000
FZNT02 KNHC 192217
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SAT AUG 19.
24 HOUR FORECAST VALID 1800 UTC SUN AUG 20.
48 HOUR FORECAST VALID 1800 UTC MON AUG 21.

.WARNINGS.

...CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL DEPRESSION HARVEY NEAR 14.1N 70.0W 1007 MB AT 2100 UTC 
AUG 19 MOVING W OR 275 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS 30 
KT GUSTS 40 KT. WITHIN 240 NM N SEMICIRCLE AND 150 NM SE 
QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.24 HOUR FORECAST TROPICAL STORM HARVEY NEAR 14.6N 77.0W.
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 120 NM NE QUADRANT. ELSEWHERE WITHIN 240 NM N AND 
75 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST TROPICAL STORM HARVEY NEAR 16.0N 83.8W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 70 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS 12 
FT OR GREATER WITHIN 120 NM NE QUADRANT WITH SEAS TO 15 FT. 
ELSEWHERE WITHIN 210 NM NE AND 60 NM SW SEMICIRCLES WINDS 20 TO 
33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST TROPICAL STORM HARVEY INLAND NEAR 18.0N 89.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION HARVEY OVER WATER NEAR 
19.0N 92.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST TROPICAL STORM HARVEY NEAR 19.5N 94.0W.
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 FROM 20N TO 24N BETWEEN 56W AND 64W WINDS 20 TO 30 KT. 
SEAS 8 TO 12 FT. ELSEWHERE FROM 19N TO 25N BETWEEN 56W AND 67W 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN E SWELL.
.24 HOUR FORECAST FROM 21N TO 26N BETWEEN 65W AND 69W E TO SE 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 24N69W TO 23N70W TO 
25N72W TO 26N72W TO 26N70W TO 25N69W TO 24N69W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN MIXED NE AND SE SWELL.

.ATLC FROM 15.5N TO 22N BETWEEN 38W AND 52W WINDS 20 TO 25 KT. 
SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 19N TO 24N BETWEEN 46W AND 52W WINDS 20 
TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 21N50W TO 20N53W TO 
22N56W TO 24N55W TO 26N52W TO 25N49W TO 21N50W NE TO E WINDS 20 
TO 25 KT. SEAS 8 TO 10 FT.

.ATLC 06 HOUR FORECAST WITHIN AREA BOUNDED BY 21N73W TO 21N70W 
TO 20N70W TO 20N73W TO 21N73W...INCLUDING APPROACH TO WINDWARD 
PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS BUILDING TO 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 48 HOUR FORECAST WITHIN AREA BOUNDED BY 18N35W TO 20N36W
TO 21N36W TO 23N35W TO 18N35W WINDS 20 KT OR LESS. SEAS TO 8 FT
IN MIXED SWELL.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.