000
FZPN03 KNHC 170248
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC MON OCT 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MON OCT 17.
24 HOUR FORECAST VALID 0000 UTC TUE OCT 18.
48 HOUR FORECAST VALID 0000 UTC WED OCT 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.POST-TROPICAL CYCLONE IRWIN NEAR 14.1N 108.3W 1007 MB AT 0300 
UTC OCT 17 MOVING NW OR 310 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 
25 KT GUSTS 35 KT. SEAS 8 TO 11 FT. 
.24 HOUR FORECAST POST TROPICAL REMNANT LOW IRWIN NEAR 14.6N 
109.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 60 NM 
N AND 90 NM S SEMICIRCLES WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST POST TROPICAL REMNANT LOW IRWIN NEAR 14.1N 
109.4W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. SEAS TO 9 FT.

.FROM 05N TO 12N BETWEEN 100W AND 118W S TO SW WINDS 20 TO 25 
KT. SEAS 9 TO 11 FT PRIMARILY IN MIXED NW AND SW SWELL. 
ELSEWHERE S OF 16N BETWEEN 100W AND 120W AND S OF 10N BETWEEN 
120W AND 130W WINDS LESS THAN 20 KT. SEAS TO 9 FT PRIMARILY IN 
NW SWELL.
.24 HOUR FORECAST FROM 06N TO 12N BETWEEN 100W AND 118W S TO SW 
WINDS 20 TO 25 KT. SEAS 9 TO 11 FT PRIMARILY IN MIXED NW AND SW 
SWELL. ELSEWHERE S OF 14N BETWEEN 100W AND 115W AND S OF 10N 
BETWEEN 115W AND 125W WINDS LESS THAN 20 KT. SEAS TO 9 FT 
PRIMARILY IN NW SWELL.
.48 HOUR FORECAST FROM 07N TO 13N BETWEEN 100W AND 112W S TO SW 
WINDS 20 TO 25 KT. SEAS 9 TO 12 FT PRIMARILY IN MIXED NW AND SW 
SWELL. ELSEWHERE FROM 06N TO 15N BETWEEN 100W AND 120W WINDS 
LESS THAN 20 KT. SEAS TO 9 FT PRIMARILY IN NW SWELL.

.WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W TO 13N92W... 
INCLUDING GULF OF TEHUANTEPEC...NW TO N WINDS 20 TO 25 KT. SEAS 
8 TO 11 FT. FROM 07N TO 13N E OF 100W SW TO W WINDS 20 TO 25 KT. 
SEAS 9 TO 12 FT PRIMARILY IN SW SWELL. ELSEWHERE N OF 05N 
BETWEEN 80W AND 100W WINDS LESS THAN 20 KT. SEAS TO 9 FT IN 
MIXED NW AND SW SWELL.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 13N93W...INCLUDING GULF OF TEHUANTEPEC...NW TO N WINDS 20 KT. 
SEAS 8 TO 10 FT PRIMARILY IN SW SWELL. FROM 08N TO 13N E OF 100W 
SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 11 FT PRIMARILY IN SW 
SWELL. 
.48 HOUR FORECAST FROM 07N TO 13N BETWEEN 86W AND 100W SW TO W 
WINDS 20 TO 25 KT. SEAS 9 TO 12 FT PRIMARILY IN SW SWELL. 

.LOW PRES 1008 MB NEAR 30N137W DRIFTING N WITH WEAKENING COLD 
FRONT FROM LOW TO 30N130W TO 20N136W. TROUGH FROM LOW TO 
23N140W. OVER FORECAST WATERS WITHIN 90 NM OF LOW CENTER WINDS 
20 KT. SEAS 9 TO 13 FT IN NW SWELL. ELSEWHERE E OF TROUGH TO 
132W S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE W OF 
FRONT WINDS LESS THAN 20 KT. SEAS 9 TO 13 FT IN NW SWELL.
.24 HOUR FORECAST LOW PRES NEAR 31N136W 1010 MB WITH DISSIPATING 
STATIONARY FRONT FROM LOW TO 30N130W TO 20N136W. TROUGH FROM LOW 
TO 24N140W. FROM 12N TO 22N W OF 130W AND N OF 22N W OF 135W 
WINDS LESS THAN 20 KT. SEAS TO 9 FT IN NW SWELL. 
.48 HOUR FORECAST LOW PRES AND FRONT DISSIPATED. TROUGH FROM 
30N133W TO 24N140W. FROM 12N TO 22N W OF 130W AND N OF 22N W OF 
138W WINDS LESS THAN 20 KT. SEAS TO 9 FT IN NW SWELL.

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

CONVECTION VALID AT 0215 UTC MON OCT 17...
.TROPICAL DEPRESSION IRWIN...NO DEEP CONVECTION.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 16N98W TO 15N105W THEN RESUMES W OF 
IRWIN FROM 12N11OW TO 08N125W TO 10N140W. ISOLATED MODERATE FROM 
12N TO 15N BETWEEN 93W AND 96W AND FROM 07N TO 10N BETWEEN 115W 
AND 120W.  
 
$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.