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 262146
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SUN MAR 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAR 26.
24 HOUR FORECAST VALID 1800 UTC MAR 27.
48 HOUR FORECAST VALID 1800 UTC MAR 28.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MEAN CENTER NEAR 50N138W 987 MB MOVING N 20
KT. FRONT EXTENDS FROM 53N140W TO 50N129W TO 45N126W TO 39N126W.
FROM 49N TO 53N WITHIN 90 NM E AND NE OF FRONT WINDS 40 TO 50
KT. SEAS 15 TO 21 FT. ELSEWHERE FROM 36N TO 56N BETWEEN 124W AND
147W WINDS 25 TO 40 KT. SEAS 11 TO 21 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 58N143W 992
MB. OVER FORECAST WATERS NE OF A LINE FROM 59N149W TO 51N130W
WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.
.48 HOUR FORECAST LOW MOVED INLAND AND CONDITIONS DESCRIBED
BELOW WITH LOW 54N148W.

...STORM WARNING...
.LOW 49N167W 975 MB DRIFTING NW. BETWEEN 60 NM AND 240 NM S
SEMICIRCLE WINDS 40 TO 55 KT. SEAS 20 TO 30 FT. ALSO WITHIN 360
NM OF LOW WINDS 25 TO 40 KT. SEAS 12 TO 24 FT. ELSEWHERE FROM
52N TO 60N BETWEEN 164W AND 177W...AND N OF 33N WITHIN 300 NM E
AND SE OF FRONT FROM LOW TO 45N157W TO 33N174W WINDS 25 TO 35
KT. SEAS 11 TO 20 FT...EXCEPT N OF THE ALEUTIAN ISLANDS 8 TO 14
FT.
.24 HOUR FORECAST LOW 50N169W 980 MB. WITHIN 300 NM S...240 NM
W...AND 420 NM N QUADRANTS...AND FROM 53N TO 55N BETWEEN 155W
AND 165W WINDS 25 TO 35 KT. SEAS 12 TO 18 FT...EXCEPT N OF THE
ALEUTIAN ISLANDS SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 48N167W 992 MB. FROM 41N TO 48N BETWEEN
152W AND 171W WINDS 25 TO 35 KT. SEAS 12 TO 19 FT. ALSO WITHIN
360 NM N QUADRANT WINDS TO 25 KT. SEAS TO 12 FT.

...STORM WARNING...
.12 HOUR FORECAST COMPLEX LOW WELL W OF AREA WITH MAIN CENTER
35N143E 987 MB. OVER FORECAST WATERS W OF A LINE FROM 30N164E TO
35N160E WINDS 25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW W OF AREA 35N151E 979 MB. W OF A LINE FROM
30N172E TO 33N173E TO 40N162E WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST LOW 36N160E 979 MB. BETWEEN 60 NM AND 300 NM
SE QUADRANT WINDS 45 TO 55 KT. SEAS 22 TO 32 FT.
.48 HOUR FORECAST LOW 40N170E 972 MB. BETWEEN 180 NM AND 480 NM
S QUADRANT WINDS 50 TO 60 KT. SEAS 24 TO 36 FT. ELSEWHERE FROM
30N TO 37N BETWEEN 176E AND 164E...AND BETWEEN 120 NM AND 300 NM
W QUADRANT WINDS 40 TO 50 KT. SEAS 18 TO 30 FT. ALSO W OF A LINE
FROM 30N176W TO 35N169W TO 45N178E WINDS 25 TO 40 KT. SEAS 12 TO
24 FT.

...GALE WARNING...
.LOW 44N180W 986 MB MOVING NE 30 KT. OVER FORECAST WATERS
BETWEEN 90 NM AND 300 NM S QUADRANT WINDS 35 TO 45 KT. SEAS 20
TO 28 FT. ELSEWHERE WITHIN 600 NM SE AND 780 NM SW QUADRANTS
WINDS 25 TO 40 KT. SEAS 11 TO 22 FT...EXCEPT WHERE NOTED ABOVE.
.24 HOUR FORECAST LOW 48N162W 984 MB. WITHIN 360 NM SE
QUADRANT...AND FROM 35N TO 45N BETWEEN 162W AND 175W WINDS 25 TO
40 KT. SEAS 12 TO 22 FT.
.48 HOUR FORECAST LOW 54N147W 993 MB. WITHIN 300 NM SE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 9 TO 16 FT. ELSEWHERE FROM
49N TO 56N BETWEEN 133W AND 150W WINDS LESS THAN 25 KT. SEAS 8
TO 15 FT.

...GALE WARNING...
.LOW 52N177E 984 MB MOVING SW 15 KT. OVER FORECAST WATERS FROM
52N TO 60N BETWEEN 177W AND 177E WINDS 20 TO 30 KT. SEAS 8 TO 16
FT.
.24 HOUR FORECAST LOW 49N167E 993 MB. EXCEPT WHERE NOTED
BELOW...OVER FORECAST WATERS N OF 44N W OF 173E WINDS 20 TO 30
KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 48N163E 990 MB. N OF 45N WITHIN 240 NM SW
QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ALSO FROM 49N TO
53N W OF 175E WINDS TO 25 KT. SEAS TO 9 FT.

