000
FZPN03 KNHC 180246
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE OCT 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC TUE OCT 18.
24 HOUR FORECAST VALID 0000 UTC WED OCT 19.
48 HOUR FORECAST VALID 0000 UTC THU OCT 20.

.WARNINGS.

...GULF OF TEHUANTEPEC GALE WARNING...
.36 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE 16N95W TO 
14N96W N TO NE WINDS 30 TO 35 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF LINE 16N95W TO 
13N97W N TO NE WINDS 30 TO 40 KT. SEAS 10 TO 15 FT.

.SYNOPSIS AND FORECAST.

.LOW PRES 1012 MB NEAR 31N136W MOVING NE WITH TROUGH EXTENDING 
FROM LOW CENTER TO 24N140W. W OF TROUGH WINDS LESS THAN 20 KT. 
SEAS TO 9 FT IN N SWELL. FROM 11N TO 24N W OF 130W WINDS LESS 
THAN 20 KT. SEAS TO 9 FT IN NW SWELL.
.24 HOUR FORECAST LOW PRES N OF AREA WITH TROUGH FROM 30N134W TO 
23N140W. FROM 06N TO 18N W OF 127W WINDS LESS THAN 20 KT. SEAS 
TO 9 FT PRIMARILY IN N SWELL.
.48 HOUR FORECAST TROUGH DISSIPATED. WINDS LESS THAN 20 KT. SEAS 
LESS THAN 8 FT.  

.WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W TO 14N94W... 
INCLUDING THE GULF OF TEHUANTEPEC...NW WINDS 20 KT. SEAS TO 9 FT 
IN SW SWELL. FROM 08N TO 14N BETWEEN 88W AND 100W SW TO W WINDS 
20 TO 25 KT. SEAS 8 TO 11 FT. FROM 06N TO 13N BETWEEN 100W AND 
115W S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE S OF 
14N BETWEEN 100W AND 115W AND S OF 10N BETWEEN 115W AND 124W 
WINDS LESS THAN 20 KT. SEAS TO 9 FT IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST FROM 07N TO 13N BETWEEN 86W AND 110W SW TO W 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 06N TO 15N 
BETWEEN 100W AND 115W WINDS LESS THAN 20 KT. SEAS TO 9 FT IN 
MIXED SW AND NW SWELL.
.48 HOUR FORECAST FROM 07N TO 13N BETWEEN 90W AND 112W SW TO W 
WINDS 20 TO 25 KT. SEAS 8 TO 12 FT PRIMARILY IN SW SWELL.

.36 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...WITHIN 60 NM 
EITHER SIDE OF LINE 16N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. 
SEAS 8 TO 9 FT.  
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...WITHIN 75 NM 
EITHER SIDE OF LINE FROM 16N95W TO 11N98W N TO NE WINDS 20 TO 30 
KT. SEAS 8 TO 10 FT.
 
.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0215 UTC TUE OCT 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 18N103W TO 1008 MB REMNANT LOW OF 
IRWIN NEAR 15.5N109.5W TO 08N120W TO 07N130W. ITCZ FROM 07N130W 
TO 11N140W. ISOLATED TO SCATTERED MODERATE CONVECTION FROM 10N 
TO 14N BETWEEN 92W AND 102W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.