000
FZNT02 KNHC 200417
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC THU AUG 20.
24 HOUR FORECAST VALID 0000 UTC FRI AUG 21.
48 HOUR FORECAST VALID 0000 UTC SAT AUG 22.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION THIRTEEN NEAR 14.6N 47.9W 1008 MB AT 0300 
UTC AUG 20 MOVING WNW OR 295 DEG AT 17 KT. MAXIMUM SUSTAINED 
WINDS 30 KT GUSTS 40 KT. WITHIN 17N42W TO 14N43W TO 17N51W TO 
20N52W TO 21N49W TO 17N42W WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 17.4N 54.6W. 
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. ELSEWHERE...WITHIN 14N49W TO 16N56W TO 21N58W TO 22N55W
TO 18N49W TO 14N49W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 19.1N 62.1W. 
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 30 NM E 
SEMICIRCLE WITH SEAS TO 14 FT. ELSEWHERE... WITHIN 18N55W TO 
12N57W TO 18N64W TO 23N63W TO 22N56W TO 18N55W WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT. 
.72 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 20.8N 69.7W. 
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 22.9N 76.7W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. 
.120 HOUR FORECAST TROPICAL STORM THIRTEEN NEAR 26.2N 82.2W. 
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.

.ATLC WITHIN 20N70W TO 20N72W TO 21N72W TO 21N71W TO 20N70W E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. 

.CARIBBEAN LOW PRES NEAR 14N76W 1008 MB MOVING W 15 KT. WITHIN 30
NM ALL QUADRANTS WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N81W 1008 MB. WITHIN 60 NM ALL QUADRANTS WINDS 20 TO 30 KT.
SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
18N85W 1007 MB. WITHIN 18N83W TO 18N84W TO 21N87W TO 22N85W TO 
20N85W TO 18N83W...INCLUDING THE YUCATAN CHANNEL...WINDS 20 TO 
30 KT. SEAS TO 8 FT.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.