000
FZPN03 KNHC 201525
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC TUE SEP 20.
24 HOUR FORECAST VALID 1200 UTC WED SEP 21.
48 HOUR FORECAST VALID 1200 UTC THU SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST

.LOW PRES NEAR 13N96W 1008 MB. WITHIN 120 NM N SEMICIRCLE NE TO 
E WINDS 20 KT. SEAS 8 FT. ELSEWHERE N OF 15N BETWEEN 94W AND 96W 
INCLUDING GULF OF TEHUANTEPEC N WINDS 20 TO 25 KT. SEAS TO 9 FT. 
FROM 08N TO 11N BETWEEN 93W AND 98W AND FROM 04N TO 08N BETWEEN 
94W AND 105W S TO SW WINDS 20 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N97W 1007 MB. WITHIN 120 NM N SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS TO 9 FT. ELSEWHERE N OF 15N BETWEEN 94W AND 96W INCLUDING 
GULF OF TEHUANTEPEC N TO NE WINDS 20 TO 25 KT. SEAS TO 9 FT. 
FROM 07N TO 12N BETWEEN 91W AND 105W S TO SW WINDS 20 TO 25 KT. 
SEAS TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N98W 1005 MB. WITHIN 120 NM NW SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS 8 TO 11 FT. ELSEWHERE N OF 14N BETWEEN 94W AND 96W 
INCLUDING GULF OF TEHUANTEPEC N TO NE WINDS 20 KT. SEAS TO 9 FT. 
WITHIN 300 NM SE SEMICIRCLE SW WINDS 20 TO 25 KT. SEAS 8 TO 11 
FT.

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

CONVECTION VALID AT 1415 UTC TUE SEP 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO LOW PRES NEAR 
13N96W 1008 MB THEN ENDING NEAR 10N105W. THE MONSOON TROUGH 
RESUMES OVER THE PACIFIC AT 12N118W TO LOW PRES NEAR 11N121W 
1011 MB TO 13N126W TO LOW PRES NEAR 11N135W 1011 MB TO 09N140W. 
SCATTERED MODERATE TO STRONG CONVECTION NOTED N OF TROUGH AXIS 
TO COAST OF MEXICO BETWEEN 88W AND 92W AND WITHIN 150 NM N OF 
THE TROUGH AXIS BETWEEN 93W TO 102W. 

SCATTERED MODERATE TO ISOLATED STRONG CONVECTION NOTED N OF 09N 
TO TROUGH AXIS BETWEEN 87W AND 98W AND WITHIN 90 NM OF LINE FROM 
COLOMBIA NEAR 06N77W TO 09N86W. 

SCATTERED MODERATE TO ISOLATED STRONG CONVECTION NOTED FROM 09N 
TO 13N BETWEEN 108W AND 112W. 

$$
.FORECASTER PAW. NATIONAL HURRICANE CENTER.