High Seas Forecast
Issued by NWS

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000
FZNT02 KNHC 231451
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED AUG 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC WED AUG 23.
24 HOUR FORECAST VALID 1200 UTC THU AUG 24.
48 HOUR FORECAST VALID 1200 UTC FRI AUG 25.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION HARVEY NEAR 21.5N 92.5W 1006 MB AT 1500 UTC
AUG 23 MOVING NW OR 310 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. WITHIN 150 NM N SEMICIRCLE WINDS 20 TO 30 KT.
SEAS 8 TO 10 FT.
.24 HOUR FORECAST TROPICAL STORM HARVEY NEAR 23.8N 93.9W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND
30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM N AND 50
NM S SEMICIRCLES WITH SEAS TO 14 FT. ELSEWHERE WITHIN 150 NM NE
AND 90 NM SW SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO
11 FT.
.48 HOUR FORECAST TROPICAL STORM HARVEY NEAR 26.7N 96.3W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...50 NM SW
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER OVER
FORECAST WATERS WITHIN 180 NM NE AND 60 NM SW SEMICIRCLES WITH
SEAS TO 19 FT. ELSEWHERE OVER FORECAST WATERS N OF 24N W OF 90W
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST TROPICAL STORM HARVEY INLAND NEAR 29.0N 97.3W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM HARVEY INLAND NEAR 29.8N 96.9W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST TROPICAL STORM HARVEY INLAND NEAR 30.0N
95.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 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.

.CARIBBEAN 24 HOUR FORECAST S OF 13.5N BETWEEN 70W AND 72W E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST S OF 15N BETWEEN 71W AND 74W E WINDS 20 TO 25
KT. SEAS TO 8 FT.

.CARIBBEAN 42 HOUR FORECAST S OF 18N W OF 86W...INCLUDING GULF
OF HONDURAS... E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$

.FORECASTER AL. NATIONAL HURRICANE CENTER.



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