000
FZNT02 KNHC 262121
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2230 UTC SAT AUG 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 26.
24 HOUR FORECAST VALID 1800 UTC SUN AUG 27.
48 HOUR FORECAST VALID 1800 UTC MON AUG 28.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM HARVEY NEAR 29.1N 97.6W 990 MB AT 2100 UTC AUG 
26 MOVING N OR 360 DEG AT 0 KT. MAXIMUM SUSTAINED WINDS 55 KT 
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 75 NM NE 
QUADRANT...100 NM SE QUADRANT...30 NM SW QUADRANT...AND 50 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM E SEMICIRCLE AND 0 
NM W SEMICIRCLE WITH SEAS TO 14 FT. ELSEWHERE N OF 26N W OF 92W 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST TROPICAL STORM HARVEY INLAND NEAR 28.9N 97.7W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM W SEMICIRCLE...75 NM NE QUADRANT AND 100 NM SE 
QUADRANT. SEAS 8 TO 10 FT. ELSEWHERE N OF 27N W OF 95W WINDS 20 
TO 33 KT. SEAS TO 9 FT. 
.48 HOUR FORECAST TROPICAL DEPRESSION HARVEY INLAND NEAR 28.3N 
97.1W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. N OF 26N W OF 
95W WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 
.72 HOUR FORECAST TROPICAL DEPRESSION HARVEY INLAND NEAR 28.7N 
97.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION HARVEY INLAND NEAR 29.5N 
97.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION HARVEY INLAND NEAR 30.5N 
97.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 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 36 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE... 
JUST N OF AREA NEAR 31.5N80W WITH TROUGH TO NEAR 29N81W. N OF 
29N E OF TROUGH TO 77W S WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
32N79W WITH TROUGH FROM 31N80W TO 29N81W. N OF 29.5N BETWEEN 76W 
AND 79W S TO SW WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.CARIBBEAN FROM 11N TO 13.5N BETWEEN 72W AND 77W...INCLUDING 
WITHIN 90 NM OF COAST OF COLOMBIA...NE TO E WINDS 20 TO 25 KT. 
SEAS TO 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN 06 HOUR FORECAST S OF 18N W OF 85W...INCLUDING GULF 
OF HONDURAS...E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.