High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 010250
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI AUG 01 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 0000 UTC FRI AUG 01.
24 HOUR FORECAST VALID 0000 UTC SAT AUG 02.
48 HOUR FORECAST VALID 0000 UTC SUN AUG 03.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM ISELLE NEAR 13.2N 123.9W 1005 MB AT 0300 UTC AUG
01 MOVING WNW OR 290 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM N
SEMICIRCLE...60 NM SE QUADRANT AND 0 NM SW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 120 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE WITH
SEAS TO 14 FT. ELSEWHERE WITHIN 240 NM OF CENTER...AND FROM 07N
TO 11N BETWEEN 125W AND 132W WINDS 20 TO 33 KT. SEAS TO 9 FT IN
MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM ISELLE NEAR 14.6N 126.7W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM OF CENTER EXCEPT 50 NM SW QUADRANT. SEAS 12
FT OR GREATER WITHIN 270 NM NE SEMICIRCLE AND 90 NM SW
SEMICIRCLE WITH SEAS TO 20 FT. ELSEWHERE WITHIN 420 NM E
SEMICIRCLE AND 180 W SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12
FT.
.48 HOUR FORECAST HURRICANE ISELLE NEAR 15.6N 130.1W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM OF CENTER EXCEPT 70 NM SW QUADRANT. SEAS 12 FT OR
GREATER WITHIN 210 NM IN NE SEMICIRCLE AND 120 NM SW SEMICIRCLE
WITH SEAS TO 22 FT. ELSEWHERE WITHIN 480 NM NE SEMICIRCLE AND
240 NM SW SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST HURRICANE ISELLE NEAR 16.5N 134.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. EXTENDED OUTLOOK...USE FOR
GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM ISELLE NEAR 16.5N 136.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM ISELLE NEAR 16.5N 140.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 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.

.LOW PRES NEAR 11N137W 1009 MB. WITHIN 300 NM NW SEMICIRCLE
WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NE AND SE SWELL.
.24 HOUR FORECAST LOW PRES NEAR 11N140W 1009 MB. WITHIN 360 NM
NW SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED NE AND
SE SWELL.
.48 HOUR FORECAST LOW PRES W OF AREA. 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 0200 UTC FRI AUG 01...

.TROPICAL WAVE ALONG 107W/108W FROM 19N TO 10N. NUMEROUS STRONG
FROM 08N TO 10N BETWEEN 105W AND 108W. SCATTERED MODERATE
ISOLATED STRONG FROM 10N TO 15N BETWEEN 100W AND 110W.

.T.S. ISELLE NUMEROUS STRONG FROM 110N TO 14N BETWEEN 122W AND
125W.

.LOW PRES NEAR 11N137W 1009 MB...SCATTERED MODERATE TO ISOLATED
STRONG FROM 07N TO 13N BETWEEN 137W AND 140W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N77W TO 09N86W TO 08N94W TO 12N118W TO
13N128W TO LOW PRES NEAR 11N137W 1009 MB TO 12N140W. CONVECTIVE
PRECIPITATION...NUMEROUS STRONG FROM 08N TO 09N BETWEEN 88W AND
90W...FROM 05N TO 09N BETWEEN 91W AND 93W...AND FROM 12N TO 14N
BETWEEN 114W AND 117W. SCATTERED STRONG FROM 10N TO 13N BETWEEN
126W AND 131W.

$$
.FORECASTER MT. NATIONAL HURRICANE CENTER.


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