000
FZPN03 KNHC 100316
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SUN AUG 10 2008
 
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SUN AUG 10.
24 HOUR FORECAST VALID 0000 UTC MON AUG 11.
48 HOUR FORECAST VALID 0000 UTC TUE AUG 12.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HERNAN NEAR 16.7N 124.9W 961 MB AT 0300 UTC AUG 10 
MOVING WNW OR 300 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 100 KT 
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM N 
SEMICIRCLE AND 100 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 
240 NM E SEMICIRCLE...90 NM SW QUADRANT AND 150 NM NW QUADRANT 
WITH SEAS TO 37 FT.
.24 HOUR FORECAST HURRICANE HERNAN NEAR 17.7N 127.5W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM OF CENTER EXCEPT 75 NM SW QUADRANT. SEAS 12 FT OR 
GREATER WITHIN 180 NM E SEMICIRCLE...75 NM SW AND 125 NM NW 
QUADRANTS WITH SEAS TO 28 FT.
.48 HOUR FORECAST TROPICAL STORM HERNAN NEAR 18.0N 130.0W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE 
WINDS WITHIN 75 NM OF CENTER EXCEPT 50 NM SW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 150 NM N SEMICIRCLE...75 NM SW AND 90 NM SE 
QUADRANTS WITH SEAS TO 18 FT. 
.72 HOUR FORECAST TROPICAL STORM HERNAN NEAR 17.5N 132.0W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION HERNAN NEAR 17.0N 134.0W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION HERNAN NEAR 16.0N 136.5W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

.SYNOPSIS AND FORECAST.

.EXCEPT AS NOTED IN WARNINGS...WITHIN 360 NM NE AND 240 NM SW 
SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS WITHIN 360 NM N 
AND 180 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS WITHIN 270 NM N 
AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.

.LOW PRES NEAR 14N94W 1010 MB. WITHIN 240 NM NE SEMICIRCLE E 
WINDS 20 KT. SEAS TO 8 FT.  
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...15N98W 
1007 MB. WITHIN 240 NM N SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 
10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...17N102W 
1006 MB. OVER FORECAST WATERS WITHIN 240 NM N SEMICIRCLE WINDS 
20 TO 25 KT. SEAS 8 TO 11 FT. 

.S OF 06N BETWEEN 93W AND 108W WINDS LESS THAN 20 KT. SEAS TO 8 
FT IN S SWELL.
.24 HOUR FORECAST S OF 07N BETWEEN 95W AND 108W WINDS LESS THAN 
20 KT. SEAS TO 8 FT IN S SWELL. S OF 05N BETWEEN 80W AND 85W S 
WINDS TO 20 KT. SEAS TO 8 FT IN S SWELL. 
.48 HOUR FORECAST FROM 02N TO 08N BETWEEN 92W AND 105W. WINDS 
LESS THAN 20 KT. SEAS TO 8 FT IN S SWELL. 

.FROM 10N TO 18N W OF 134W NE WINDS 20 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 12N TO 18N W OF 135W NE TO E WINDS TO 20 
KT. SEAS 8 TO 10 FT IN NE SWELL.
.48 HOUR FORECAST WIND LESS THAN 20 KT. SEAS LESS THAN 8 FT.

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

.CONVECTION VALID 0245 UTC SUN AUG 10.

.HURRICANE HERNAN...SCATTERED STRONG CONVECTION NOTED WITHIN 120 
NM SE SEMICIRCLE. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE 
WITHIN 90 NM NW SEMICIRCLE AND WITHIN 180 NM OVER THE SE 
SEMICIRCLE. 

.LOW PRES NEAR 14N94W...SCATTERED MODERATE TO STRONG WITHIN 
60-75 NM OF 12.5N92.5W. 

.INTERTROPICAL CONVERGENCE ZONE...AXIS FROM 09N78W TO 11N100W TO 
15N120W TO 12N140W. SCATTERED MODERATE TO STRONG CONVECTION IS 
WITHIN 90 NM OF THE AXIS BETWEEN 82W AND 87W TO THE COAST OF 
PANAMA AND COSTA RICA. SCATTERED MODERATE/ISOLATED STRONG 
CONVECTION IS WITHIN 60-90 NM OF THE AXIS BETWEEN 108W AND 114W. 
SCATTERED MODERATE CONVECTION IS WITHIN 120 NM OF THE AXIS W OF 
130W. 

$$
.FORECASTER COBB. TROPICAL PREDICTION CENTER.