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
168
FZPN01 KWBC 201103 CCB
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC FRI JAN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

SECURITE

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

SYNOPSIS VALID 0600 UTC JAN 20.
24 HOUR FORECAST VALID 0600 UTC JAN 21.
48 HOUR FORECAST VALID 0600 UTC JAN 22.

.WARNINGS.

...STORM WARNING...
.LOW 46N142W 976 MB MOVING E 25 KT NEXT 12 HOURS THEN SLOWING
AND AFTER 24 HOURS MOVING NW 20 KT. FROM 38N TO 44N BETWEEN 137W
AND 143W AND BETWEEN 60 NM AND 420 NM SW QUADRANT WINDS 40 TO 55
KT. SEAS 24 TO 42 FT. ELSEWHERE WITHIN 300 NM N...600 NM W AND
SW AND 960 NM SE QUADRANTS N OF 32N WINDS 25 TO 40 KT. SEAS 15
TO 32 FT...HIGHEST S AND SW OF LOW. ALSO E OF A LINE FROM
53N148W TO 51N159W TO 45N160W TO 30N143W AND W OF 123W WINDS 20
TO 30 KT. SEAS 11 TO 26 FT.
.24 HOUR FORECAST LOW 46N131W 976 MB. FROM 39N TO 44N BETWEEN
130W AND 135W WINDS 40 TO 50 KT. SEAS 27 TO 39 FT. ELSEWHERE
WITHIN 420 NM W QUADRANT AND E OF A LINE FROM 42N139W TO 30N127W
 WINDS 25 TO 40 KT. SEAS 18 TO 36 FT...EXCEPT E OF 120W 11 TO 18
FT...HIGHEST IN S QUADRANT.
.48 HOUR FORECAST LOW 50N138W 982 MB. EXCEPT WHERE NOTED WITH
LOW 42N131W BELOW...BETWEEN 180 NM AND 360 NM E QUADRANT AND
WITHIN 360 NM W AND 480 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS
11 TO 24 FT...HIGHEST IN SW QUADRANT.

...STORM WARNING...
.LOW W OF FORECAST AREA 45N157E 990 MB MOVING NE 20 KT. OVER
FORECAST WATERS W OF A LINE FROM 48N165E TO 41N169E TO 32N164E
WINDS 30 TO 40 KT. SEAS 9 TO 19 FT. ELSEWHERE FROM 30N TO 49N W
OF 171E WINDS 20 TO 30 KT. SEAS TO 11 FT.
.12 HOUR FORECAST LOW 47N163E 990 MB. WITHIN 180 NM NW
SEMICIRCLE AND S QUADRANT WINDS 35 TO 50 KT. SEAS 13 TO 21 FT.
ELSEWHERE FROM 42N TO 50N W OF 177E WINDS 25 TO 35 KT. SEAS 8 TO
16 FT.
.24 HOUR FORECAST LOW 49N169E 995 MB. FRONT TO EXTEND FROM LOW
TO 50N173E TO 44N179E. BETWEEN 90 NM AND 240 NM N SEMICIRCLE AND
WITHIN 180 NM NE AND E OF FRONT WINDS 25 TO 40 KT. SEAS 8 TO 16
FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
46N174E DESCRIBED BELOW.

...STORM WARNING...
.12 HOUR FORECAST LOW W OF AREA 39N165E 1008 MB. FRONT TO EXTEND
FROM 42N172E TO LOW CENTER TO 35N160E. WITHIN 180 NM SE AND S OF
FRONT WINDS 35 TO 45 KT. SEAS 13 TO 23 FT. ELSEWHERE WITHIN 300
NM E...SE AND S OF FRONT WINDS 25 TO 35 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST LOW ABSORBED BY A SECOND LOW W OF AREA 36N155E
986 MB. FRONT TO EXTEND FROM LOW TO 38N160E TO 44N179E. WITHIN
180 NM SE AND S OF FRONT WINDS 35 TO 45 KT. SEAS 17 TO 25 FT.
ELSEWHERE WITHIN 360 NM E...SE AND S OF FRONT WINDS 25 TO 40 KT.
SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW 46N174E 963 MB. BETWEEN 180 NM AND 780 NM
S QUADRANT AND BETWEEN 240 NM AND 600 NM SE QUADRANT WINDS 40 TO
55 KT. SEAS 22 TO 34 FT. ELSEWHERE OVER FORECAST WATERS W OF A
LINE FROM 54N175W TO 47N161W TO 42N160W TO 30N180W WINDS 30 TO
45 KT. SEAS 10 TO 21 FT...EXCEPT S OF 45N W OF 170W 15 TO 24 FT.

...STORM WARNING...
.LOW 40N164W 1013 MB MOVING E 40 KT NEXT 36 HOURS THEN TURNING
MORE NE AND SLOWING WHILE RAPIDLY INTENSIFYING. WITHIN 300 NM SW
QUADRANT WINDS 25 TO 35 KT. SEAS 11 TO 16 FT. ELSEWHERE WITHIN
720 NM W...600 NM SW AND 360 NM S QUADRANTS WINDS 20 TO 30 KT.
SEAS 9 TO 14 FT.
.24 HOUR FORECAST LOW 40N143W 1000 MB. FROM 30N TO 41N BETWEEN
143W AND 158W WINDS 25 TO 40 KT. SEAS 12 TO 19 FT.
.48 HOUR FORECAST LOW 42N131W 966 MB. WITHIN 150 NM OF LOW
EXCEPT W QUADRANT WINDS 45 TO 60 KT. SEAS 17 TO 26 FT. ELSEWHERE
FROM 33N TO 45N BETWEEN 124W AND 150W WINDS 30 TO 45 KT. SEAS 14
TO 23 FT.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 46N145W 985 MB. WITHIN 240 NM SW
QUADRANT WINDS 40 TO 50 KT. SEAS 18 TO 31 FT. ELSEWHERE WITHIN
300 NM S AND 420 NM SW AND W QUADRANTS WINDS 25 TO 40 KT. SEAS
12 TO 21 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
42N131W ABOVE.

