000
FZNT02 KNHC 202126
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT AUG 20 2016

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 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 FIONA NEAR 21.2N 49.1W 1008 MB AT 2100 UTC AUG
20 MOVING NW OR 305 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N
SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 0
NM S SEMICIRCLE...90 NM NE QUADRANT AND 60 NM NW QUADRANT WITH
SEAS TO 13 FT. ELSEWHERE WITHIN 210 NM NE AND 90 NM SW
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST TROPICAL DEPRESSION FIONA NEAR 23.1N 53.6W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 210 NM NE AND
60 NM SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW FIONA NEAR 25.0N
58.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 180 NM
NE AND 60 NM SW SEMICIRCLES WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW FIONA NEAR 27.0N
62.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW FIONA NEAR 29.5N
65.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST...DISSIPATED.

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 12 HOUR FORECAST LOW PRES NEAR 12N41W 1009 MB. WITHIN 300
NM N SEMICIRCLE OF LOW NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 12N43W 1009 MB. WITHIN 300 NM N
SEMICIRCLE OF LOW WINDS 20 KT OR LESS. SEAS TO 8 FT PRIMARILY
IN E SWELL.
.48 HOUR FORECAST LOW PRES NEAR 12N49W 1008 MB. WITHIN 420 NM N
SEMICIRCLE OF LOW E WINDS 20 KT OR LESS. SEAS TO 9 FT PRIMARILY
IN E SWELL.

.CARIBBEAN FROM 11N TO 14N BETWEEN 72W AND 78W NE TO E WINDS 20
TO 25 KT. SEAS TO 8 FT. FROM 11N TO 14N BETWEEN 78W TO 80W WINDS
20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL.
.24 HOUR FORECAST FROM 10.5N TO S OF A LINE FROM 13N69W TO
16N74W TO 16N82W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO 30 HOUR FORECAST FROM 20N TO 23N BETWEEN 88W AND
94W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 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 MCELROY. NATIONAL HURRICANE CENTER.