000
FZNT02 KNHC 202052
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI OCT 20 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI OCT 20.
24 HOUR FORECAST VALID 1800 UTC SAT OCT 21.
48 HOUR FORECAST VALID 1800 UTC SUN OCT 22.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE TAMMY NEAR 14.3N 59.2W 991 MB AT 2100 UTC OCT 20
MOVING WNW OR 290 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 65 KT
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM E
SEMICIRCLE...30 NM SW QUADRANT AND 80 NM NW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 270 NM N SEMICIRCLE...180 NM SE QUADRANT
AND 90 NM SW QUADRANT WITH SEAS TO 23 FT. ELSEWHERE WITHIN 20N53W
TO 24N56W TO 28N64W TO 20N66W TO 13N61W TO 13N56W TO 20N53W WINDS
20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE TAMMY NEAR 16.7N 61.2W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM E SEMICIRCLE...40 NM SW QUADRANT AND 80 NM NW 
QUADRANT. SEAS 12 FT OR GREATER 240 NM N SEMICIRCLE...120 NM SE 
QUADRANT...AND 45 NM SW QUADRANT WITH SEAS TO 29 FT. ELSEWHERE WITHIN
31N59W TO 31N78W TO 28N75W TO 28N69W TO 27N65W TO 27N61W TO 
31N59W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE TAMMY NEAR 19.5N 63.0W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. LITTLE CHANGE IN TROPICAL 
STORM FORCE WINDS AND SEAS 12 FT OR GREATER. ELSEWHERE WITHIN 
26N61W TO 25N65W TO 22N67W TO 20N66W TO 19N60W TO 21N58W TO 
26N61W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST HURRICANE TAMMY NEAR 22.0N 63.4W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE TAMMY NEAR 24.5N 61.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST HURRICANE TAMMY NEAR 28.4N 57.7W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 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 WITHIN 31N64W TO 31N70W TO 30N69W TO 29N68W TO 29N66W TO
31N64W S WINDS 20 TO 30 KT. SEAS 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N77W TO 29N81W.WITHIN 31N59W
TO 31N78W TO 28N75W TO 28N69W TO 27N65W TO 27N61W TO 31N59W SW 
TO W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST COLD FRONT FROM 31N65W TO 26N80W. WITHIN 
31N61W TO 31N70W TO 25N68W TO 28N63W TO 31N61W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN SW TO W SWELL.

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.