000
FZPN03 KNHC 202146
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SAT AUG 20.
24 HOUR FORECAST VALID 1800 UTC SUN AUG 21.
48 HOUR FORECAST VALID 1800 UTC MON AUG 22.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM GREG AT 19.9N 120.5W 1006 MB AT 2100 UTC AUG 20 
MOVING W-NW OR 285 DEG AT 8 KT.  MAXIMUM SUSTAINED WIND 35 GUSTS 
45 KT.  TROPICAL STORM FORCE WIND WITHIN 30 NM N SEMICIRCLE. 
SEAS 12 FT WITHIN 60 NM N AND 30 NM S SEMICIRCLES WITH SEAS UP 
TO 12 FT.
.24 HOUR FORECAST  POST-TROPICAL REMNANT LOW GREG NEAR 19.7N 
123.1W.  MAXIMUM SUSTAINED WIND 25 GUSTS 35 KT.  SEAS LESS THAN 
12 FT.
.48 HOUR FORECAST  POST-TROPICAL REMNANT LOW GREG NEAR 18.9N 
125.9W.  MAXIMUM SUSTAINED WIND 20 GUSTS 25 KT.  SEAS LESS THAN 
12 FT.

.SYNOPSIS AND FORECAST.

.EXCEPT AS NOTED IN GREG WARNING...WITHIN 45 NM N SEMICIRCLE 
WINDS TO 33 KT.  SEAS 8 TO 12 FT.  ELSEWHERE WITHIN 60 NM OF 
GREG  WINDS 20 TO 25 KT.  SEAS TO 8 FT. 
.24 HOUR FORECAST  WITHIN 30 NM N SEMICIRCLE  WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT.
.48 HOUR FORECAST  WITHIN 30 NM NW SEMICIRCLE  WINDS 20 KT.
SEAS 8 FT. 

.WITHIN 120 NM SE OF LINE FROM 11N126W TO 16N118W  SW WINDS 20 
TO 25 KT. SEAS 9 TO 11 FT.
.24 HOUR FORECAST  WITHIN 90 NM SE OF LINE FROM 10N127W TO 
14N121W  SW WINDS 20 KT.  SEAS 8 TO 9 FT.
.48 HOUR FORECAST  WINDS LESS THAN 20 KT.  SEAS LESS THAN 8 FT.

.LOW PRES 1010 MB AT 13N104W.  WITHIN 120 NM SE QUADRANT  SW 
WINDS 20 KT.  SEAS TO 10 FT.  S OF 11N FROM 95W TO 122W  WINDS 
LESS THAN 20 KT.  SEAS TO 9 FT IN S SWELL.
.24 HOUR FORECAST  LOW PRES 1010 MB NEAR 12N106W.  WITHIN 60 NM 
SE QUADRANT  WINDS 20 KT.  SEAS TO 9 FT.  S OF 05N FROM 95W TO 
110W  WINDS LESS THAN 20 KT.  SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST  LOW PRES 1010 MB NEAR 12N109W.  WITHIN 45 NM 
SE QUADRANT  WINDS 20 KT.  SEAS TO 8 FT.  S OF 06N FROM 98W TO 
116W  WINDS LESS THAN 20 KT.  SEAS TO 8 FT IN SW SWELL.
 
.REMAINDER OF AREA  WINDS LESS THAN 20 KT.  SEAS LESS THAN 8 FT.

CONVECTION VALID AS OF 2100 UTC SAT AUG 20...
.TROPICAL STORM GREG...SCATTERED MODERATE WITHIN 45 NM S AND 30 
NM N SEMICIRCLES.  SCATTERED MODERATE WITHIN 45 NM OF 16N118W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...FROM 11N86W TO 
15N96W TO 1010 MB LOW PRES AT 13N104W TO 10N111W THEN FROM 
17N123W TO 10N137W TO 10N140W.  SCATTERED MODERATE WITHIN 180 NM 
S OF AXIS E OF 109W AND SE OF AXIS FROM 123W TO 128W.

$$
.FORECASTER WALLY BARNES.  NATIONAL HURRICANE CENTER.