000
FZPN03 KNHC 312137
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED JUL 31.
24 HOUR FORECAST VALID 1800 UTC THU AUG 01.
48 HOUR FORECAST VALID 1800 UTC FRI AUG 02.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE GIL AT 13.9N 120.6W 992 MB AT 2100 UTC JUL 31
MOVING W-NW OR 285 DEGREES AT 10 KT.  MAXIMUM SUSTAINED WIND 65 
GUSTS 80 KT. TROPICAL STORM FORCE WIND WITHIN 50 NM N SEMICIRCLE
AND 30 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N 
SEMICIRCLE...120 NM SE QUADRANT AND 90 NM SW QUADRANT WITH SEAS
TO 25 FT. ELSEWHERE WITHIN 180 NM N AND WITHIN 120 NM S 
SEMICIRCLES  WINDS TO 33 KT.  SEAS TO 12 FT
.24 HOUR FORECAST  HURRICANE GIL NEAR 14.7N 124.3W.  MAXIMUM
SUSTAINED WIND 70 GUSTS 85 KT.  TROPICAL STORM FORCE WINDS
WITHIN 100 NM N SEMICIRCLE...60 NM SE QUADRANT AND 50 NM SW
QUADRANT.  SEAS 12 FT OR GREATER WITHIN 180 NM N AND 90 NM S
SEMICIRCLES WITH SEAS TO 29 FT.  ELSEWHERE WITHIN 240 NM N AND
120 NM S SEMICIRCLES  WINDS TO 33 KT.  SEAS TO 12 FT.  
.48 HOUR FORECAST  HURRICANE GIL NEAR 15.3N 128.0W.  MAXIMUM
SUSTAINED WIND 65 GUSTS 80 KT.  LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.  ELSEWHERE
WITHIN 240 NM N AND WITHIN 120 NM S SEMICIRCLES  WINDS TO 33 KT.
SEAS TO 12 FT. 
.72 HOUR FORECAST  TROPICAL STORM GIL NEAR 15.5N 131.5W.
MAXIMUM SUSTAINED WIND 60 GUSTS 75 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST  TROPICAL STORM GIL NEAR 15.5N 135.0W.
MAXIMUM SUSTAINED WIND 45 GUSTS 55 KT.
.120 HOUR FORECAST  TROPICAL DEPRESSION GIL NEAR 15.5N 138.0W.
MAXIMUM SUSTAINED WIND 30 GUSTS 40 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 1008 MB.  WITHIN 60 NM N AND WITHIN 30 NM S 
SEMICIRCLES  WINDS 20 TO 25 KT.  SEAS TO 9 FT. 
.24 HOUR FORECAST  LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N116W 1008 MB.  WITHIN 90 NM N AND WITHIN 60 NM S SEMICIRCLES
WINDS 20 TO 25 KT.  SEAS TO 10 FT. 
.48 HOUR FORECAST  LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13N119W 1008 MB.  LITTLE CHANGE IN WINDS AND SEAS.
 
.FROM 13N TO 18N W OF 130W  WINDS 20 KT OR LESS.
SEAS 8 FT IN MIXED NE AND SE SWELL.
.24 HOUR FORECAST  FROM 12N TO 18N W OF 132W WINDS 20 KT OR LESS.
SEAS TO 9 FT IN MIXED NE AND SW SWELL.
.48 HOUR FORECAST  ELSEWHERE FROM 12N TO 18N W OF 135W  WINDS 20
KT OR LESS.  SEAS TO 9 FT IN MIXED NE AND SW SWELL.
 
CONVECTION VALID 2100 UTC WED JUL 31...

.TROPICAL STORM GIL...NUMEROUS STRONG WITHIN 120 NM OF N AND 75 
NM S SEMICIRCLES.  SCATTERED MODERATE ISOLATED STRONG ELSEWHERE
WITHIN 150 NM OF CENTER. 

.LOW PRES CENTER AT 12N112W...SCATTERED MODERATE ISOLATED STRONG
WITHIN 120 NM NW SEMICIRCLE. 

.LOW PRES 12N126W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
90 NM NW QUADRANT. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...                
MONSOON TROUGH AXIS FROM 09N84W TO 10N101W TO 1008 MB LOW PRES
12N112W.  ITCZ AXIS FROM 12N123W TO 1010 MB LOW PRES AT 10N130W
TO 09N140W.  SCATTERED MODERATE TO STRONG N OF 06N E OF 90W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 240 NM N AND 60 NM
S OF AXIS FROM 126W TO 131W.  
   
$$
.FORECASTER WALLY BARNES.  NATIONAL HURRICANE CENTER.