUR FORECAST NEW HIGH 32N178E 1020 MB.
.48 HOUR FORECAST HIGH 32N176E 1020 MB.

.FORECASTER COLLINS. 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 1200 UTC WED SEP 17.
24 HOUR FORECAST VALID 1200 UTC THU SEP 18.
48 HOUR FORECAST VALID 1200 UTC FRI SEP 19.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM POLO NEAR 15.7N 102.4W 998 MB AT 1500 UTC SEP 17
MOVING NW OR 315 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NE AND SW
QUADRANTS...50 NM NW QUADRANT AND 70 NM SE QUADRANT. SEAS 12 FT
OR GREATER WITHIN 120 NM W SEMICIRCLE...180 NM NE QUADRANT AND
240 NM SE QUADRANT WITH SEAS TO 22 FT.  ELSEWHERE WITHIN 150 NM
NE...180 NM SE...360 NM SW...AND 90 NM NW QUADRANTS WINDS 20 TO
33 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA FROM 08N TO 19N
BETWEEN 95W AND 107W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW
SWELL.
.24 HOUR FORECAST HURRICANE POLO NEAR 17.5N 105.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM E SEMICIRCLE AND 70 NM W SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 150 NM E AND 90 NM W SEMICIRCLES WITH SEAS TO 28
FT. ELSEWHERE WITHIN 150 NM NW 300 NM SE SEMICIRCLES WINDS 20 TO
33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 11N TO 21N
BETWEEN 98W AND 110W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED
SWELL.
.48 HOUR FORECAST HURRICANE POLO NEAR 18.8N 107.3W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM OF CENTER EXCEPT 80 NM SW QUADRANT. SEAS 12 FT OR
GREATER WITHIN 150 NM SE AND 90 NM NW SEMICIRCLES WITH SEAS TO
30 FT. ELSEWHERE WITHIN 150 NM N AND 210 NM S SEMICIRCLES WINDS
20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 12N TO 23N
BETWEEN 100W AND 113W WINDS 20 KT OR LESS. SEAS TO 10 FT IN
MIXED SWELL.
.72 HOUR FORECAST HURRICANE POLO NEAR 20.0N 109.5W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM POLO NEAR 21.0N 112.0W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT.
.120 HOUR FORECAST TROPICAL STORM POLO NEAR 22.0N 114.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM ODILE NEAR 30.6N 113.3W 997 MB AT 1500 UTC SEP
17 MOVING NE OR 035 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE
QUADRANT...120 NM SE QUADRANT...0 NM SW QUADRANT...AND 60 NM NW
QUADRANT. GULF OF CALIFORNIA WATERS N OF 28N WINDS 20 TO 33 KT.
SEAS TO 10 FT.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW ODILE NEAR 32.7N
111.3W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. SEAS LESS
THAN 8 FT.
.36 HOUR FORECAST ...DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.WEAKENING COLD FRONT FROM 30N132W TO 25N140W. NW OF LINE FROM
30N130W TO 25N140W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
SW AND NW SWELL.
.24 HOUR FORECAST FRONTAL TROUGH FROM 30N128W TO 24N140W. W OF
TROUGH WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.36 HOUR FORECAST TROUGH DISSIPATED. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

CONVECTION VALID 1500 UTC WED SEP 17...

.TROPICAL STORM POLO...NUMEROUS MODERATE SCATTERED STRONG WITHIN
150 NM E AND 90 NM W SEMICIRCLES. SCATTERED MODERATE ISOLATED
STRONG ELSEWHERE WITHIN 240 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 07N78W TO 09N87W TO 10N96W...RESUMES FROM
13N107W TO 13N114W TO 11N124W. ITCZ FROM 11N124W TO 14N135W TO
LOW PRES NEAR 12N140W 1011 MB. SCATTERED MODERATE ISOLATED
STRONG WITHIN 30 NM N AND 120 NM S OF TROUGH BETWEEN 107W AND
120W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.


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