000
FZPN03 KNHC 202116
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE SEP 20.
24 HOUR FORECAST VALID 1800 UTC WED SEP 21.
48 HOUR FORECAST VALID 1800 UTC THU SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST

.LOW PRES NEAR 14N96W 1008 MB. WITHIN 120 NM N SEMICIRCLE NE TO 
E WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE N OF 15N BETWEEN 
94W AND 97W INCLUDING GULF OF TEHUANTEPEC N WINDS 20 TO 25 KT. 
SEAS TO 9 FT. FROM 04N TO 11N BETWEEN 91W AND 107W S TO SW WINDS 
20 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N97W 1005 MB. WITHIN 180 NM OF CENTER WINDS 25 TO 30 KT WITH 
HIGHER GUSTS. SEAS TO 10 TO 12 FT. ELSEWHERE N OF 15N BETWEEN 
94W AND 97W INCLUDING GULF OF TEHUANTEPEC N TO NE WINDS 20 TO 25 
KT. SEAS TO 9 FT. FROM 07N TO 10N BETWEEN 93W AND 113W WINDS 
LESS THAN 20 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N99W 1000 MB. WITHIN 240 NM OF CENTER WINDS 25 TO 30 KT WITH 
HIGHER GUSTS. SEAS 10 TO 15 FT. ELSEWHERE N OF 14N BETWEEN 94W 
AND 96W INCLUDING GULF OF TEHUANTEPEC N TO NE WINDS 20 KT. SEAS 
TO 9 FT. FROM 08N TO 10N BETWEEN 100W AND 115W WINDS LESS THAN 
20 KT. SEAS TO 8 FT.

.36 HOUR FORECAST N OF 25N W OF 133W WINDS LESS THAN 20 KT. SEAS 
8 TO 11 FT IN NW SWELL.
.48 HOUR FORECAST N OF 20N W OF 130W WINDS LESS THAN 20 KT. SEAS 
8 TO 10 FT IN NW SWELL. 

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

CONVECTION VALID AT 2015 UTC TUE SEP 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 09N80W TO 1008 MB LOW NEAR 
14N96W TO 09N106W TO 15N114W TO 1011 MN LOW NEAR 12N121W TO 
13N127W TO 1011 MB LOW NEAR 11N136W TO 10N140W. SCATTERED 
MODERATE CONVECTION IS FROM 05N TO 08N BETWEEN 78W AND 87W. 
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS FROM 09N TO 
16N BETWEEN 90W AND 102W. SCATTERED MODERATE CONVECTION IS FROM 
08N TO 14N BETWEEN 110W AND 114W.    

$$
.FORECASTER FORMOSA. NATIONAL HURRICANE CENTER.