High Seas Forecast
Issued by NWS

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460
FZPN01 KWBC 221718 CCA
HSFEP1

HIGH SEAS FORECAST...CORRECTED FOR FIRST GALE WARNING
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC MON MAY 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 22.
24 HOUR FORECAST VALID 1200 UTC MAY 23.
48 HOUR FORECAST VALID 1200 UTC MAY 24.

.WARNINGS.

...GALE WARNING...
.LOW NW OF AREA 56N168E 988 MB MOVING NE 15 KT. OVER FORECAST
WATERS WITHIN 360 NM E...720 NM SE...AND 420 NM S QUADRANTS
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 61N179E 991 MB. NW OF A LINE FROM 46N164E
TO 51N179E TO 57N171W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 60N176W 996 MB. WITHIN 540 NM SE AND SW
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 52N147W 1013 MB MOVING NE 15 KT. OVER FORECAST WATERS
WITHIN 540 NM NE...600 NM SE...AND 1380 NM SW QUADRANTS WINDS TO
25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 56N139W 1009 MB. WITHIN 420 NM SE AND
W...AND 480 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
ALSO WITHIN 360 NM EITHER SIDE OF A LINE FROM 42N146W TO 30N156W
WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW DISSIPATED. E OF A LINE FROM 44N134W TO
58N139W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.OVER FORECAST WATERS FROM 37N TO 46N BETWEEN 125W AND 130W AREA
OF NW TO N WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST WITHIN 240 NM SE OF A LINE FROM 39N133W TO
46N125W AREA OF NW TO N WINDS 20 TO 30 KT. SEAS TO 11 FT.
.36 HOUR FORECAST FROM 39N TO 43N BETWEEN 124W AND 129W AREA OF
N WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST FROM 39N TO 43N BETWEEN 124W AND 129W AREA OF
N WINDS 25 TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE FROM 34N TO 44N
BETWEEN 124W AND 152W WINDS 20 TO 30 KT. SEAS 8 TO 14
FT...HIGHEST BETWEEN 124W AND 136W.

...GALE WARNING...
.LOW 36N162E 1012 MB MOVING NE 20 KT. WITHIN 540 NM NE AND 420
NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 8 FT.
.18 HOUR FORECAST LOW DISSIPATED. WITHIN 120 NM EITHER SIDE OF A
LINE FROM 41N174E TO 48N177W AREA OF SW WINDS 25 TO 35 KT. SEAS
TO 12 FT.
.24 HOUR FORECAST OVER FORECAST WATERS WITHIN 180 NM EITHER SIDE
OF A LINE FROM 55N157W TO 49N173W TO 35N172E WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT. ALSO FROM 56N TO 61N BETWEEN 161W AND 166W AREA
OF S WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN AN AREA BOUNDED BY 43N172W TO 59N153W
TO 56N146W TO 53N146W TO 43N172W WINDS 20 TO 30 KT. SEAS 8 TO 14
FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 54N168W 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 57N161W 1004 MB MOVING NE 15 KT. WITHIN 480 NM NE AND
W...420 NM SE...600 NM S...AND 360 NM SW QUADRANTS WINDS 20 TO
30 KT...HIGHEST S QUADRANT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED IN
WARNINGS SECTION ABOVE.

.48 HOUR FORECAST OVER FORECAST WATERS FROM 43N TO 51N W OF 166E
AREA OF S TO SE WINDS 20 TO 30 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM
EITHER SIDE OF A LINE FROM 36N164E TO 43N169E TO
48N180W...WITHIN 120 NM OF 40N129W...AND WITHIN AN AREA BOUNDED
BY 38N143W TO 52N146W TO 56N138W TO 54N133W TO 48N134W TO
38N143W.
.24 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY 44N135W TO
50N131W TO 46N127W TO 44N135W...AND WITHIN 420 NM SE OF A LINE
FROM 53N168W TO 38N166E.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
51N164W TO 40N178E...WITHIN 180 NM OF 35N169E...AND OVER
FORECAST WATERS FROM 42N TO 51N W OF 161E.

.HIGH 42N134W 1026 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 41N137W 1027 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 39N172W 1034 MB MOVING NE 15 KT.
.24 HOUR FORECAST HIGH 41N163W 1038 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.24 HOUR FORECAST HIGH 43N161E 1024 MB.
.48 HOUR FORECAST HIGH 44N174E 1035 MB.

.48 HOUR FORECAST NEW HIGH 47N147W 1039 MB.

.FORECASTER FIGURSKEY. 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 MON MAY 22.
24 HOUR FORECAST VALID 1200 UTC TUE MAY 23.
48 HOUR FORECAST VALID 1200 UTC WED MAY 24.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.S OF 02S BETWEEN 100W AND 115W WINDS 20 KT OR LESS. SEAS TO 8
FT IN S SWELL.
.24 HOUR FORECAST S OF 01S BETWEEN 98W AND 120W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN S SWELL.
.48 HOUR FORECAST S OF 01.5S BETWEEN 102W AND 117W WINDS 20 KT
OR LESS. SEAS TO 8 FT IN S SWELL.

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

CONVECTION VALID AT 1400 UTC MON MAY 22...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS W FROM 09N83W THROUGH 1009 MB SURFACE LOW
PRES AT 10N87W TO 1008 MB SURFACE LOW PRES AT 09N100W TO
07N122W. ITCZ FROM 07N122W TO 07N140W. SCATTERED MODERATE
ISOLATED STRONG WITHIN 150 NM OF LINE FROM 04N79W TO 14N95W TO
09N104W AND WITHIN 90 NM OF LINE FROM 07N112W TO 09N122W AND
WITHIN 75 NM OF LINE FROM 08N133W TO 06N140W.

$$

.FORECASTER NELSON. NATIONAL HURRICANE CENTER.



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