000
FZPN03 KNHC 181538
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN SEP 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SUN SEP 18.
24 HOUR FORECAST VALID 1200 UTC MON SEP 19.
48 HOUR FORECAST VALID 1200 UTC TUE SEP 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST

.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 14N BETWEEN 94.5W AND 96.5W INCLUDING THE 
GULF OF TEHUANTEPEC N TO NE WINDS 20 KT. SEAS TO 9 FT.
.48 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 96.5W INCLUDING 
THE GULF OF TEHUANTEPEC N TO NE WINDS 20 TO 25 KT. SEAS TO 9 FT.

.MONSOON TROUGH AXIS 20N112W TO 13N120W TO 11N140W. S OF TROUGH 
AXIS TO 07N BETWEEN 111W AND 135W SW WINDS 20 KT. SEAS 8 TO 9 
FT. WITHIN 240 NM N OF AXIS BETWEEN 127W AND 136W NE WINDS 20 TO 
25 KT. SEAS TO 9 FT IN MIXED SW SWELL.
.24 HOUR FORECAST MONSOON TROUGH FROM LOW PRES NEAR 16N113W 1009 
MB TO LOW PRES 13N122W 1008 MB TO 10N140W. S OF TROUGH AXIS TO 
08N BETWEEN 115W AND 136W SW WINDS 20 KT. SEAS TO 9 FT IN MIXED 
SW SWELL.
.48 HOUR FORECAST MONSOON TROUGH FROM 14N110W TO LOW PRES NEAR 
13N122W 1008 MB TO 08N140W. WITHIN 180 NM S OF AXIS BETWEEN 118W 
AND 132W SW WINDS 20 KT. SEAS TO 9 FT IN MIXED SW SWELL.

.DEVELOPING LOW PRES NEAR 10N94W 1009 MB. FROM 11N TO 13.5N 
BETWEEN 87W AND 92W E TO SE WINDS 20 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LOW PRES NEAR 12N94W 1009 MB. WITHIN 180 NM N 
SEMICIRCLE WINDS 20 KT. SEAS LESS THAN 8 FT. FROM 03N TO 07N 
BETWEEN 89W AND 98W SW WINDS 20 KT. SEAS 8 FT.
.48 HOUR FORECAST LOW PRES 13N96W 1008 MB. EXCEPT AS NOTED ABOVE 
IN GULF OF TEHUANTEPEC...WITHIN 180 NM N SEMICIRCLE WINDS 20 TO 
25 KT. SEAS TO 10 FT IN NE SWELL. FROM 04N TO 10N BETWEEN 92W 
AND 100W SW WINDS 20 KT. SEAS 8 TO 9 FT IN MIXED SW SWELL.

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

CONVECTION VALID AT 1445 UTC SUN SEP 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM EXTREME SW CARIBBEAN ACROSS W 
PANAMA/SE COSTA RICA AND ENTERS EPAC NEAR 08.5N84.5W TO LOW PRES 
10N94W 1009 MB THEN BREAKS AT 10N102W. THE TROUGH RESUMES FROM 
20N111W TO 13N119W TO 10N140W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION NOTED N OF 04N E OF 85W. SCATTERED MODERATE TO 
STRONG CONVECTION WAS NOTED N OF 05N BETWEEN 89W AND 103W. 
SCATTERED TO LOCALLY NUMEROUS MODERATE TO STRONG CONVECTION WAS 
NOTED WITHIN 150 NM N AND 240 NM S OF MONSOON TROUGH BETWEEN 
111W AND 137W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.