000
FZPN03 KNHC 082216
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI AUG 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FRI AUG 08.
24 HOUR FORECAST VALID 1800 UTC SAT AUG 09.
48 HOUR FORECAST VALID 1800 UTC SUN AUG 10.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HERNAN NEAR 14.8N 120.9W 980 MB AT 2100 UTC AUG 08
MOVING W OR 275 DEG AT 10 KT. 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 90 NM S
SEMICIRCLE...175 NM NE QUADRANT AND 150 NM NW QUADRANT WITH SEAS
TO 26 FT.
.24 HOUR FORECAST HURRICANE HERNAN NEAR 15.4N 124.0W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM S SEMICIRCLE...110 NM NE QUADRANT AND 100 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N AND 90 NM S 
SEMICIRCLES WITH SEAS TO 31 FT.
.48 HOUR FORECAST HURRICANE HERNAN NEAR 16.7N 127.4W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 75 NM S SEMICIRCLE...100 NM NE QUADRANT AND 90 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N AND 90 NM S 
SEMICIRCLES WITH SEAS TO 24 FT.
.72 HOUR FORECAST TROPICAL STORM HERNAN NEAR 17.0N 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 17.0N 133.0W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION HERNAN NEAR 16.5N 135.0W.
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 09N90W 1007 MB MOVING W 10 TO 15 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...12N95W 
1007 MB. WITHIN 180 NM N SEMICIRCLE 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...14N99W
1006 MB. WITHIN 240 NM N SEMICIRCLE E 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 09N TO 19N W OF 134W NE WINDS TO 20 KT. 
SEAS TO 9 FT.
.48 HOUR FORECAST FROM 11N TO 17N W OF 136W NE WINDS TO 20 KT. 
SEAS 8 TO 10 FT IN NE SWELL.

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

.CONVECTION VALID 2115 UTC FRI AUG 08.

.HURRICANE HERNAN...NUMEROUS STRONG WITHIN 60 NM E SEMICIRCLE.
SCATTERED STRONG CONVECTION ELSEWHERE WITHIN 150 NM IN THE SE 
QUADRANT...90 NM E QUADRANT AND WITHIN 60 NM IN THE NE QUADRANT. 
SCATTERED MODERATE/ISOLATED STRONG CONVECTION ELSEWHERE WITHIN 
175 NM W SEMICIRCLE. 

.INTERTROPICAL CONVERGENCE ZONE...9N85W 8N95W 11N107W WHERE IT 
TEMPORARILY ENDS. IT THEN BEGINS AGAIN AT 12N121W...AND EXTENDS 
TO 11N125W 12N134W 10N140W. SCATTERED MODERATE/ISOLATED STRONG 
CONVECTION IS WITHIN 60 NM EITHER SIDE OF THE AXIS BETWEEN 
130W-134W.

$$
.FORECASTER COBB. TROPICAL PREDICTION CENTER.