000
FZNT02 KNHC 201000
HSFAT2

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO

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 HARVEY NEAR 16.4N 86.5W 994 MB AT 0900 UTC AUG
20 MOVING W OR 275 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 35 NM N
SEMICIRCLE...20 NM SE QUADRANT AND 0 NM SW QUADRANT.  SEAS 12 FT
OR GREATER WITHIN 45 NM N SEMICIRCLE AND 15 NM S SEMICIRCLE WITH
SEAS TO 14 FT.
.24 HOUR FORECAST TROPICAL STORM HARVEY INLAND NEAR 16.7N 89.6W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM NE QUADRANT...35 NM SE QUADRANT...15 NM SW 
QUADRANT...AND 45 NM NW QUADRANT. SEAS LESS THAN 12 FT OVER 
FORECAST WATERS.
.48 HOUR FORECAST TROPICAL DEPRESSION HARVEY INLAND NEAR 17.2N 
94.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS LESS THAN 
12 FT OVER FORECAST WATERS.
.72 HOUR FORECAST...DISSIPATED.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 14N53W 1007 MB. FROM 14N TO 21N BETWEEN 50W 
AND 57W WINDS 20 TO 25 KT. SEAS TO 11 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
16N60W 1004 MB. FROM 15N TO 23N BETWEEN 50W AND 63W NE TO E 
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW PRES W OF AREA IN NE CARIBBEAN. OVER ATLC 
WATERS FROM 17N TO 24N BETWEEN 55W AND 70W E WINDS 20 TO 30 KT. 
SEAS 8 TO 13 FT.

.ATLC FROM 17N TO 22N E OF 45W NE TO E WINDS 20 KT. SEAS 8 FT.
.24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
21N35W 1006 MB. FROM 21N TO 25N E OF 38W NE TO E WINDS 20 KT. 
SEAS LESS THAN 8 FT.

.ATLC S OF 22N W OF 70W E WINDS 20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.CARIBBEAN EXCEPT AS NOTED IN WARNINGS...OVER FORECAST WATERS  
WITHIN 120 NM N SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST EXCEPT AS NOTED WARNING...OVER FORECAST WATERS 
S OF 18N W OF 85W E TO SE WINDS 20 KT. SEAS 8 FT.
.36 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.CARIBBEAN 24 HOUR FORECAST N OF 15N E OF 65W NE WINDS 20 KT. 
SEAS LESS THAN 8 FT.
.36 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
17N63.5W 1006 MB. N OF 15N E OF 70W NE WINDS 20 TO 30 KT. SEAS 8 
TO 12 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
17.9N 66.1W 1006 MB. N OF 15N E OF 72W WINDS 20 TO 30 KT. SEAS 8 
TO 12 FT.

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.