000
FZPN03 KNHC 311513
HSFEP2

HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC WED JUL 31 2013

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W. 

SYNOPSIS VALID 1200 UTC WED JUL 31.
24 HOUR FORECAST VALID 1200 UTC THU AUG 01.
48 HOUR FORECAST VALID 1200 UTC FRI AUG 02.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM GIL NEAR 13.6N 119.9W 1000 MB AT 1500 UTC JUL 31 
MOVING WNW OR 285 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 50 KT 
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM N 
SEMICIRCLE AND 30 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 
120 NM N SEMICIRCLE...90 NM SE QUADRANT AND 60 NM SW QUADRANT 
WITH SEAS TO 20 FT. ELSEWHERE WITHIN 180 NM N AND WITHIN 120 NM 
S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. WITHIN 270 NM NE AND 
WITHIN 180 NM SW SEMICIRCLES OF CENTER SEAS 8 TO 11 FT.  
.24 HOUR FORECAST TROPICAL STORM GIL NEAR 14.6N 124.0W. MAXIMUM 
SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM N SEMICIRCLE...60 NM SE QUADRANT AND 40 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N SEMICIRCLE... 
120 NM SE AND 90 NM SW QUADRANTS WITH SEAS TO 26 FT. ELSEWHERE 
WITHIN 240 NM N AND 120 NM S SEMICIRCLES OF CENTER WINDS 20 TO 
33 KT. WITHIN 300 NM NE AND WITHIN 180 NM SW SEMICIRCLES OF 
CENTER SEAS 8 TO 11 FT.  
.48 HOUR FORECAST HURRICANE GIL NEAR 15.3N 127.6W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM N SEMICIRCLE...70 NM SE QUADRANT AND 50 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N SEMICIRCLE... 
120 NM SE AND 90 NM SW QUADRANTS WITH SEAS TO 27 FT. ELSEWHERE 
WITHIN 240 NM N AND WITHIN 120 NM S SEMICIRCLES OF CENTER WINDS 
20 TO 33 KT. WITHIN 360 NM E AND WITHIN 180 NM W SEMICIRCLES OF 
CENTER SEAS 8 TO 11 FT. 
.72 HOUR FORECAST TROPICAL STORM GIL NEAR 15.8N 131.0W. MAXIMUM 
SUSTAINED WINDS 60 KT GUSTS 75 KT. EXTENDED OUTLOOK...USE FOR 
GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM GIL NEAR 16.0N 134.5W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST TROPICAL STORM GIL NEAR 16.0N 138.0W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.LOW PRES 12N112W 1009 MB. WITHIN 60 NM N AND WITHIN 30 NM S 
SEMICIRCLES OF CENTER WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N115W 1008 MB. WITHIN 90 NM N AND WITHIN 60 NM S SEMICIRCLES 
OF CENTER WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13N118W 1008 MB. LITTLE CHANGE IN WINDS AND SEAS.
 
.FROM 13N TO 18N W OF 130W WINDS 20 KT OR LESS. SEAS 8 FT 
PRIMARILY IN MIXED NE AND SE SWELL.
.24 HOUR FORECAST FROM 12N TO 18N W OF 130W WINDS 20 KT OR LESS. 
SEAS TO 9 FT PRIMARILY IN MIXED NE AND SW SWELL.
.48 HOUR FORECAST ELSEWHERE FROM 12N TO 18N W OF 133W WINDS 20 
KT OR LESS. SEAS TO 9 FT PRIMARILY IN MIXED NE AND SW SWELL.
 
CONVECTION VALID 1500 UTC WED JUL 31...

.TROPICAL STORM GIL...NUMEROUS STRONG WITHIN 60 NM OF CENTER. 
SCATTERED MODERATE ISOLATED STRONG ELSEWHERE WITHIN 90 NM OF 
CENTER. 

.LOW PRES 12N112W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
60 NM NW QUADRANT OF LOW. 

.LOW PRES 12N126W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
180 NM NW SEMICIRCLE OF LOW. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...                
MONSOON TROUGH AXIS 10N86W TO 09N96W TO LOW PRES 12N112W. ITCZ 
AXIS FROM 12N127W TO 10N140W. SCATTERED MODERATE TO STRONG N OF 
06N E OF 88W TO THE COAST OF PANAMA AND COSTA RICA. SCATTERED 
MODERATE ISOLATED STRONG WITHIN 120 NM EITHER SIDE OF AXIS 
BETWEEN 94W AND 110W.  
   
$$
.FORECASTER COBB. NATIONAL HURRICANE CENTER.