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 251534
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT FEB 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1200 UTC FEB 25.
24 HOUR FORECAST VALID 1200 UTC FEB 26.
48 HOUR FORECAST VALID 1200 UTC FEB 27.

.WARNINGS.

...STORM WARNING...
.LOW JUST NW OF FORECAST AREA 60N171E 978 MB MOVING NE 25 KT.
FRONT EXTENDS FROM 60N174W TO 50N180W TO 40N171E. OVER FORECAST
WATERS WITHIN 360 NM SE QUADRANT AND FROM 51N TO 59N WITHIN 180
NM E OF FRONT WINDS 40 TO 50 KT. SEAS 21 TO 33 FT. ALSO WITHIN
720 NM E AND 540 NM S QUADRANTS AND WITHIN 300 NM E OF FRONT N
OF 42N WINDS 25 TO 40 KT. SEAS IN ICE FREE WATERS 13 TO 24 FT.
ELSEWHERE N OF A LINE FROM 56N164W TO 50N170W TO 45N160E AND
WITHIN 360 NM E OF FRONT WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW NW OF FORECAST AREA 66N175E 1006 MB. FRONT
TO EXTEND FROM 58N170W TO 50N180W TO 44N176E. WITHIN 300 NM SE
QUADRANT AND WITHIN 120 NM SE OF FRONT WINDS 25 TO 35 KT. SEAS
12 TO 21 FT. ELSEWHERE N OF A LINE FROM 61N165W TO 53N168E AND
WITHIN 300 NM SE OF FRONT WINDS TO 25 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW N OF AREA. N AND W OF A LINE FROM 61N165W
TO 57N173W AREA OF W TO NW WINDS TO 25 KT. SEAS 8 TO 13 FT.

...STORM WARNING...
.48 HOUR FORECAST LOW 49N161E 1002 MB. OVER FORECAST WATERS
WITHIN 120 NM SE AND E SEMICIRCLES WINDS 35 TO 50 KT. SEAS 13 TO
20 FT. ELSEWHERE FROM 39N TO 51N W OF 165E WINDS 25 TO 40 KT.
SEAS 9 TO 15 FT.

...GALE WARNING...
.LOW 34N145W 1007 MB MOVING E 10 KT. FROM 36N TO 40N BETWEEN
140W AND 149W WINDS 35 TO 45 KT. SEAS 12 TO 22 FT. ALSO FROM 35N
TO 41N BETWEEN 139W AND 150W AND WITHIN 300 NM NW QUADRANT WINDS
25 TO 35 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 34N142W 1014 MB. WITHIN 300 NM N AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. ALSO WITHIN 600 NM
NE QUADRANT AND FROM 34N TO 44N BETWEEN 143W AND 157W WINDS 20
TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 30N138W 1016 MB. WITHIN 240 NM N AND 540
MNM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 34N162W 1014 MB MOVING SW 10 KT. FROM 35N TO 40N BETWEEN
160W AND 169W WINDS 25 TO 40 KT. SEAS 10 TO 17 FT. ALSO WITHIN
480 NM E AND NE AND 600 NM NW QUADRANTS AND ALSO WITHIN 240 NM S
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 32N164W 1012 MB. BETWEEN 120 NM AND 420 NM
N QUADRANT WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. ALSO FROM 30N TO
43N BETWEEN 157W AND 171W WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW 35N168W 1012 MB. BETWEEN 120 NM AND 360 NM
NE AND N QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 18 FT. ALSO
WITHIN 660 NM E AND 540 NM N AND NW QUADRANTS WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.

...GALE WARNING...
.LOW 58N138W 1018 MB MOVING SE 30 KT. FROM 57N TO 60N BETWEEN
145W AND 152W WINDS 25 TO 40 KT. SEAS 9 TO 15 FT. ALSO WITHIN
420 NM S AND SW QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 48N125W 1005 MB. WITHIN 360 NM W QUADRANT
WINDS 25 TO 35 KT. SEAS 12 TO 18 FT. ALSO WITHIN 360 NM NW...660
NM W AND 360 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 48N125W 1007 MB. FROM 40N TO 56N E OF 140W
AND WITHIN 360 NM SW OF A LINE FROM 59N150W TO 52N135W WINDS 20
TO 30 KT. SEAS 9 TO 15 FT.

