000
FZPN03 KNHC 232125
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI AUG 23 2013

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W. 

SYNOPSIS VALID 1800 UTC FRI AUG 23.
24 HOUR FORECAST VALID 1800 UTC SAT AUG 24.
48 HOUR FORECAST VALID 1800 UTC SUN AUG 25.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM IVO NEAR 19.5N 111.8W 1000 MB AT 2100 UTC AUG 23 
MOVING N OR 360 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 
50 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM OF CENTER EXCEPT 
0 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM N SEMICIRCLE 
...210 NM SE QUADRANT AND 150 NM SW QUADRANT WITH SEAS TO 16 FT. 
ELSEWHERE OVER FORECAST WATERS WITHIN AN AREA BOUNDED BY A LINE 
FROM 12N128W TO 12N112W TO 19N104W TO 25N109W TO 12N128W WINDS 
20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM IVO NEAR 22.6N 112.6W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM E SEMICIRCLE...120 NM SW QUADRANT AND 60 NM NW 
QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN 180 
NM NE QUADRANT...330 NM SE QUADRANT...AND 0 NM W SEMICIRCLE WITH 
SEAS TO 16 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 300 NM E 
SEMICIRCLE INCLUDING GULF OF CALIFORNIA...180 NM W SEMICIRCLE... 
AND WITHIN 180 NM SE OF A LINE FROM 19N111W TO 13N122W WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA OVER FORECAST 
WATERS BOUNDED BY A LINE FROM 12N124W TO 12N110W TO 20N104W TO 
28N111W TO 12N124W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN A 
BROAD MIX OF SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 26.1N 
114.1W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. OVER FORECAST 
WATERS WITHIN 240 NM NE QUADRANT INCLUDING GULF OF CALIFORNIA... 
AND 180 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
WITHIN 180 NM W SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
A BROAD MIX OF SWELL. WITHIN 180 NM E OF A LINE FROM 17N117W TO 
12N125W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 28.0N 
115.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 28.0N 
116.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 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.

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

CONVECTION VALID 2100 UTC FRI AUG 23...

.TROPICAL STORM IVO...NUMEROUS MODERATE ISOLATED STRONG WITHIN 
210 NM E SEMICIRCLE. NUMEROUS MODERATE SCATTERED STRONG WITHIN 
420 NM SE QUADRANT.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...               
MONSOON TROUGH FROM 09N79W TO 12N103W THEN RESUMES AT LOW PRES 
NEAR 14N126W TO 12N138W. ITCZ AXIS FROM 12N138W TO 11N140W. 
SCATTERED MODERATE FROM 04N TO 08N BETWEEN 81W AND 85W...FROM 
07N TO 13.5N BETWEEN 94W AND 99W...WITHIN 240 NM SW QUADRANT OF 
LOW PRES...AND WITHIN 120 NM S OF MONSOON TROUGH BETWEEN 131W 
AND 134W.
 
$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.