...GALE WARNING...
.LOW INLAND NEAR 61N162W 983 MB MOVING E 15 KT THEN TURNING SE
AFTER 12 HOURS. OVER FORECAST WATERS WITHIN 300 NM W AND 180 NM
S QUADRANTS WINDS 25 TO 40 KT. SEAS IN ICE FREE WATERS 8 TO 15
FT. ELSEWHERE N OF A LINE FROM 45N159W TO 45N178E WINDS 20 TO 30
KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 59N151W 997 MB. WITHIN 300 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 60N148W 998 MB. FROM 56N TO 60N BETWEEN
150W AND 157W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF A LINE FROM 57N163W TO 56N170W TO 60N179W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 56N158W TO 57N166W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 58N151W TO 57N155W TO 61N178W.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53N168W IS IN A STATE OF UNREST. MARINERS
TRAVELING IN THE VICINITY OF BOGOSLOF 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.

.LOW 58N137W 988 MB MOVING SE 15 KT. OVER FORECAST WATERS WITHIN
300 NM W AND 240 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16
FT.
.24 HOUR FORECAST LOW DISSIPATED. WINDS LESS THAN 25 KT. SEAS TO
9 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.EXCEPT AS DESCRIBED IN WARNINGS SECTION ABOVE LIGHT TO MODERATE
FREEZING SPRAY OVER FORECAST WATERS N OF A LINE FROM 50N172E TO
53N170W TO 56N160W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 58N151W TO 53N160W TO 54N170W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 55N150W TO 54N157W TO 58N178E.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
WITHIN 180 NM SE OF A LINE FROM 46N179E TO 40N16EW.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 49N BETWEEN 164W AND
175E.

.HIGH 34N178E 1032 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 35N171W 1036 MB.
.48 HOUR FORECAST HIGH 33N160W 1033 MB.

.HIGH 55N150W 1002 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.FORECASTER BANCROFT. 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 FRI JAN 20.
24 HOUR FORECAST VALID 0600 UTC SAT JAN 21.
48 HOUR FORECAST VALID 0600 UTC SUN JAN 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 29.5N115.5W TO 28N117W. W OF LINE 30N115.5W TO
25N122W TO 20N136W TO 16N138W WINDS 20 KT OR LESS. SEAS 8 TO 16
FT IN NW SWELL...HIGHEST NW PART.
.06 HOUR FORECAST COLD FRONT INLAND. N OF 28N BETWEEN 124W AND
132W SW TO W WINDS 20 TO 25 KT. SEAS 14 TO 16 FT. ELSEWHERE W OF
LINE FROM 30N115.5W TO 27N115W TO 18N134W TO 13N134W TO 11N128W
TO 07N138W WINDS 20 KT OR LESS. SEAS 8 TO 16 FT...PRIMARILY IN
NW SWELL.
.24 HOUR FORECAST NEW COLD FRONT FROM 30N117W TO 25N128W. N OF
26N E OF FRONT SW TO W WINDS 20 TO 30 KT. SEAS 11 TO 15 FT. W OF
FRONT AND E OF LINE FROM 27N121W TO 30N127W W TO NW WINDS 20 TO
25 KT. SEAS 14 TO 22 FT IN NW SWELL. ELSEWHERE N OF LINE FROM
23N113W TO 11N128W TO 05N140W WINDS 20 KT OR LESS. SEAS 8 TO 23
FT IN NW SWELL...HIGHEST NEAR 30N134W.
.48 HOUR FORECAST COLD FRONT DISSIPATED. NEW COLD FRONT FROM
30N129W TO 26N135W TO 23N140W. N OF 27N E OF FRONT TO 123W S TO
SW WINDS 20 TO 30 KT. SEAS 17 TO 21 FT IN NW SWELL. W OF FRONT
NW WINDS 20 TO 30 KT. SEAS 12 TO 22 FT IN NW SWELL...HIGHEST NW
PART. OUTSIDE GULF OF CALIFORNIA N OF LINE FROM 15N108W TO
05N126W TO 05N140W WINDS 20 KT OR LESS. SEAS 8 TO 23 FT IN NW
SWELL...HIGHEST NW PART AND NEAR 30N120W.

.FROM 09N TO 11N W OF 133W NE WINDS 20 TO 25 KT. SEAS 9 TO 10
FT. ELSEWHERE W OF A LINE FROM 15N137W TO 12N127W TO 07N137W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.06 HOUR FORECAST CONDITIONS MERGED WITH PARAGRAPH ABOVE.

.GULF OF CALIFORNIA COLD FRONT FROM 31.5N114W TO 30.5N114.5W. N
OF 29N SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA COLD FRONT INLAND. NEW COLD
FRONT ENTERING NORTHERN GULF. N OF 29N SW TO W WINDS 20 TO 30
KT. SEAS TO 9 FT.
.48 HOUR FORECAST COLD FRONT 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 AT 0900 UTC FRI JAN 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 04N91W TO 05N101W TO 04N113W TO 07N135W TO 07N140W. NO
SIGNIFICANT CONVECTION.

$$
.FORECASTER MCELROY. 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.