High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 010941
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FRI AUG 01.
24 HOUR FORECAST VALID 0600 UTC SAT AUG 02.
48 HOUR FORECAST VALID 0600 UTC SUN AUG 03.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM ISELLE NEAR 13.5N 124.6W 1002 MB AT 0900 UTC AUG
01 MOVING WNW OR 300 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM N
SEMICIRCLE...90 NM SE QUADRANT AND 70 NM SW QUADRANT. SEAS 12
FT OR GREATER WITHIN 240 NM E SEMICIRCLE...0 NM SW QUADRANT AND
120 NM NW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE WITHIN 270 NM
OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE ISELLE NEAR 14.8N 127.6W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM OF CENTER EXCEPT 80 NM SW QUADRANT. SEAS 12 FT OR
GREATER WITHIN 270 NM NE SEMICIRCLE AND 120 SW SEMICIRCLE WITH
SEAS TO 26 FT. ELSEWHERE WITHIN 360 NM NE SEMICIRCLE AND 210 NM
SW SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE ISELLE NEAR 15.8N 131.3W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.
.72 HOUR FORECAST HURRICANE ISELLE NEAR 16.5N 134.8W. 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 16.8N 137.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM ISELLE NEAR 17.0N 140.5W.
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.

.LOW PRES NEAR 11N137W 1009 MB. WITHIN 240 NM NW SEMICIRCLE NE
TO E WINDS 20 TO 25 KT. SEAS TO 8 FT IN MIXED NE AND SE SWELL.
.24 HOUR FORECAST LOW PRES W OF AREA. FROM 12N TO 17N W OF 137W
WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE AND SE SWELL.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST S OF 02S W OF 105W WINDS 20 KT OR LESS. SEAS 8
FT IN SW SWELL.
.48 HOUR FORECAST S OF 00S W OF 100W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN SW SWELL.

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

CONVECTION VALID 0830 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 WITHIN 150 NM NE SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N85W TO 08N94W TO LOW PRES NEAR 11N110W
1008 MB TO T.S. ISELLE NEAR 13N120W TO LOW PRES NEAR 12N138W
1008 MB TO BEYOND 12N140W. SCATTERED MODERATE TO ISOLATED STRONG
WITHIN 90 NM NE SEMICIRCLE OF LOW PRES NEAR 11N110W. SCATTERED
MODERATE WITHIN 90 NM S OF AXIS BETWEEN 125W AND 130W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.



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