High Seas Forecast
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000
FZPN02 KWBC 271725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC THU JUL 27 2017

CCODE/2:31:12:11:00/AOW+POR+AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JUL 27.
24 HOUR FORECAST VALID 1200 UTC JUL 28.
48 HOUR FORECAST VALID 1200 UTC JUL 29.

.WARNINGS.

...GALE WARNING...
.LOW 40N161W 1021 MB MOVING NE 35 KT. WITHIN 180 NM NW AND 240
NM W QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 49N145W 1006 MB. WITHIN 240 NM E OF A
FRONT FROM LOW CENTER TO 45N144W TO 40N151W WINDS 20 TO 30 KT.
SEAS TO 9 FT.
.48 HOUR FORECAST LOW 52N140W 995 MB. WITHIN 240 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 300 NM
N...420 NM E...360 NM S AND 240 NM SW QUADRANTS WINDS TO 25 KT.
SEAS TO 11 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.

.BETWEEN 124W AND A LINE FROM 43N126W TO 35N130W AREA OF N WINDS
TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST BETWEEN 123W AND A LINE FROM 43N126W TO
34N130W AREA OF N WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST BETWEEN 122W AND A LINE FROM 44N127W TO
33N130W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 12 FT.

.LOW 34N172E 1012 MB MOVING W 15 KT. WITHIN 360 NM N QUADRANT
WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. ELSEWHERE OVER FORECAST
WATERS WITHIN 660 NM W AND 480 NM N AND NE QUADRANTS WINDS TO 25
KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 34N165E 1013 MB. BETWEEN 179W AND A LINE
FROM 41N164E TO 37N160E TO 30N175E WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED W OF AREA. CONDITIONS DESCRIBED
BELOW WITH LOW 31N170E.

.OVER FORECAST WATERS N OF A LINE FROM 46N160E TO 53N180W TO
60N172W AREA OF SW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW N OF AREA 67N171W 994 MB. WITHIN 240 NM SE
SEMICIRCLE AND W OF A LINE FROM 63N171W TO 49N167W AREA OF WINDS
TO 25 KT. SEAS TO 10 FT...HIGHEST NEAR 55N176W.
.48 HOUR FORECAST LOW 66N169W 1009 MB AND A NEW LOW 54N159W 1007
MB. WITHIN 720 NM SW QUADRANT OF NEW LOW WINDS TO 25 KT. SEAS TO
8 FT.

.FROM 47N TO 54N BETWEEN 164W AND 172W AREA OF NW WINDS TO 25
KT. SEAS TO 8 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.COMPLEX LOW WITH MEAN CENTER 55N149W 1009 MB MOVING SE 15 KT.
BETWEEN 240 NM AND 420 NM W QUADRANT WINDS TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST LOW AND CONDITIONS MERGED WITH LOW 49N145W IN
WARNINGS SECTION.

.48 HOUR FORECAST LOW 31N170E 1008 MB. OVER FORECAST WATERS
WITHIN 480 NM E AND 540 NM N QUADRANTS WINDS 20 TO 30 KT. SEAS
TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 53N
BETWEEN 139W AND 145W AND FROM 40N TO 43N BETWEEN 152W AND 160W
AND OVER FORECAST WATERS W OF A LINE FROM 62N172W TO 48N157W TO
40N160E.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 52N BETWEEN 138W AND
145W AND WITHIN 120 NM OF 55N166W AND W OF A LINE FROM 58N178E
TO 47N167W TO 38N175E.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 58N178E TO 52N180W
TO 47N167W TO 38N174E.

