000
FZPN03 KNHC 171523
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SAT SEP 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SAT SEP 17.
24 HOUR FORECAST VALID 1200 UTC SUN SEP 18.
48 HOUR FORECAST VALID 1200 UTC MON SEP 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST

.LOW PRES 11.5N132W 1011 MB. WITHIN 240 NM N SEMICIRCLE NE WINDS 
20 KT. SEAS 8 FT. S OF MONSOON TROUGH TO 07N BETWEEN 128W AND 
136W S TO SW WINDS 20 KT. SEAS 8 FT. ELSEWHERE FROM 13N TO 18N W 
OF 129W NE WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES DISSIPATED NEAR 10.5N134W. FROM 12N 
TO 15N W OF 132W NE WINDS 20 KT. SEAS TO 8 FT.

.MONSOON TROUGH FROM 17N110W TO 14N112W TO 11N122W TO 11N125W. S 
OF MONSOON TROUGH TO 07N BETWEEN 110W AND 125W SW WINDS 20 TO 
LOCALLY 25 KT. SEAS TO 9 FT IN MIXED SW SWELL.
.24 HOUR FORECAST MONSOON TROUGH FROM 18N111W TO LOW PRES NEAR 
14.5N113W 1009 MB TO 11N127W. S OF MONSOON TROUGH TO 07N BETWEEN 
111W AND 127W SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT IN MIXED SW 
SWELL.
.48 HOUR FORECAST MONSOON TROUGH FROM 20N11W TO LOW PRES NEAR 
15N117W 1008 MB TO 12N123W TO 10N128W. S OF MONSOON TROUGH TO 
07N BETWEEN 114W AND 128W SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT 
IN MIXED SW SWELL.

.N OF 14N BETWEEN 94W AND 96W INCLUDING THE GULF OF TEHUANTEPEC 
GULF OF TEHUANTEPEC N WINDS 20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST N OF 13N BETWEEN 94.5W AND 96W INCLUDING THE 
GULF OF TEHUANTEPEC N WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST LOW PRES NEAR 11N95W 1007 MB. FROM 04N TO 08N 
BETWEEN 88W AND 95W SW WINDS 20 KT. SEAS 8 TO 9 FT. ELSEWHERE 
FROM 02N TO 08N BETWEEN 88W AND 105W WINDS LESS THAN 20 KT. SEAS 
8 FT IN SW SWELL.

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

CONVECTION VALID AT 1445 UTC SAT SEP 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS FROM 09N84W TO 14N95W...THEN DISCONTINUOUS 
STARTING AGAIN AT 18N108W TO 14N110W TO LOW PRES NEAR 11.5N132W 
1011 MB TO 10N140W. SCATTERED MODERATE TO ISOLATED STRONG 
CONVECTION BETWEEN THE TROUGH AXIS AND THE CENTRAL AMERICAN 
COAST FROM 09N TO 14N. SCATTERED MODERATE CONVECTION WITHIN 120 
NM S OF AXIS BETWEEN 112W AND 116W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.