High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 311724
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI JUL 31 2015

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 31.
24 HOUR FORECAST VALID 1200 UTC AUG 01.
48 HOUR FORECAST VALID 1200 UTC AUG 02.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 47N176E 1007 MB MOVING SE 15 KT. WITHIN 180 NM N OF A FRONT
FROM LOW CENTER TO 48N167W WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 43N179W 1008 MB. WITHIN 360 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DESCRIBED BELOW
WITH LOW 41N176W.

.LOW 47N175W 1011 MB MOVING E 10 KT. WITHIN 300 NM SW AND 360 NM
S QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 47N170W 1013 MB. WITHIN 180 NM N OF A
FRONT TO EXTEND FROM 49N179E TO 48N167W AND WITHIN 240 NM E
QUADRANT WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY NEW LOW 47N165W
DESCRIBED BELOW.

.LOW 32N139W 1014 MB MOVING NW 05 KT. OVER FORECAST WATERS
WITHIN 240 NM E OF A LINE FROM 50N130W TO 42N133W TO 34N140W
WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 35N143W 1015 MB. WITHIN 240 NM E OF A LINE
FROM 36N141W TO 43N130W TO 49N131W WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 35N135W 1015 MB. WITHIN 180 NM E OF A LINE
FROM 40N137W TO 44N131W TO 49N130W WINDS TO 25 KT. SEAS TO 8 FT.

.LOW 56N137W 1012 MB MOVING NE 10 KT. OVER FORECAST WATERS
WITHIN 240 NM SE QUADRANT WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND ASSOCIATED
CONDITIONS DIMINISHED.

.24 HOUR FORECAST LOW 38N176E 1009 MB. WITHIN 300 NM S
SEMICIRCLE WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 41N176W 1003 MB. WITHIN 180 NM E AND SE
AND 540 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.

.24 HOUR FORECAST LOW JUST W OF AREA 49N155E 1003 MB. OVER
FORECAST WATERS WITHIN 300 NM E QUADRANT WINDS TO 25 KT. SEAS
LESS THAN 8 FT.
.48 HOUR FORECAST LOW JUST NW OF AREA 52N161E 1002 MB. WITHIN
480 NM E AND SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST NEW LOW 47N165W 1007 MB. WITHIN 360 NM E
SEMICIRCLE...AND WITHIN 300 NM N OF A LINE FROM 47N168W TO
44N175E TO 46N178E WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST OVER FORECAST WATERS N OF 60N W OF 162E WINDS
TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS WITHIN A REGION BOUNDED BY A LINE FROM 53N166E TO 42N176W
TO 46N160W TO 62N175W TO 53N168E...FROM 47N TO 51N W OF
163E...AND FROM 39N TO 42N BETWEEN 162E AND 172E.
.24 HOUR FORECAST DENSE FOG WITHIN 300 NM N OF A LINE FROM
40N178W TO 46N150W AND FROM 45N TO 57N W OF 173W.
.48 HOUR FORECAST DENSE FOG WITHIN 360 NM S OF A LINE FROM
46N176W TO 51N151W AND FROM 46N TO 56N BETWEEN 161E AND 172E AND
FROM 53N TO 57N BETWEEN 179E AND 172W.

.HIGH 44N137W 1025 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 38N148W 1026 MB MOVING NW 10 KT.
.24 HOUR FORECAST HIGH 40N153W 1026 MB.
.48 HOUR FORECAST HIGH 42N149W 1025 MB.

.HIGH 53N152W 1023 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH 54N146W 1023 MB.
.48 HOUR FORECAST HIGH 54N147W 1023 MB.

.HIGH 58N167W 1023 MB MOVING W 10 KT.
.24 HOUR FORECAST HIGH 58N173W 1025 MB.
.48 HOUR FORECAST HIGH 57N172W 1029 MB.

.HIGH 33N162E 1020 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH 32N162E 1016 MB.
.48 HOUR FORECAST HIGH 30N160E 1017 MB.