.HIGH 37N144W 1030 MB MOVING SE 10 KT THEN BECOMING STATIONARY
AFTER 24 HOURS.
.24 HOUR FORECAST HIGH 36N138W 1026 MB.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 48N180W 1037 MB MOVING SE 05 KT.
.24 HOUR FORECAST HIGH 46N178W 1036 MB.
.48 HOUR FORECAST HIGH 43N177W 1032 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 1200 UTC THU JUL 27.
24 HOUR FORECAST VALID 1200 UTC FRI JUL 28.
48 HOUR FORECAST VALID 1200 UTC SAT JUL 29.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HILARY NEAR 17.6N 116.0W 986 MB AT 1500 UTC JUL 27
MOVING WNW OR 290 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE
QUADRANT...80 NM SE QUADRANT...50 NM SW QUADRANT...AND 70 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE AND
120 NM S SEMICIRCLE WITH SEAS TO 26 FT. ELSEWHERE WITHIN 180 NM
OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA
FROM 14N TO 23N BETWEEN 112W AND 120W WINDS 20 KT OR LESS. SEAS
TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE HILARY NEAR 18.7N 118.9W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
150 NM OF CENTER WITH SEAS TO 26 FT. ELSEWHERE WITHIN 210 NM OF
CENTER WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA
BOUNDED BY 21N127W TO 25N121W TO 20N113W TO 13N118W TO 21N127W
WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM HILARY NEAR 20.2N 122.8W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NW AND SE QUADRANTS...90 NM NE QUADRANT AND
60 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N
SEMICIRCLE AND 150 NM S SEMICIRCLE WITH SEAS TO 24 FT. ELSEWHERE
WITHIN 210 NM N SEMICIRCLE AND 180 NM S SEMICIRCLE WINDS 20 TO
33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA BOUNDED BY 21N130W TO
26N125W TO 24N116W TO 15N118W TO 21N130W WINDS 20 KT OR LESS.
SEAS TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM HILARY NEAR 21.2N 127.3W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM HILARY NEAR 21.8N 131.4W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW HILARY NEAR 22.6N
134.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM IRWIN NEAR 15.0N 124.2W 1000 MB AT 1500 UTC JUL
27 MOVING W OR 270 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM N
SEMICIRCLE AND 50 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN
90 NM N SEMICIRCLE AND 75 NM S SEMICIRCLE WITH SEAS TO 18 FT.
ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO
12 FT. REMAINDER OF AREA FROM 10N TO 20N BETWEEN 120W AND 129W
WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM IRWIN NEAR 15.0N 125.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE. SEAS 12
FT OR GREATER WITHIN 105 NM OF CENTER WITH SEAS TO 18 FT.
ELSEWHERE WITHIN 180 NM OF CENTER EXCEPT WITHIN 210 NM SE
QUADRANT WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA
BOUNDED BY 21N127W TO 12N117W TO 08N126W TO 17N133W TO 21N127W
WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IRWIN NEAR 15.5N 125.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. LITTLE CHANGE IN
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER
WITH SEAS TO 20 FT. ELSEWHERE WITHIN 150 NM OF CENTER EXCEPT
WITHIN 240 NM SE QUADRANT WINDS 20 TO 33 KT. SEAS 9 TO 12 FT.
REMAINDER OF AREA BOUNDED BY 21N130W TO 15N117W TO 09N122W TO
10N128W TO 17N133W TO 21N130W WINDS 20 KT OR LESS. SEAS TO 11 FT
IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM IRWIN NEAR 19.0N 125.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM IRWIN NEAR 23.0N 129.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST...DISSIPATED.

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.

.WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W TO 15N95W TO
14N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
25 KT. SEAS 8 FT IN SW SWELL.
.12 HOUR FORECAST GULF OF TEHUANTEPEC WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.18 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W
TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC...WINDS 20 KT OR
LESS. SEAS 8 FT IN SW SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST GULF OF TEHUANTEPEC WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.S OF 02S BETWEEN 88W AND 114W WINDS 20 KT OR LESS. SEAS 8 FT IN
S TO SW SWELL.
.24 HOUR FORECAST S OF 04N BETWEEN 81W AND 89W...S OF 08N
BETWEEN 92W AND 106W...AND ELSEWHERE S OF 01S BETWEEN 89W AND
115W WINDS 20 KT OR LESS. SEAS TO 9 FT IN S TO SW SWELL.
.48 HOUR FORECAST S OF 07N BETWEEN 80W AND 88W...S OF 10N
BETWEEN 91W AND 114W...AND ELSEWHERE S OF 01S BETWEEN 89W AND
117W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN S TO SW SWELL.

