000
FZPN03 KNHC 312102
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI AUG 31 2012

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 31.
24 HOUR FORECAST VALID 1800 UTC SAT SEP 01.
48 HOUR FORECAST VALID 1800 UTC SUN SEP 02.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ILEANA AT 22.4N 116.1W 987 MB AT 2100 UTC AUG
31 MOVING NW OR 305 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM N 
SEMICIRCLE...80 NM SE QUADRANT AND 50 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 210 NM E SEMICIRCLE AND 150 NM W SEMICIRCLE 
WITH SEAS TO 23 FT.
.24 HOUR FORECAST TROPICAL STORM ILEANA NEAR 23.3N 118.9W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 50 NM OF CENTER EXCEPT 30 NM SW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 150 NM E AND WITHIN 90 NM W SEMICIRCLES 
WITH SEAS TO 19 FT.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW ILEANA NEAR 23.8N 
122.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS TO 13 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW ILEANA NEAR 24.0N 
125.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW ILEANA NEAR 24.0N
128.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW ILEANA NEAR 23.5N
132.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 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.

.EXCEPT AS NOTED IN ILEANA WARNING...WITHIN 240 NM NE AND 180 NM 
SW SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
ELSEWHERE N OF 22N E OF 125W WINDS 20 KT OR LESS. SEAS 8 TO 11 
FT PRIMARILY IN MIXED N AND S SWELL. FROM 17N TO 22N E OF 122W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN MIXED S AND W 
SWELL.
.24 HOUR FORECAST EXCEPT AS NOTED IN ILEANA WARNING...WITHIN 180 
NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. ELSEWHERE N OF 
23N E OF 128W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN 
MIXED N AND S SWELL. FROM 17N TO 23N E OF 125W WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT PRIMARILY IN MIXED S AND W SWELL.
.36 HOUR FORECAST EXCEPT AS NOTED IN ILEANA WARNING...WITHIN 180 
NM OF CENTER WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE N OF 
23N E OF 130W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN 
MIXED N AND S SWELL. FROM 17N TO 23N BETWEEN 114W AND 125W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT PRIMARILY IN MIXED S AND W SWELL.
.48 HOUR FORECAST EXCEPT AS NOTED IN ILEANA WARNING...EXCEPT AS 
NOTED IN ILEANA WARNING...WITHIN 150 NM OF CENTER WINDS 20 TO 25 
KT. SEAS 8 TO 12 FT. ELSEWHERE N OF 24N E OF 130W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT PRIMARILY IN MIXED N AND S SWELL. FROM 18N 
TO 24N BETWEEN 118W AND 128W WINDS 20 KT OR LESS. SEAS TO 10 FT 
PRIMARILY IN MIXED S AND W SWELL.

.LOW PRES AT 12N100W 1010 MB. WITHIN 420 NM E QUADRANT E TO SE 
WINDS 20 TO 25 KT. SEAS TO 10 FT. POSSIBLE TROPICAL CYCLONE 
FORMATION.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
12N101W 1007 MB. WITHIN 360 NM NE AND 60 NM SW SEMICIRCLES OF 
CENTER WINDS 20 TO 30 KT. SEAS TO 11 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N105W 1006 MB. WITHIN 330 NM NE AND 240 NM SW SEMICIRCLES OF 
CENTER WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 10N TO 
20N BETWEEN 100 AND 110W WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
BROAD MIX OF SWELL. 

.ELSEWHERE S OF 17N BETWEEN 88W AND 122W WINDS 20 KT OR LESS. 
SEAS TO 9 FT PRIMARILY IN MIXED S SWELL.
.24 HOUR FORECAST S OF 17N BETWEEN 92W AND 117W WINDS 20 KT OR 
LESS. SEAS TO 9 FT PRIMARILY IN MIXED S SWELL.
.48 HOUR FORECAST CONDITIONS MERGE.

.S OF 07N BETWEEN 79W AND 85W WINDS 20 KT OR LESS. SEAS TO 9 FT 
PRIMARILY IN SW SWELL. 
.24 HOUR FORECAST S OF 05N BETWEEN 81W AND 85W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN S SWELL.
.48 HOUR FORECAST 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 AT 2100 UTC FRI AUG 31...

.TROPICAL STORM ILEANA...SCATTERED MODERATE TO STRONG WITHIN 90 
NM OF CENTER.

.LOW PRES 12N100W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
180 NM OVER W SEMICIRCLE OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS 11N85W TO 14N93W TO LOW PRES 12N100W TO 
15N108W TO 10N130W TO 10N140W. SCATTERED MODERATE ISOLATED 
STRONG ELSEWHERE WITHIN 240 NM OF LINE 07N91W TO 17N108W.
SCATTERED MODERATE NOTED WITHIN 30 NM OF LINE 13.5N112W TO 
10N121W AND LINE 09.5N128W TO 08N134W.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.