000
FZPN03 KNHC 200304
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE SEP 20 2011

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC TUE SEP 20.
24 HOUR FORECAST VALID 0000 UTC WED SEP 21.
48 HOUR FORECAST VALID 0000 UTC THU SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST

.N OF 14N BETWEEN 94.5W AND 96.5W INCLUDING THE GULF OF 
TEHUANTEPEC NE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST WITHIN 45 NM LINE 16N95W TO 13N97W NE WINDS 20 
TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST N OF 14N BETWEEN 93W AND 97W NE TO E WINDS 20 
TO 25 KT. SEAS TO 9 FT.

.LOW PRES 13N95W 1009 MB. WITHIN 90 NM N SEMICIRCLE NE TO E 
WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 05N TO 09N BETWEEN 93W AND 
101W SW WINDS 20 KT. SEAS TO 9 FT IN SW SWELL. POSSIBLE TROPICAL 
CYCLONE FORMATION.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N96W 1008 MB. ELSEWHERE WITHIN 180 NM N SEMICIRCLE NE TO E 
WINDS 20 TO 25 KT. SEAS TO 10 FT. FROM 05N TO 12N BETWEEN 90W 
AND 98W AND 05N TO 10N BETWEEN 98W AND 108W SW WINDS 20 KT. SEAS 
TO 9 FT IN SW SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N99W 1007 MB. ELSEWHERE WITHIN 180 NM N SEMICIRCLE NE TO E 
WINDS 20 TO 25 KT. SEAS TO 11 FT. FROM 08N TO 12N BETWEEN 92W 
AND 102W SW WINDS 20 KT. SEAS TO 10 FT IN SW SWELL.

.MONSOON TROUGH 17N116W TO 11N124W TO 10N140W. WITHIN 120 NM NW 
OF TROUGH NE WINDS 20 KT. SEAS TO 8 FT. WITHIN 480 NM SE OF 
TROUGH BETWEEN 110W AND 125W SW WINDS 20 KT. SEAS TO 10 FT IN SW 
SWELL.
.24 HOUR FORECAST FROM 09N TO 15N BETWEEN 110W AND 125W SW WINDS 
20 KT. SEAS TO 8 FT.
.42 HOUR FORECAST WINDS LESS 20 KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0245 UTC TUE SEP 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH 10N82W TO 14N90W TO LOW PRES 13N95W TO 
09N105W...THEN RESUMES FROM 17N115W TO LOW PRES 13.5N125W TO LOW 
PRES 11N134W TO BEYOND 10N140W. SCATTERED MODERATE ISOLATED 
STRONG WITHIN 30 NM OF COAST FROM 83W TO 86W...AND N OF 10N 
BETWEEN 90W AND 100W...AND WITHIN 60 NM LINE 09N94W TO 07N101W 
TO 11N110W.



WITHIN 180 NM 
EITHER SIDE OF LINE FROM 06N82W TO 14N94W TO 08N107W. SCATTERED 
MODERATE WITHIN 60 NM LINE 14N119W TO 12N125W.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.