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

CONVECTION VALID AT 1500 UTC THU JUL 27...

.HURRICANE HILARY...NUMEROUS MODERATE SCATTERED STRONG FROM 17N
TO 19N BETWEEN 113W AND 116W. SCATTERED MODERATE ELSEWHERE FROM
15N TO 20N BETWEEN 110W AND 118W.

.TROPICAL STORM IRWIN...NUMEROUS MODERATE SCATTERED STRONG
WITHIN 105 NM SW SEMICIRCLE. SCATTERED MODERATE ELSEWHERE FROM
13N TO 17N BETWEEN 123W AND 127W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N79W TO 08N98W TO 12N109W. ITCZ FROM
10N130W TO 07N140W. SCATTERED MODERATE FROM 03N TO 08N E OF
81W...FROM 06N TO 11N BETWEEN 93W AND 98W...FROM 05N TO 14N
BETWEEN 101W AND 115W...AND FROM 06N TO 11N BETWEEN 130W AND
139W.

.FORECASTER HUFFMAN. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1200 UTC JUL 27 2017.
24 HOUR FORECAST VALID 1200 UTC JUL 28 2017.
48 HOUR FORECAST VALID 1200 UTC JUL 29 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 18N145W 1012 MB MOVING W 10 KT. WINDS 20 TO 25 KT WITHIN
180 NM N QUADRANT. SEAS 8 TO 12 FT FROM 24N TO 17N BETWEEN 141W
AND 148W.
.24 HOUR FORECAST LOW 17N148W 1012 MB. WINDS 20 TO 25 KT WITHIN
120 NM N QUADRANT. SEAS 8 TO 10 FT FROM 23N TO 17N BETWEEN 146W
AND 153W.
.48 HOUR FORECAST LOW 17N153W 1012 MB. WINDS DIMINISHED TO 20 KT
OR LESS. SEAS 8 FT FROM 21N TO 17N BETWEEN 150W AND 154W.

.LOW 25N174E 1012 MB. TROUGH 30N162E THROUGH LOW TO 23N160E. LOW
AND TROUGH MOVING N 10 KT. WINDS 20 TO 30 KT WITHIN 240 NM OF
LOW E QUADRANT. SEAS 8 TO 10 FT N OF 23N BETWEEN 180W AND
173E...SEAS 8 TO 9 FT NW OF LINE 30N164E 28N164E 24N160E.
SCATTERED STRONG TSTMS WITHIN 150 NM OF LOW E QUADRANT. ISOLATED
FROM 28N TO 12N W OF 168E.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH 30N172E 28N160E. WINDS
20 TO 30 KT W OF LINE 28N160E 27N168E 22N160E. SEAS 8 TO 9 FT N
OF 28N BETWEEN 178E AND 175E...SEAS 8 TO 11 FT W OF LINE 30N162E
27N167E 22N160E.
.48 HOUR FORECAST TROUGH 30N167E 28N160E. WINDS 20 TO 30 KT
WITHIN 240 NM SE OF TROUGH. SEAS 8 TO 12 FT NW OF LINE 30N173E
22N160E.

.ITCZ 07N140W 06N150W 08N162W 06N173W. ISOLATED MODERATE TSTMS
WITHIN 200 NM OF ITCZ.

.RIDGE 22N176W 18N176E 20N167E 18N160E NEARLY STATIONARY.

.SEAS 8 TO 9 FT FROM 16N TO 09N BETWEEN 152W AND 166W.
.24 HOUR FORECAST SEAS 8 FT FROM 15N TO 11N BETWEEN 165W AND
170W.
.48 HOUR FORECAST SEAS DIMINISHED TO LESS THAN 8 FT.

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

.ISOLATED MODERATE TSTMS FROM 08N TO 02N W OF 170E.

$$
.HONOLULU FORECASTER.


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