High Seas Forecast
Issued by NWS

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167
FZPN01 KWBC 212218
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI JUL 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 21.
24 HOUR FORECAST VALID 1800 UTC JUL 22.
48 HOUR FORECAST VALID 1800 UTC JUL 23.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM KULAP NEAR 30.4N 175.0E AT 1800 UTC JUL 21
MOVING NW OR 320 DEG AT 24 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE...110
NM SE...70 NM SW AND 125 NM NW QUADRANTS. SEAS 12 FT OR GREATER
WITHIN 270 NM NE...210 NM SE...300 NM SW AND 240 NM NW QUADRANTS
WITH SEAS TO 18 FT.
.24 HOUR FORECAST TROPICAL STORM KULAP NEAR 32.3N 167.9E.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 215 NM NE...95 NM SE...75 NM SW AND 170 NM NW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 360 NM N
SEMICIRCLE...180 NM SE AND 210 NM SW QUADRANTS WITH SEAS TO 20
FT.
.48 HOUR FORECAST TROPICAL STORM KULAP NEAR 33.1N 162.8E.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 125 NM NE...100 NM SE...30 NM SW AND 110 NM NW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 270 NM NE...150 NM
SE...180 NM SW AND 300 NM NW QUADRANTS WITH SEAS TO 17 FT.
.72 HOUR FORECAST TROPICAL DEPRESSION KULAP NEAR 33.8N 160.1E.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION KULAP W OF AREA.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 52N145W 1000 MB MOVING NE 15 KT.
WITHIN 120 NM OF THE W COAST FROM 50N TO 56N AREA OF SE WINDS 25
TO 35 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 360 NM S AND 720 NM SE
QUADRANTS...BETWEEN 420 NM AND 540 NM W QUADRANT AND BETWEEN 240
NM AND 420 NM N QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 55N140W 1006 MB. WITHIN 300 NM S AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.36 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.

...GALE WARNING...
.FROM 30N TO 40N BETWEEN 119W AND 125W AREA OF N TO NW WINDS 20
TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 32N TO 43N BETWEEN 121W AND 127W AREA OF
N TO NW WINDS 20 TO 30 KT. SEAS TO 10 FT.
.36 HOUR FORECAST FROM 39N TO 43N BETWEEN 124W AND 126W AREA OF
N TO NW WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.
.48 HOUR FORECAST FROM 39N TO 43N BETWEEN 124W AND 128W AREA OF
N WINDS 25 TO 35 KT. SEAS 10 TO 16 FT. ELSEWHERE E OF A LINE
FROM 49N126W TO 39N132W TO 32N131W AND W OF 123W WINDS 20 TO 30
KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53.92N 168.03W 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.

.ELSEWHERE EXCEPT WHERE NOTED WITH TROPICAL STORM KULAP IN
WARNINGS SECTION OVER FORECAST WATERS WITHIN 420 NM OF KULAP
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST EXCEPT WHERE NOTED WITH TROPICAL STORM KULAP
IN WARNINGS SECTION...FROM 30N TO 38N W OF 177E WINDS 20 TO 33
KT. SEAS TO 12 FT.
.48 HOUR FORECAST EXCEPT WHERE NOTED WITH TROPICAL STORM KULAP
IN WARNINGS SECTION...FROM 30N TO 40N W OF 171E WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.

.TROPICAL STORM NORU SW OF AREA. OVER FORECAST WATERS FROM 30N
TO 36N W OF 163E AREA OF E WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST CONDITIONS MOVED W OF AREA.

.LOW 45N159W 1010 MB MOVING E 15 KT THEN TURNING NE AFTER 18
HOURS. FROM 40N TO 45N BETWEEN 151W AND 165W WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST LOW 46N152W 1013 MB. FRONT TO EXTEND FROM LOW
TO 38N167W. WITHIN 180 NM SE OF FRONT S OF 44N WINDS TO 25 KT.
SEAS TO 8 FT.
.48 HOUR FORECAST LOW 49N144W 1019 MB. CONDITIONS DIMINISHED.

