000
FZNT02 KNHC 200941
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU AUG 20 2020

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 20.
24 HOUR FORECAST VALID 0600 UTC FRI AUG 21.
48 HOUR FORECAST VALID 0600 UTC SAT AUG 22.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION THIRTEEN NEAR 15.2N 49.8W 1008 MB AT 0900
UTC AUG 20 MOVING WNW OR 295 DEG AT 18 KT. MAXIMUM SUSTAINED
WINDS 30 KT GUSTS 40 KT. WITHIN 17N47W TO 16N49W TO 17N51W TO
18N50W TO 18N48W TO 17N47W WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 
ELSEWHERE...WITHIN 17N44W TO 14N46W TO 16N50W TO 19N53W TO 21N49W
TO 17N44W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 17.5N 56.4W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 40 NM E SEMICIRCLE...0 NM SW QUADRANT AND 30 NM NW 
QUADRANT. SEAS 12 FT OR GREATER 60 NM NE QUADRANT WITH SEAS TO 13
FT. ELSEWHERE...WITHIN 17N54W TO 17N58W TO 20N59W TO 20N55W TO 
20N54W TO 17N54W WINDS 20 TO 30 KT. SEAS 10 TO 12 FT. REMAINDER 
OF AREA...WITHIN 17N51W TO 16N55W TO 18N60W TO 22N58W TO 22N53W 
TO 17N51W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 19.1N 63.9W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 90 NM NE QUADRANT...80 NM SE QUADRANT...0 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER 120 NM NE
QUADRANT AND 60 NM SE AND NW QUADRANTS WITH SEAS TO 17 FT. 
ELSEWHERE...WITHIN 18N59W TO 19N65W TO 19N66W TO 22N64W TO 20N60W
TO 18N59W WINDS 20 TO 30 KT. SEAS 10 TO 12 FT. REMAINDER OF 
AREA...WITHIN 11N59W TO 18N62W TO 19N66W TO 24N64W TO 22N57W TO 
11N59W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 20.8N 71.0W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 23.0N 78.0W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 26.0N 83.0W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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 LOW PRES NEAR 15N77W 1008 MB MOVING W 18 KT. WITHIN 
14N73W TO 15N77W TO 16N78W TO 16N75W TO 15N74W TO 14N73W E TO SE 
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE...WITHIN 13N73W TO
13N74W TO 14N77W TO 16N78W TO 17N73W TO 13N73W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN NE SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
16N82W 1007 MB. WITHIN 16N80W TO 15N82W TO 16N83W TO 17N82W TO 
18N81W TO 16N80W WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
18N86W 1006 MB. WITHIN 18N83W TO 17N85W TO 19N87W TO 22N86W TO 
22N85W TO 18N83W...INCLUDING THE YUCATAN CHANNEL...WINDS 20 TO 
30 KT. SEAS 8 TO 10 FT IN PRIMARILY NE SWELL.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.