000
FZNT02 KNHC 190223
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT AUG 19 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT AUG 19.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 20.
48 HOUR FORECAST VALID 0000 UTC MON AUG 21.

.WARNINGS.

...CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL STORM HARVEY NEAR 13.7N 64.1W 1005 MB AT 0300 UTC AUG 
19 MOVING W OR 275 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N 
SEMICIRCLE AND 0 NM S SEMICIRCLE.  SEAS TO 12 FT WITHIN 0 NM S 
SEMICIRCLE...60 NM NE QUADRANT AND 45 NM NW QUADRANT. ELSEWHERE 
WITHIN 300 NM N SEMICIRCLE AND 60 NM SE QUADRANT WINDS 20 TO 33 
KT. SEAS 8 TO 10 FT. ATLC WATERS AND PASSAGES ELSEWHERE FROM 15N 
TO 20N BETWEEN 59W AND 63W WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
E SWELL. SCATTERED TO NUMEROUS TSTMS FROM 11N TO 15N BETWEEN 
63.5W AND 68W.
.24 HOUR FORECAST TROPICAL STORM HARVEY NEAR 14.3N 70.4W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER 
WITHIN 90 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW QUADRANT 
AND 45 NM NW QUADRANT WITH SEAS TO 16 FT. ELSEWHERE WITHIN 240 
NM N SEMICIRCLE AND 150 NM SE QUADRANT WINDS 20 TO 33 KT. SEAS 8 
TO 11 FT.  
.48 HOUR FORECAST TROPICAL STORM HARVEY NEAR 14.8N 78.1W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER 
WITHIN 120 NM NE QUADRANT...75 NM SE QUADRANT...30 NM SW 
QUADRANT AND 60 NM NW QUADRANT WITH SEAS TO 21 FT. ELSEWHERE 
WITHIN 270 NM NE AND 75 NM SW SEMICIRCLES WINDS 20 TO 33 KT. 
SEAS 8 TO 11 FT. 
.72 HOUR FORECAST TROPICAL STORM HARVEY NEAR 16.5N 84.7W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM HARVEY INLAND NEAR 18.0N 89.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM HARVEY OVER WATER NEAR 19.0N 
92.5W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 19N54.5W 1012 MB MOVING NW 18 KT. WITHIN 270 
NM NE SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. SCATTERED 
TSTMS WITHIN 150 NM NE SEMICIRCLE.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
21N62.5W 1012 MB. WITHIN 240 NM NE SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
22N70W 1013 MB. WITHIN 180 NM N SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS TO 9 FT. FROM 19.5N TO 22N BETWEEN 71W AND 77W...INCLUDING 
APPROACH TO WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS 
LESS THAN 8 FT.

.ATLC FROM 13.5N TO 20N BETWEEN 35W AND 38.5W WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN MIXED NE AND S SWELL.
.24 HOUR FORECAST FROM 17N TO 22N BETWEEN 41W AND 50W WINDS 20 
TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST FROM 19.5N TO 23.5N BETWEEN 48W AND 54W WINDS 
20 TO 25 KT. SEAS 8 TO 10 FT.

.ATLC WITHIN AREA BOUNDED BY 21N73W TO 21N70.5W TO 20N70.5W TO 
20N73W TO 21N73W...INCLUDING APPROACH TO WINDWARD PASSAGE...E 
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 21N74W TO 21N70.5W TO 
20N70.5W TO 20N74W...INCLUDING APPROACH TO WINDWARD PASSAGE... 
NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS TO MERGE WITH POSSIBLE TROPICAL 
CYCLONE ABOVE. 

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.