000
FZPN03 KNHC 202148
HSFEP2

HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU SEP 20 2012

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 20.
24 HOUR FORECAST VALID 1800 UTC FRI SEP 21.
48 HOUR FORECAST VALID 1800 UTC SAT SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES AT 13N103W 1008 MB.  WITHIN 30 NM NE QUADRANT  WINDS 
20 KT OR LESS.  SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...14N106W 
1006 MB.  WITHIN 120 NM OF CENTER  WINDS 20 TO 30 KT.  SEAS TO 
10 FT.
.48 HOUR FORECAST  LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N109W 1004 MB.  WITHIN 180 NM OF CENTER  WINDS 25 TO 30 KT.  
SEAS TO 11 FT.  ELSEWHERE FROM 07N TO 13N BETWEEN 102W AND 
112W  SW WINDS 20 TO 25 KT.  SEAS TO 10 FT. 

.TROUGH 24N134W TO 19N136W.  WITHIN 240 NM W OF TROUGH  NE WINDS 
20 TO 25 KT.  SEAS TO 10 FT.
.24 HOUR FORECAST  TROUGH 23N139W TO 19N140W. 
W OF TROUGH  NE WINDS 20 KT OR LESS.  SEAS TO 8 FT.
.48 HOUR FORECAST  TROUGH DISSIPATED.  FROM 11N TO 22N W OF 135W 
WINDS 20 KT OR LESS.  SEAS LESS THAN 8 FT. 

.N OF 26N FROM 120W TO 125W  N WINDS 20 TO 25 KT.  SEAS 8 FT.
.24 HOUR FORECAST  LITTLE CHANGE.
.48 HOUR FORECAST  WINDS 20 KT OR LESS.  SEAS LESS THAN 8 FT. 

.WITHIN 30 NM OF LINE 16N95W TO 14N96W TO 14N101W INCLUDING  
GULF OF TEHUANTEPEC...NE TO E WINDS 20 TO 25 KT.  SEAS TO 8 FT.
.24 HOUR FORECAST  WITHIN 45 NM OF LINE 16N95W TO 14N97W 
INCLUDING GULF OF TEHUANTEPEC...NE TO E WINDS 20 TO 25 KT.  
SEAS TO 10 FT.
.48 HOUR FORECAST  WITHIN 30 NM OF LINE 16N95W TO 14N97W 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. 
SEAS TO 9 FT.

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

CONVECTION VALID AT 2100 THU SEP 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 1008 MB LOW PRES 13N103W TO 
10N114W TO 11N122W TO 09N128W.  ITCZ AXIS EXTEND FROM 08N134W TO 
BEYOND 06N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION 
WITHIN 150 NM N SEMICIRCLE OF LOW PRES CENTER AT 13N103W. 
SCATTERED MODERATE CONVECTION S OF AXIS TO 07N FROM 103W TO 
110W.  ISOLATED MODERATE CONVECTION WITHIN 150 NM OF 08N132W. 

$$
.FORECASTER WALLY BARNES.  NATIONAL HURRICANE CENTER.