000
FZPN03 KNHC 201005
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT AUG 20 2011

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 0600 UTC SAT AUG 20.
24 HOUR FORECAST VALID 0600 UTC SUN AUG 21.
48 HOUR FORECAST VALID 0600 UTC MON AUG 22.

.WARNINGS.
...TROPICAL STORM WARNING...
.TROPICAL STORM GREG NEAR 19.7N 119.0W 1000 MB AT 0900 UTC AUG 20
MOVING W OR 275 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 
50 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N SEMICIRCLE...
50 NM SE AND 40 NM SW QUADRANTS. SEAS 12 FT OR GREATER WITHIN 
120 NM N SEMICIRCLE...30 NM SE QUADRANT AND 90 NM SW QUADRANT 
WITH SEAS TO 18 FT.
.24 HOUR FORECAST POST TROPICAL REMNANT LOW GREG NEAR 19.7N 
122.2W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT OR 
GREATER 60 NM NW SEMICIRCLE WITH SEAS TO 14 FT.
.48 HOUR FORECAST POST TROPICAL REMNANT LOW GREG NEAR 19.2N 
125.1W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS LESS 
THAN 12 FT.
.72 HOUR FORECAST POST TROPICAL REMNANT LOW GREG NEAR 18.2N 
127.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.

.SYNOPSIS AND FORECAST.

.EXCEPT AS NOTED IN GREG WARNING...WITHIN 150 NM N AND 60 NM S 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST EXCEPT AS NOTED IN GREG WARNING...WITHIN 150 
NM NW AND 30 NM SE SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 
FT.
.48 HOUR FORECAST WITHIN 90 NM NW SEMICIRCLE OF GREG REMNANT LOW 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. 

.WITHIN 180 NM SE OF LINE FROM 13N122W TO 18N117W SW WINDS 20 TO 
25 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST WITHIN 120 NM SE OF LINE FROM 11N124W TO 
15N120W SW WINDS 20 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.FROM 05N TO 10N BETWEEN 95W AND 107W SW WINDS 20 KT. SEAS TO 9 
FT IN S SWELL.
.24 HOUR FORECAST FROM 08N TO 13N BETWEEN 100W AND 109W SW WINDS 
20 KT. SEAS TO 9 FT IN SW SWELL.
.48 HOUR FORECAST FROM 09N TO 13N BETWEEN 102W AND 108W SW WINDS 
20 KT. SEAS TO 9 FT IN S SWELL.
 
.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

CONVECTION VALID AS OF 0900 UTC SAT AUG 20...
.TROPICAL STORM GREG...SCATTERED MODERATE TO STRONG WITHIN 45 NM 
OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...MONSOON TROUGH 
FROM 11N86W TO 14N95W TO 1008 MB LOW PRES NEAR 12N102W TO 
10N109W RESUMES FROM 15N120W TO 11N132W TO 10N140W. SCATTERED 
MODERATE WITHIN 60 NM SW OF TROUGH FROM 117W TO 130W AND WITHIN 
150 NM OF TROUGH FROM 09N TO 15N BETWEEN 88W AND 105W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.