.FORECASTER SOMMERVILLE. 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 FRI JUL 31.
24 HOUR FORECAST VALID 1200 UTC SAT AUG 01.
48 HOUR FORECAST VALID 1200 UTC SUN AUG 02.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE GUILLERMO NEAR 12.4N 132.7W 975 MB AT 1500 UTC JUL 31
MOVING WNW OR 285 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E
SEMICIRCLE...60 NM SW QUADRANT AND 90 NM NW QUADRANT. SEAS 12
FT OR GREATER WITHIN 200 NM NE QUADRANT...150 NM SE
QUADRANT...120 NM SW QUADRANT...AND 180 NM NW QUADRANT WITH SEAS
TO 30 FT. ELSEWHERE WITHIN 210 NM E AND 150 NM SW  SEMICIRCLES
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER EPAC S OF 16N
BETWEEN 120W AND 133W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED
SWELL.
.24 HOUR FORECAST HURRICANE GUILLERMO NEAR 13.6N 137.8W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 130 NM NE QUADRANT...100 NM SE QUADRANT...80 NM SW
QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
270 NM N QUADRANT...180 NM QUADRANT...AND 210 NM ELSEWHERE WITH
SEAS TO 36 FT. ELSEWHERE WITHIN 270 NM OF CENTER WINDS 20 TO 33
KT. SEAS 8 TO 11 FT. REMAINDER EPAC FROM 07N TO 20N BETWEEN 130W
AND 140W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE GUILLERMO NEAR 15.0N 142.4W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 140 NM NE QUADRANT...110 NM SE QUADRANT...80 NM SW
QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER FROM
13N TO 19N W OF 139W WITH MAX SEAS OVER FORECAST WATERS TO 17
FT. OVER FORECAST WATERS FROM 13N TO 20N BETWEEN 137W AND 139W
WINDS 20 TO 33 KT. SEAS 10 TO 17 FT. REMAINDER FORECAST WATERS
FROM 07N TO 24N BETWEEN 135W AND 140W WINDS 20 KT OR LESS. SEAS
TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE GUILLERMO NEAR 16.3N 145.4W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. EXTENDED OUTLOOK...USE FOR
GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM GUILLERMO NEAR 17.5N 148.3W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM GUILLERMO NEAR 18.5N 152.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 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.

.FROM 09N TO 12N E OF 90W...INCLUDING THE GULF OF PAPAGAYO...NE
WINDS 20 TO 25 KT. SEAS TO 10 FT.
.06 HOUR FORECAST FROM 08N TO 12N E OF 91W...INCLUDING THE GULF
OF PAPAGAYO...WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SW AND
SE SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 10N TO 11N BETWEEN 87W AND 89W WINDS 20
KT OR LESS. SEAS TO 8 FT PRIMARILY IN SW SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF LINE FROM 03.4S96W TO 02N120W TO 04N128W TO 00N132W WINDS
20 KT OR LESS. SEAS TO 8 FT IN MIXED SW AND S SWELL.
.24 HOUR FORECAST S OF LINE FROM 03.4S90W TO 04N105W TO 03N122W
TO 00N129W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND
NW SWELL.
.48 HOUR FORECAST S OF LINE FROM 03.4S81W TO 01S90W TO 04N94W TO
06N113W TO 01S120W...EXCEPT N LEE OF GALAPAGOS ISLANDS...WINDS
20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND NW SWELL.

.FROM 18N TO 22N W OF 139W WINDS 20 KT OR LESS. SEAS TO 8 FT
PRIMARILY IN MIXED SWELL.
.06 HOUR FORECAST CONDITIONS SHIFT W OF 140W.

.42 HOUR FORECAST FROM 23N TO 27N E OF 116W TO BAJA PENINSULA
WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NW AND S SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID 1500 UTC FRI JUL 31...

.HURRICANE GUILLERMO...NUMEROUS STRONG WITHIN 90 NM OF CENTER IN
N SEMICIRCLE AND WITHIN 45 NM OF CENTER IN S SEMICIRCLE...WITHIN
120 NM TO 200 NM SE QUADRANT...WITHIN 180 NM NE QUADRANT...
WITHIN 120 NM TO 150 NM NW QUADRANT. SCATTERED STRONG FROM 15N
TO 16N BETWEEN 128W AND 131W.

.TROPICAL WAVE ALONG 98W/99W S OF 17N. NUMEROUS STRONG FROM 16N
TO 18N BETWEEN 104W AND 106W. SCATTERED MODERATE ISOLATED STRONG
FROM 05N TO 15N BETWEEN 97W AND 101W...AND FROM 10N TO 13N
BETWEEN 91W AND 96W.

.TROPICAL WAVE ALONG 110W/111W S OF 13N. SCATTERED MODERATE
ISOLATED STRONG FROM 07N TO 13N BETWEEN 102W AND 110W. SCATTERED
MODERATE ISOLATED STRONG FROM 03N TO 07N BETWEEN 111W AND 116W.

.SCATTERED MODERATE TO STRONG FROM 15N TO 18N BETWEEN 102W AND
104W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...MONSOON TROUGH
FROM 09N83W TO 08N97W TO 05N110W. SCATTERED MODERATE TO STRONG
WITHIN 30 NM TO 45 NM EITHER SIDE OF LINE FROM 03N80W TO 04N84W
TO 05N86W TO 06N89W.

.FORECASTER MT. NATIONAL HURRICANE CENTER.


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