...GALE WARNING...
.LOW 48N173E 981 MB MOVING SE 10 KT. OVER FORECAST WATERS FROM
44N TO 48N W OF 177E...AND N OF 48N W OF 167E WINDS 25 TO 35 KT.
SEAS 11 TO 18 FT.
.24 HOUR FORECAST LOW 46N178E 990 MB. WITHIN 480 NM SW
QUADRANT...AND FROM 36N TO 46N BETWEEN 175W AND 178E WINDS 25 TO
40 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DESCRIBED ABOVE
WITH LOW 50N169W.

...GALE WARNING...
.FROM 31N TO 35N BETWEEN 119W AND 121W AREA OF NW WINDS TO 25
KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 30N TO 39N E OF 126W AREA OF NW WINDS 20
TO 30 KT. SEAS TO 11 FT.
.36 HOUR FORECAST FROM 30N TO 39N BETWEEN 118W AND 124W AREA OF
NW WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST FROM 30N TO 40N E OF 126W AREA OF N TO NW
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 49N144W 997 MB. WITHIN 360 NM E AND
480 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 19 FT.
.48 HOUR FORECAST LOW MOVED INLAND AND CONDITIONS DESCRIBED
ABOVE WITH LOW 54N147W.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 42N148W 1009 MB. N OF 32N WITHIN 360
NM E AND SE OF A FRONT FROM LOW TO 33N159W WINDS 25 TO 35 KT.
SEAS 10 TO 16 FT...EXCEPT WHERE NOTED ABOVE.
.48 HOUR FORECAST LOW 42N141W 1012 MB. WITHIN 420 NM SE AND S
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.

.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.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 50N
BETWEEN 154W AND 158W...FROM 50N TO 52N BETWEEN 164W AND
171W...AND FROM 30N TO 35N BETWEEN 163W AND 170W.
.24 HOUR FORECAST DENSE FOG WITHIN 420 NM E OF A LINE FROM
51N144W TO 33N160W.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM SE OF A LINE FROM
47N131W TO 35N148W...FROM 41N TO 49N BETWEEN 141W AND 149W...AND
FROM 30N TO 40N BETWEEN 176W AND 178E.

.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE WATERS N OF A
LINE FROM 57N170W TO 60N178W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 56N168W TO 60N178W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 56N166W TO 60N178W.

.HIGH 34N148W 1028 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH 35N136W 1031 MB.
.48 HOUR FORECAST HIGH 34N131W 1031 MB.

.HIGH 32N164E 1022 MB MOVING E 35 KT.
.24 HOUR FORECAST HIGH 31N180W 1020 MB.
.48 HOUR FORECAST HIGH 34N158W 1023 MB.

.FORECASTER KELLS. 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 SUN MAR 26.
24 HOUR FORECAST VALID 1800 UTC MON MAR 27.
48 HOUR FORECAST VALID 1800 UTC TUE MAR 28.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.E OF 125W AND N OF A LINE FROM 30N116W TO 25N125W WINDS 20 KT
OR LESS. SEAS TO 9 FT IN NW SWELL.
.24 HOUR FORECAST N OF 27N E OF 120W...AND N OF 29N BETWEEN 120W
AND 125W NW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT E OF 121W.
ELSEWHERE N OF 24N E OF 121W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN NW SWELL.
.48 HOUR FORECAST N OF 26N E OF 125W NW WINDS 20 TO 25 KT. SEAS
9 TO 13 FT.

.FROM 08N TO 20N W OF 130W...AND FROM 10N TO 18N BETWEEN 125W
AND 130W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEHWHERE
FROM 03N TO 23N W OF 125W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED NE AND NW SWELL.
.24 HOUR FROM 07N TO 18N W OF 130W NE TO E WINDS 20 TO 25 KT.
SEAS 9 TO 11 FT. ELSEWHERE W OF LINE FROM 30N128W TO 25N132W TO
17N122W TO 05N130W TO 03N140W WINDS 20 KT OR LESS. SEAS 8 TO 11
FT IN MIXED NE AND NW SWELL...HIGHEST NW.
.48 HOUR FORECAST FROM 09N TO 21N W OF 130W NE TO E WINDS 20 TO
25 KT. SEAS 8 T0 11 FT. ELSEWHERE W OF LINE FROM 30N116W TO
20N112W TO 01N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
NE AND NW SWELL.

.GULF OF CALIFORNIA 42 HOUR FORECAST N OF 30N NW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2100 UTC SUN MAR 26...

SCATTERED MODERATE FROM 02N TO 05N BETWEEN 87W AND 92W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 03N121W TO 01N140W. SCATTERED MODERATE WITHIN 120 NM N
OF ITCZ BETWEEN 127W AND 135W.

$$
.FORECASTER GR. 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.