...GALE WARNING...
.LOW 41N128W 1018 MB MOVING SE 20 KT. FROM 40N TO 51N BETWEEN
128W AND 142W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 34N122W 1014 MB. WITHIN 180 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 31N120W 1012 MB. OVER FORECAST WATERS
WITHIN 240 NM SW QUADRANT WINDS TO 25 KT. SEAS TO 8 FT.

...GALE WARNING...
.LOW 34N163E 1015 MB MOVING NE 20 KT. OVER FORECAST WATERS FROM
30N TO 36N W OF 176E WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW 35N170E 1016 MB. FRONT TO EXTEND FROM
43N174E TO LOW CENTER. WITHIN 360 NM NW AND 180 NM SE
SEMICIRCLES AND WITHIN 240 NM E OF FRONT WINDS 20 TO 30 KT. SEAS
8 TO 13 FT.
.48 HOUR FORECAST LOW 42N172E 1008 MB. WITHIN 240 NM NE AND E
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.24 HOUR FORECAST OVER FORECAST WATERS N OF 55N BETWEEN 147W AND
157W AREA OF W TO NW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.30 HOUR FORECAST N OF 57N BETWEEN 148W AND 153W AREA OF W TO NW
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 54N168W IS IN A STATE OF UNREST. MARINERS
TRAVELING IN THE VICINITY OF THE VOLCANO ARE URGED TO EXERCISE
CAUTION. IF MARINERS ENCOUNTER ANY VOLCANIC ASH...REPORT THE
OBSERVATION TO THE OCEAN PREDICTION CENTER BY CALLING
301-683-1520.

.48 HOUR FORECAST EXCEPT WHERE NOTED IN WARNINGS SECTION OVER
FORECAST WATERS W OF A LINE FROM 55N171E TO 52N173W TO 40N178E
TO 34N177E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM SE OF
A LINE FROM 51N179E TO 43N173E.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM SE OF A LINE FROM
51N178W TO 40N171E.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM SE OF A LINE FROM
49N179W TO 42N171E.

.HIGH 33N125W 1024 MB MOVING SW 20 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.HIGH 52N158W 1045 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 49N156W 1045 MB.
.48 HOUR FORECAST HIGH 47N156W 1040 MB.

.HIGH 43N166E 1021 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH 48N173E 1030 MB.
.48 HOUR FORECAST HIGH 57N179E 1040 MB.

.FORECASTER NOLT. 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 SAT FEB 25.
24 HOUR FORECAST VALID 1200 UTC SUN FEB 26.
48 HOUR FORECAST VALID 1200 UTC MON FEB 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N137W TO 22N140W. WITHIN AREA BOUNDED BY
27N134W TO 26N137W TO 30N137W TO 30N132W TO 27N134W S WINDS 20 TO
25 KT. SEAS 9 TO 11 FT IN MIXED SW AND NW SWELL. ELSEWHERE
WITHIN AREA BOUNDED BY 18N131W TO 14N140W TO 30N140W TO 30N137W
TO 26N136W TO 30N131W TO 18N131W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN MIXED SE AND NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 30N132W TO 27N135W
THEN STATIONARY TO 20N140W. WITHIN AREA BOUNDED BY 10N128W TO
10N140W TO 30N140W TO 29N136W TO 20N135W TO 17N130W TO 10N128W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST WEAK COLD FRONT FROM 30N124W TO 25N135W THEN
STATIONARY TO 20N139W. WITHIN AREA BOUNDED BY 06N126W TO
05N131W TO 10N140W TO 17N140W TO 16N131W TO 13N126W TO 06N126W
WINDS 20 KT OR LESS. SEAS 8 FT PRIMARILY IN NW SWELL.

.FROM 22N TO 27N BETWEEN 108W AND 111W...INCLUDING THE GULF OF
CALIFORNIA...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.21 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST GULF OF PAPAGAYO FROM 10.5N TO 11.5N E OF 88W
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 1500 UTC SAT FEB 25...

.SURFACE TROUGH FROM 00N88W TO 00N100W TO 00N116W...SCATTERED
MODERATE S OF TROUGH BETWEEN 94W AND 99W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
NO ITCZ OR MONSOON TROUGH CURRENTLY OVER THE FORECAST WATERS.

$$
.FORECASTER LEWITSKY. 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.