000
FZPN03 KNHC 131558
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU OCT 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU OCT 13.
24 HOUR FORECAST VALID 1200 UTC FRI OCT 14.
48 HOUR FORECAST VALID 1200 UTC SAT OCT 15.

.WARNINGS.
.TROPICAL STORM IRWIN AT 18.7N 107.2W 1003 MB AT 1500 UTC OCT 13 
MOVING E-NE OR 060 DEG AT 8 KT.  MAXIMUM SUSTAINED WIND 35 GUSTS 
40 KT.  TROPICAL STORM FORCE WIND WITHIN 30 NM S SEMICIRCLE.  
SEAS 12 FT OR GREATER WITHIN 60 NM NE QUADRANT...160 NM SE 
QUADRANT...170 NM SW QUADRANT...AND 30 NM NW QUADRANT WITH SEAS 
TO 17 FT.
.24 HOUR FORECAST  TROPICAL STORM IRWIN NEAR 18.2N 105.7W. 
MAXIMUM SUSTAINED WIND 35 GUSTS 45 KT.  TROPICAL STORM FORCE 
WINDS WITHIN 30 NM W SEMICIRCLE.  LITTLE CHANGE IN RADIUS OF 
SEAS 12 FT OR GREATER WITH SEAS TO 18 FT.
.48 HOUR FORECAST  TROPICAL STORM IRWIN NEAR 16.2N 105.6W. 
MAXIMUM SUSTAINED WIND 40 GUSTS 50 KT.  TROPICAL STORM FORCE 
WIND WITHIN 30 NM E SEMICIRCLE AND 45 NM W SEMICIRCLE.  SEAS 12 
FT OR GREATER WITHIN 150 NM E AND 60 NM W SEMICIRCLES WITH SEAS 
TO 22 FT.
.72 HOUR FORECAST  TROPICAL STORM IRWIN NEAR 15.0N 107.0W. 
MAXIMUM SUSTAINED WIND 40 GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST  TROPICAL STORM IRWIN NEAR 14.5N 108.5W. 
MAXIMUM SUSTAINED WIND 40 GUSTS 50 KT.
.120 HOUR FORECAST  TROPICAL STORM IRWIN NEAR 15.0N 110.0W. 
MAXIMUM SUSTAINED WIND 40 GUSTS 50 KT.

.SYNOPSIS AND FORECAST.

.EXCEPT AS NOTED IN WARNING...WITHIN 60 NM S SEMICIRCLE  WINDS 
TO 33 KT.  SEAS 12 TO 15 FT.  REMAINDER AREA WITHIN 180 NM S 
SEMICIRCLE  SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN SW 
SWELL.
.24 HOUR FORECAST  EXCEPT AS NOTED IN WARNING...WITHIN 60 NM S 
SEMICIRCLE  WINDS TO 33 KT.  SEAS TO 12 FT.  REMAINDER AREA FROM 
13N TO 18N BETWEEN 105W AND 110W  W TO NW WINDS 20 TO 25 KT. 
SEAS 9 TO 10 FT.
.48 HOUR FORECAST  EXCEPT AS NOTED IN WARNING...WITHIN 120 NM SW 
SEMICIRCLE  WINDS TO 33 KT.  SEAS TO 12 FT.  ELSEWHERE FROM 09N 
TO 20N BETWEEN 105W AND 112W  W TO NW WINDS 20 KT.  SEAS 8 TO 12 
FT IN MIXED NW AND SW SWELL.

.LOW PRES 1008 MB AT 07N133W.  WITHIN 90 NM SW SEMICIRCLE  WINDS 
20 KT.  SEAS 9 TO 10 FT IN NW SWELL. 
.24 HOUR FORECAST  LOW PRES 1008 MB NEAR 08N133W  WITHIN 120 NM 
S SEMICIRCLE  WINDS 20 KT.  SEAS 8 TO 11 FT IN NW SWELL.
.48 HOUR FORECAST  LOW PRES 1008 NEAR 10N130W  WITHIN 120 NM SE 
SEMICIRCLE  WINDS 20 KT.  SEAS 8 TO 10 FT IN NW SWELL.

.FROM 03N TO 09N BETWEEN 120W AND 130W S TO SW WINDS 20 KT. SEAS 
8 TO 10 FT IN SW SWELL. 
.24 HOUR FORECAST NEW LOW PRES 11N126W 1009 MB. WITHIN 150 NM SE 
SEMICIRCLE WINDS 20 KT. SEAS 9 TO 10 FT IN NW SWELL. 
.48 HOUR FORECAST LOW PRES 12N122W 1009MB. FROM 10N TO 12N 
BETWEEN 117W AND 122W SW WINDS 20 KT. SEAS 9 TO 11 FT IN NW 
SWELL.

.N OF 07N E OF 100W  SW TO W WINDS 20 TO 25 KT.  SEAS 8 TO 12 FT 
IN SW SWELL.  EXCEPT AS NOTED IN ABOVE PARAGRAPHS AND GULF OF 
CALIFORNIA...FROM 82W TO 129W  WINDS LESS THAN 20 KT.  SEAS 8 TO 
11 FT IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST  N OF 04N E OF 100W...INCLUDING GULF OF 
TEHUANTEPEC...N TO NW WINDS 20 TO 25 KT.  SEAS 8 TO 12 FT IN SW 
SWELL.  ELSEWHERE N OF 05N E OF 105W  WINDS LESS THAN 20 KT.  
SEAS 8 TO 11 FT IN SW SWELL.
.48 HOUR FORECAST  N OF 13N FROM 93W TO 96W...INCLUDING GULF OF 
TEHUANTEPEC...NW TO N WINDS 20 TO 30 KT.  SEAS 8 TO 11 FT.  
ELSEWHERE N OF 05N E OF 105W  WINDS LESS THAN 20 KT.  SEAS 8 TO 
9 FT IN SW SWELL.  

.24 HOUR FORECAST   COLD FRONT FROM 30N137W TO 28N140W.
NW OF FRONT  NW TO N WINDS 20 KT.  SEAS 8 FT.
.48 HOUR FORECAST  COLD FRONT FROM 30N134W TO 20N140W  
NW WINDS 20 KT.  SEAS TO 12 FT IN NW SWELL.

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

CONVECTION VALID AT 1500 UTC THU OCT 13...
.TROPICAL STORM IRWIN...SCATTERED MODERATE WITHIN 120 NM SE AND 
NW QUADRANTS.

.SCATTERED MODERATE ISOLATED STRONG N OF 12N E OF 95W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 16N117W TO 10N128W...TO 1008 MB LOW PRES 
CENTER AT 07N133W TO 8N140W.  SCATTERED MODERATE TO ISOLATED 
STRONG SHOWERS FROM 04N TO 06N BETWEEN 79W AND 81W...AND FROM 
14N TO 16N BETWEEN 102W AND 105W.  ISOLATED MODERATE SHOWERS 
FROM 07N TO 09N BETWEEN 122W AND 123W.  SCATTERED MODERATE TO 
STRONG SHOWERS OVER COASTAL WATERS OF CENTRAL AMERICA FROM EL 
SALVADOR NEAR 13N90W TO 15N94W...100 NM W OF SOUTHERN MEXICO/ 
SOUTHWESTERN GUATEMALA BORDER. 

$$
.FORECASTER WALLY BARNES.  NATIONAL HURRICANE CENTER.