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 252133
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT MAR 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 1800 UTC MAR 25.
24 HOUR FORECAST VALID 1800 UTC MAR 26.
48 HOUR FORECAST VALID 1800 UTC MAR 27.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 41N176E 984 MB MOVING NE 40 KT AND INTENSIFYING. WITHIN 240
NM S AND SE QUADRANTS WINDS 40 TO 55 KT. SEAS 18 TO 26 FT.
ELSEWHERE OVER FORECAST WATERS N OF 30N WITHIN 600 NM SE
QUADRANT...AND FROM 32N TO 41N W OF 176E WINDS 25 TO 40 KT. SEAS
10 TO 19 FT.
.06 HOUR FORECAST LOW 43N176E 979 MB. WITHIN 180 NM SE AND 120
NM SW QUADRANTS WINDS 50 TO 65 KT. SEAS 22 TO 30 FT.
.24 HOUR FORECAST LOW 49N166W 975 MB. WITHIN 180 NM S SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 24 TO 34 FT. ELSEWHERE WITHIN 360 NM SE
AND 240 NM SW QUADRANTS...WITHIN 360 NM N SEMICIRCLE...AND
WITHIN 300 NM E OF A FRONT FROM LOW TO 46N158W TO 34N171W WINDS
25 TO 40 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW 51N165W 981 MB. WITHIN 420 NM N AND 240 NM
W QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. ALSO FROM 52N TO
55N BETWEEN 143W AND 160W...AND WITHIN 480 NM N QUADRANT WINDS
TO 25 KT. SEAS 8 TO 15 FT.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 44N180W 982 MB. OVER FORECAST WATERS
WITHIN 300 NM S AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 20 TO
30 FT. ELSEWHERE WITHIN 660 NM SE AND 840 NM SW QUADRANTS WINDS
25 TO 40 KT. SEAS 11 TO 22 FT...EXCEPT WHERE NOTED ABOVE.
.48 HOUR FORECAST LOW 49N164W 981 MB. WITHIN 420 NM SE AND 360
NM SW QUADRANTS...AND FROM 35N TO 45N BETWEEN 163W AND 179W
WINDS 25 TO 35 KT. SEAS 12 TO 22 FT.

...GALE WARNING...
.LOW 48N148W 987 MB MOVING E 15 KT. WITHIN 240 NM E OF A FRONT
FROM LOW TO 46N140W TO 40N140W TO 34N150W...FROM 34N TO 51N
BETWEEN 140W AND 151W...AND FROM 36N TO 47N BETWEEN 151W AND
165W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT...EXCEPT W OF 155W 12 TO
22 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 49N138W 986 MB
AND NEW SECOND CENTER 52N139W 987 MB. FRONT TO EXTEND FROM FIRST
CENTER TO SECOND CENTER TO 50N130W TO 47N126W TO 40N126W. E OF
137W WITHIN 120 NM E AND NE OF FRONT WINDS 30 TO 45 KT. SEAS 12
TO 17 FT. ALSO WITHIN 300 NM SW SEMICIRCLE OF FIRST CENTER WINDS
30 TO 40 KT. SEAS 14 TO 24 FT. ELSEWHERE FROM 36N TO 57N BETWEEN
124W AND 148W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 59N145W 988
MB. FROM 56N TO 60N E OF 149W...AND WITHIN 120 NM NE OF A FRONT
FROM LOW TO 56N136W TO 50N130W WINDS 20 TO 30 KT. SEAS 8 TO 15
FT.