.36 HOUR FORECAST OVER FORECAST WATERS N OF A LINE FROM 49N161E
TO 54N180W TO 65N168W AREA OF S TO SW WINDS 20 TO 30 KT. SEAS TO
9 FT.
.48 HOUR FORECAST N OF A LINE FROM 54N179E TO 57N170W TO 60N164W
AREA OF S TO SW WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST NEW LOW 41N160W 1016 MB. WITHIN 240 NM SE
SEMICIRCLE WINDS TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 36N TO 41N
BETWEEN 126W AND 131W AND WITHIN 240 NM SE OF A LINE FROM
50N129W TO 46N135W TO 44N155W AND WITHIN 120 NM OF 55N146W AND
OVER FORECAST WATERS W OF A LINE FROM 60N172W TO 50N180W TO
40N174W.
.24 HOUR FORECAST DENSE FOG E OF A LINE FROM 49N125W TO 40N135W
TO 36N127W AND W OF 124W...FROM 40N TO 45N BETWEEN 139W AND
156W...WITHIN 180 NM SE OF A LINE FROM 55N146W TO 52N160W...
WITHIN 180 NM OF 58N172W AND FROM 40N TO 57N W OF 180W.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
49N142W TO 43N157W...FROM 50N TO 53N BETWEEN 151W AND 159W AND W
OF A LINE FROM 61N170W TO 439163E.

.HIGH 42N171E 1030 MB DRIFTING NW 05 KT.
.24 HOUR FORECAST HIGH 43N168E 1025 MB.
.48 HOUR FORECAST HIGH 46N167E 1025 MB.

.HIGH 55N180W 1024 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 52N174W 1025 MB.
.48 HOUR FORECAST HIGH 49N173W 1028 MB.

.HIGH 46N179E 1026 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 35N162W 1027 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 33N135W 1027 MB DRIFTING SW 05 KT NEXT 24 HOURS THEN
TURNING NW 15 KT.
.24 HOUR FORECAST HIGH 32N139W 1027 MB.
.48 HOUR FORECAST HIGH 39N142W 1029 MB.

.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 1800 UTC FRI JUL 21.
24 HOUR FORECAST VALID 1800 UTC SAT JUL 22.
48 HOUR FORECAST VALID 1800 UTC SUN JUL 23.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM GREG NEAR 14.9N 120.7W 1003 MB AT 2100 UTC JUL
21 MOVING W OR 275 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N
SEMICIRCLE AND 20 NM S SEMICIRCLE.  SEAS 12 FT OR GREATER WITHIN
45 NM S SEMICIRCLE...90 NM NE QUADRANT AND 75 NM NW QUADRANT
WITH SEAS TO 16 FT. ELSEWHERE WITHIN 150 NM OF CENTER...EXCEPT
90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER
OF AREA FROM 12N TO 18N BETWEEN 116W AND 123W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM GREG NEAR 15.3N 124.6W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 120 NM N AND 90 NM S SEMICIRCLES WITH SEAS TO 19
FT. ELSEWHERE WITHIN 150 NM OF CENTER...EXCEPT 120 SW QUADRANT
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA FROM 10N
TO 19N BETWEEN 121W AND 128W WINDS 20 KT OR LESS. SEAS TO 9 FT
IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM GREG NEAR 15.6N 129.0W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 120 NM N AND 90 NM S SEMICIRCLES WITH SEAS TO 18
FT. ELSEWHERE WITHIN 180 NM OF CENTER...EXCEPT 150 SW QUADRANT
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA FROM 08N
TO 22N BETWEEN 124W AND 135W WINDS 20 KT OR LESS. SEAS TO 9 FT
IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM GREG NEAR 15.8N 132.4W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM GREG NEAR 16.8N 135.0W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM GREG NEAR 18.0N 138.0W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

