000
FZNT02 KNHC 202310 RRA
HSFAT2

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

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 HARVEY NEAR 17.2N 88.8W 998 MB AT 2100 UTC AUG
20 MOVING WNW OR 285 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM N
SEMICIRCLE AND 15 NM S SEMICIRCLE.  SEAS 12 FT OR GREATER WITHIN
45 NM N SEMICIRCLE AND 15 NM S SEMICIRCLE WITH SEAS TO 15 FT.
.24 HOUR FORECAST TROPICAL DEPRESSION HARVEY INLAND NEAR 17.7N 
92.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS LESS THAN 
12 FT.
.36 HOUR FORECAST POST TROPICAL REMNANT LOW HARVEY NEAR 17.9N 
94.9W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.48 HOUR FORECAST...DISSIPATED.

...HURRICANE WARNING...
.TROPICAL STORM IRENE SPECIAL NEAR 14.9N 58.5W 1006 MB AT 2300
UTC AUG 20 MOVING W OR 280 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS
45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S
SEMICIRCLE...105 NM NE QUADRANT AND 45 NM NW QUADRANT.SEAS 12
FT OR GREATER WITHIN 0 NM OF CENTER EXCEPT 480 NM NE QUADRANT
WITH SEAS TO 13 FT.
.24 HOUR FORECAST TROPICAL STORM SPECIAL NEAR 16.1N 64.4W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 30 NM S SEMICIRCLE...105 NM NE QUADRANT AND 60 NM 
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NE...90 NM 
NW...AND 30 NM S SEMICIRCLE WITH SEAS TO 15 FT.
.48 HOUR FORECAST HURRICANE SPECIAL NEAR 17.5N 69.6W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 45 NM S SEMICIRCLE...90 NM NE QUADRANT AND 60 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NE...120 NM 
NW...AND 45 NM S SEMICIRCLE WITH SEAS TO 18 FT.
.72 HOUR FORECAST TROPICAL STORM SPECIAL NEAR 19.0N 74.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM SPECIAL NEAR 21.5N 77.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM SPECIAL NEAR 24.0N 79.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES E OF AREA 16N26W 1007 MB. FROM 17N TO 24N E OF 
45W NE TO E WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...E OF 
AREA NEAR 18N30W 1006 MB. FROM 17N TO 25N E OF 37W NE WINDS 20 
KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
21N34W 1005 MB. FROM 18N TO 29N E OF 40W N TO NE WINDS 20 TO 25 
KT. SEAS TO 10 FT PRIMARILY IN E SWELL.

.ATLC/CARIBBEAN EXCEPT AS NOTED IN IRENE WARNING...WITHIN 480 NM 
NW AND 600 NM NE QUADRANTS AND WINDS 20 TO 33 KT. SEAS 8 TO 11 
FT. 
.24 HOUR FORECAST EXCEPT AS NOTED IN IRENE WARNING...WITHIN 480 
NM NW...600 NM NE...330 NM SE...AND 210 NM SW QUADRANTS WINDS 20 
TO 33 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST EXCEPT AS NOTED IN IRENE WARNING...WITHIN 510 
NM N SEMICIRCLE...270 SE AND 180 NM SW QUADRANTS WINDS 20 TO 33 
KT. SEAS 8 TO 11 FT.  

.CARIBBEAN EXCEPT AS NOTED IN HARVEY WARNING...OVER FORECAST 
WATERS WITHIN 120 NM NE AND 30 NM SE QUADRANTS WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO 24 HOUR FORECAST TROUGH S OF 22N ALONG 93W. 
WITHIN 60 NM OF TROUGH NE TO E WINDS 20 KT. SEAS LESS THAN 8 FT. 
SCATTERED TSTMS.
.48 HOUR FORECAST TROUGH S OF 22N ALONG 95W. WITHIN 120 NM OF 
TROUGH NE TO E WINDS 20 KT. SEAS LESS THAN 8 FT. SCATTERED 
TSTMS.   

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

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.