000
FZPN03 KNHC 090307
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT AUG 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT AUG 09.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 10.
48 HOUR FORECAST VALID 0000 UTC MON AUG 11.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HERNAN NEAR 15.1N 121.7W 977 MB AT 0300 UTC AUG 09
MOVING WNW OR 285 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM OF CENTER 
EXCEPT 75 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM NW 
AND SE QUADRANTS...180 NM NE QUADRANT AND 90 NM SW QUADRANT WITH 
SEAS TO 27 FT.
.24 HOUR FORECAST HURRICANE HERNAN NEAR 16.0N 124.6W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM S SEMICIRCLE...110 NM NE QUADRANT AND 100 NM NW 
QUADRANT. LITTLE CHANGE IN RADIUS OF SEAS 12 FT OR GREATER WITH 
SEAS TO 27 FT.
.48 HOUR FORECAST TROPICAL STORM HERNAN NEAR 17.1N 127.7W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 90 NM N SEMICIRCLE AND 75 NM S SEMICIRCLE. SEAS 12 
FT OR GREATER WITHIN 150 NM N AND 90 NM S SEMICIRCLES WITH SEAS 
TO 23 FT.
.72 HOUR FORECAST TROPICAL STORM HERNAN NEAR 17.5N 130.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM HERNAN NEAR 17.5N 132.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION HERNAN NEAR 16.5N 134.5W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

.SYNOPSIS AND FORECAST.

.EXCEPT AS NOTED IN WARNINGS...WITHIN 240 NM NW AND 360 NM SE 
SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS WITHIN 300 NM NW 
AND 420 NM SE SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS WITHIN 420 NM N 
AND 240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.

.LOW PRES NEAR 11N90W 1008 MB MOVING WNW 10 KT. WITHIN 240 NM 
N SEMICIRCLE OVER FORECAST WATERS...INCLUDING GULF OF 
PAPAGAYO...NE TO E WINDS 20 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...12N96W 
1007 MB. WITHIN 240 NM NE SEMICIRCLE OVER FORECAST WATERS NE TO 
E WINDS 20 TO 25 KT. SEAS TO 9 FT. S OF 08N BETWEEN 92W AND 102W 
WINDS LESS THAN 20 KT. SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...13N99W 
1006 MB. WITHIN 240 NM N SEMICIRCLE E TO SE WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. S OF 08N BETWEEN 92W AND 105W WINDS LESS THAN 
20 KT. SEAS TO 8 FT IN SW SWELL.

.COLD FRONT ENTERING NW PART OF AREA ALONG 30N136W 29N140W. N OF 
FRONT N WINDS 20 KT. SEAS LESS THAN 8 FT.  
.24 HOUR FORECAST FRONT DISSIPATED. WINDS LESS THAN 20 KT. SEAS 
LESS THAN 8 FT. 

.FROM 12N TO 25N W OF 128W NE WINDS 20 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 10N TO 18N W OF 135W NE TO E WINDS 20 KT. 
SEAS TO 9 FT.
.48 HOUR FORECAST FROM 11N TO 17N W OF 136W NE WINDS TO 20 KT. 
SEAS TO 9 FT.

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

.CONVECTION VALID 0245 UTC SAT AUG 09.

.HURRICANE HERNAN...NUMEROUS STRONG WITHIN 60 NM OF CENTER.
SCATTERED MODERATE TO STRONG CONVECTION ELSEWHERE WITHIN 150 NM 
S AND 90 N SEMICIRCLES. SCATTERED MODERATE/ISOLATED STRONG 
CONVECTION ELSEWHERE WITHIN 240 NM SW QUADRANT.

.LOW PRES NEAR 11N90W...SCATTERED MODERATE TO STRONG FROM 10N TO 
14N BETWEEN 91W AND 94W. 

.INTERTROPICAL CONVERGENCE ZONE...11N86W TO 09N96W TO 11N105W TO 
14N117W TO 12N130W TO 11N140W. SCATTERED MODERATE ISOLATED 
ISOLATED STRONG WITHIN 120-150 NM OF THE AXIS BETWEEN 106W AND 
113W...WITHIN 120 NM OF THE AXIS W OF 134W. SCATTERED MODERATE 
WITHIN 180 NM S OF THE AXIS BETWEEN 118W AND 125W.

$$
.FORECASTER COBB. TROPICAL PREDICTION CENTER.