...HURRICANE WARNING...
.TROPICAL DEPRESSION NINE-E NEAR 9.0N 94.7W 1008 MB AT 2100 UTC
JUL 21 MOVING W OR 280 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. SEAS TO 11 FT. WITHIN 150 NM NW QUADRANT WINDS
20 TO 30 KT. SEAS 8 TO 11 FT.
.12 HOUR FORECAST TROPICAL STORM NINE-E NEAR 9.3N 96.5W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT.
.24 HOUR FORECAST TROPICAL STORM NINE-E NEAR 10.0N 98.5W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
60 NM OF CENTER...EXCEPT 45 NM SW QUADRANT WITH SEAS TO 18 FT.
ELSEWHERE WITHIN 120 NM OF CENTER...EXCEPT 60 NM SW QUADRANT
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF THE AREA FROM
05N TO 07N BETWEEN 93W AND 100W S TO SW WINDS 20 TO 25 KT. SEAS
TO 9 FT.
.48 HOUR FORECAST HURRICANE NINE-E NEAR 12.5N 102.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NE QUADRANT...75 NM SE QUADRANT...60 NM SW
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
90 NM OF CENTER...EXCEPT 120 NM NE QUADRANT WITH SEAS TO 26 FT.
ELSEWHERE WITHIN 120 NM OF CENTER...EXCEPT 150 NM NE QUADRANT
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST HURRICANE NINE-E NEAR 14.5N 104.5W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NINE-E NEAR 16.0N 107.5W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT.
.120 HOUR FORECAST HURRICANE NINE-E NEAR 17.5N 111.0W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.TROPICAL STORM FERNANDA W OF AREA. FROM 10N TO 21N W OF 138W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.12 HOUR FORECAST CONDITIONS MOVED W OF AREA.

.LOW PRES NEAR 12N127W 1010 MB. WITHIN 180 NM NW QUADRANT OF LOW
CENTER WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST LOW PRES DISSIPATED. CONDITIONS MERGED WITH
GREG.

.LOW PRES NEAR 14N110W 1008 MB. WITHIN 90 NM OF CENTER...EXCEPT
120 SE QUADRANT OF LOW CENTER WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N113W 1008 MB. WITHIN 90 NM OF LOW CENTER WINDS 20 TO 25 KT.
SEAS TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N115W 1008 MB. WITHIN 90 NM OF LOW CENTER WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT.

.N OF 14N BETWEEN 94W AND 96W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 9 FT.
.12 HOUR FORECAST LITTLE CHANGE.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST FROM 10.5N TO 12N E OF 88W...INCLUDING THE
GULF OF PAPAGAYO...E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST 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 2100 UTC FRI JUL 21...

.TROPICAL STORM GREG...SCATTERED MODERATE ISOLATED STRONG WITHIN
120 NM NE QUADRANT OF CENTER.

.TROPICAL DEPRESSION NINE-E...SCATTERED MODERATE TO STRONG
WITHIN 150 NM NW QUADRANT OF CENTER. CLUSTER OF MODERATE TO
ISOLATED STRONG WITHIN 45 NM OF 12N96W. SCATTERED MODERATE
ISOLATED STRONG IS ELSEWHERE FROM 07N TO 13N BETWEEN 94W AND
99W.

.LOW PRES NEAR 14N110W...SCATTERED MODERATE ISOLATED STRONG
FROM 12N TO 15N BETWEEN 109W AND 113W.

.LOW PRES NEAR 12N127W...SCATTERED MODERATE WITHIN 120 NM S
QUADRANT OF LOW CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM THE COAST OF COLOMBIA AT 08N78W
TO THE COAST OF COSTA RICA AT 10N85W TO 09N91W. THE MONSOON
TROUGH BREAKS DOWN IN THE VICINITY OF NEWLY FORMED T.D. NINE-E
AND A SURFACE LOW NEAR 14N110W...THEN RESUMES FROM 14N120W TO
THE REMNANT LOW OF T.D. EIGHT-E NEAR 12N127W TO 12N131W. THE
ITCZ EXTENDS FROM 12N131W TO 10N140W. EXCEPT NOTED WITH THE
SYSTEMS DESCRIBED ABOVE...MINIMAL CONVECTION IS ASSOCIATED WITH
THE TROUGH AXIS.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.



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