...GALE WARNING...
.LOW 48N173E 973 MB NEARLY STATIONARY. OVER FORECAST WATERS FROM
38N TO 48N BETWEEN 165W AND 175W WINDS 25 TO 40 KT. SEAS 22 TO
30 FT...EXCEPT WHERE NOTED ABOVE. ELSEWHERE FROM 41N TO 60N W OF
159W WINDS 25 TO 35 KT. SEAS 10 TO 22 FT...EXCEPT N OF 55N SEAS
8 TO 16 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 47N172E 981 MB
AND NEW SECOND CENTER 51N179E 982 MB. OVER FORECAST WATERS FROM
44N TO 48N W OF 175E WINDS 25 TO 40 KT. SEAS 12 TO 20 FT. ALSO N
OF 48N W OF 166E...AND FROM 52N TO 61N W OF 172W WINDS 25 TO 35
KT. SEAS 9 TO 17 FT...EXCEPT WHERE NOTED ABOVE.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 46N179W 993 MB
AND SECOND CENTER 51N171E 993 MB. WITHIN 540 NM SW QUADRANT OF
FIRST CENTER WINDS 25 TO 40 KT. SEAS 12 TO 24 FT. ELSEWHERE N OF
45N W OF 176E WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 52N140W 999 MB. N OF 31N WITHIN 360 NM
E AND SE OF A FRONT FROM LOW TO 48N141W TO 46N147W TO 36N157W
WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.

...GALE WARNING...
.48 HOUR FORECAST OVER FORECAST WATERS W OF A LINE FROM 30N172E
TO 41N162E WINDS 25 TO 40 KT. SEAS 8 TO 12 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 57N169W TO
55N160W TO 61N177W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 56N163W TO 60N178W.
.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.

.OVER FORECAST WATERS FROM 30N TO 32N E OF 118W NW WINDS TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 30N TO 35N E OF 122W AREA OF NW WINDS TO
25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST FROM 30N TO 39N E OF 127W AREA OF NW WINDS 20
TO 30 KT. SEAS TO 12 FT.

.OVER FORECAST WATERS FROM 49N TO 53N E OF 133W AREAS OF WINDS
LESS THAN 25 KT. SEAS TO 12 FT.
.06 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 37N TO 48N
BETWEEN 139W AND 148W...AND WITHIN 120 NM OF 49N161W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 48N BETWEEN 153W AND
158W...AND FROM 31N TO 37N BETWEEN 161W AND 167W.
.48 HOUR FORECAST DENSE FOG FROM 33N TO 50N BETWEEN 142W AND
157W.

.HIGH 30N133W 1028 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH DISSIPATED S OF AREA.

.HIGH 32N163W 1025 MB MOVING E 30 KT.
.24 HOUR FORECAST HIGH 33N148W 1029 MB.
.48 HOUR FORECAST HIGH 35N136W 1031 MB.

.24 HOUR FORECAST NEW HIGH 32N161E 1023 MB.
.48 HOUR FORECAST HIGH 30N179W 1021 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 SAT MAR 25.
24 HOUR FORECAST VALID 1800 UTC SUN MAR 26.
48 HOUR FORECAST VALID 1800 UTC MON MAR 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.DISSIPATING COLD FRONT FROM 30N122W TO 27N140W. W OF LINE
30N126W TO 20N135W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW
SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. WINDS 20 KT OR LESS.
SEAS LESS THAN 8 FT.

.N OF 28N E OF 117W NW WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST N OF 26N BETWEEN 116W AND 125W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN NW SWELL.
.48 HOUR FORECAST N OF 29N E OF 122W NW WINDS 20 TO 25 KT. SEAS
8 TO 9 FT. FROM 24N TO 29N E OF 120W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN N W SWELL. N OF 20N W OF 130W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN NW SWELL.

.FROM 07N TO 19N W OF 130W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO
11 FT. ELSEHWERE FROM 02N TO 20N W OF 120W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.24 HOUR FROM 08N TO 16N W OF 130W NE WINDS 20 TO 25 KT. SEAS 8
TO 9 FT. ELSEWHERE FROM 04N TO 23N W OF 126W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 07N TO 19N W OF 130W NE WINDS 20 TO 25
KT. SEAS 9 TO 11 FT. ELSEWHERE W OF A LINE FROM 20N130W TO
18N121W TO 04N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED
NE AND NW SWELL.

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

CONVECTION VALID AT 2100 UTC SAT MAR 25...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 02N110W TO 02N125W TO 00N140W. SCATTERED MODERATE
WITHIN 60 NM N OF THE ITCZ BETWEEN 123W AND 130W.

$$
.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.