000
FZNT02 KNHC 191007
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC THU OCT 19.
24 HOUR FORECAST VALID 0600 UTC FRI OCT 20.
48 HOUR FORECAST VALID 0600 UTC SAT OCT 21.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM TAMMY NEAR 13.5N 54.8W 1006 MB AT 0900 UTC OCT
19 MOVING W OR 280 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S
SEMICIRCLE...120 NM NE QUADRANT AND 60 NM NW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 210 NM NE QUADRANT...90 NM SE QUADRANT...30
NM SW QUADRANT...AND 120 NM NW QUADRANT WITH SEAS TO 18 FT. WITHIN
18N46W TO 21N51W TO 23N58W TO 15N59W TO 12N55W TO 10N48W TO 
18N46W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES... E WINDS 
20 TO 33 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST TROPICAL STORM TAMMY NEAR 14.5N 58.2W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE QUADRANT...80 NM SE QUADRANT...20 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 210 NM NE QUADRANT...120 NM SE QUADRANT...60 NM SW
QUADRANT AND 105 NM NW QUADRANT WITH SEAS TO 22 FT. WITHIN 
17N54W TO 16N58W TO 19N63W TO 15N62W TO 12N57W TO 13N54W TO 
17N54W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...E WINDS 
20 TO 33 KT. SEAS 10 TO 12 FT. WITHIN 19N50W TO 22N58W TO 20N63W
TO 17N55W TO 13N60W TO 10N49W TO 19N50W...INCLUDING IN ATLANTIC 
EXPOSURES AND PASSAGES AND ATLANTIC EXPOSURES...WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 
.48 HOUR FORECAST TROPICAL STORM TAMMY NEAR 16.8N 61.3W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM NE QUADRANT...100 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 150 NM E SEMICIRCLE...30 NM SW QUADRANT AND 120 NM NW 
QUADRANT WITH SEAS TO 26 FT. WITHIN 16N56W TO 20N59W TO 20N62W 
TO 16N63W TO 11N58W TO 11N55W TO 16N56W...INCLUDING IN ATLANTIC 
EXPOSURES AND PASSAGES...E TO SE WINDS 20 TO 33 KT. SEAS 10 TO 
12 FT. WITHIN 23N54W TO 25N58W TO 24N65W TO 20N65W TO 20N59W TO 
17N55W TO 23N54W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
SWELL. 
.72 HOUR FORECAST TROPICAL STORM TAMMY NEAR 19.9N 63.1W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST HURRICANE TAMMY NEAR 23.3N 63.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. 
.120 HOUR FORECAST HURRICANE TAMMY NEAR 27.2N 59.5W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 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 39 HOUR FORECAST WITHIN 31N62.5W TO 31N67.5W TO 30.5N67W
TO 30N64.5W TO 31N62.5W S WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.48 HOUR FORECAST WITHIN 31N73W TO 31N81W TO 29N81W TO 29N79W TO
29N76W TO 31N73W W WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.CARIBBEAN WITHIN 13N73W TO 13N76W TO 12N76W TO 11N75W TO 11N73W
TO 13N73W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.