000
FZNT02 KNHC 011556
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT AUG 1 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SAT AUG 1.
24 HOUR FORECAST VALID 1200 UTC SUN AUG  2.
48 HOUR FORECAST VALID 1200 UTC MON AUG  3.

.WARNINGS.

...ATLC HURRICANE WARNING... 
.HURRICANE ISAIAS NEAR 24.7N 77.9W 987 MB AT 1500 UTC AUG 01 
MOVING NW OR 315 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 70 KT 
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM N 
SEMICIRCLE...70 NM SE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 180 NM NE QUADRANT...60 NM SE QUADRANT...0 NM 
SW QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 18 FT. 
ELSEWHERE WITHIN 23N73W TO 23N76W TO 24N80W TO 27N79W TO 25N72W 
TO 23N73W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA 
WITHIN 25N70W TO 21N71W TO 24N75W TO 31N81W TO 31N75W TO 25N70W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL. 
.24 HOUR FORECAST HURRICANE ISAIAS NEAR 27.1N 79.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE QUADRANT...70 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
150 NM NE QUADRANT...75 NM SE QUADRANT...60 NM SW QUADRANT...AND 
120 NM NW QUADRANT WITH SEAS TO 27 FT. ELSEWHERE WITHIN 24N75W 
TO 26N78W TO 24N80W TO 31N81W TO 31N75W TO 24N75W WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE ISAIAS NEAR 30.1N 80.4W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NW AND SE QUADRANTS...100 NM NE QUADRANT AND 30 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM NE 
QUADRANT...120 NM SE QUADRANT...45 NM SW QUADRANT...AND 90 NM NW 
QUADRANT WITH SEAS TO 30 FT. ELSEWHERE WITHIN 28N77W TO 27N79W TO
29N81W TO 31N81W TO 31N76W TO 28N77W WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT.
.60 HOUR FORECAST TROPICAL STORM ISAIAS NEAR 32.6N 79.4W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. 
.72 HOUR FORECAST TROPICAL STORM ISAIAS INLAND NEAR 36.0N 76.9W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST TROPICAL STORM ISAIAS OVER WATER NEAR 43.3N 
69.7W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. 
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL ISAIAS NEAR 49.0N
57.9W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 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 16N50W TO 16N52W TO 18N53W TO 18N51W TO 16N50W
WINDS 20 KT OR LESS. SEAS 8 FT IN E TO SE SWELL.
.24 HOUR FORECAST TROUGH FROM 22N55W TO 17N59W. WITHIN 18N54W TO
18N58W TO 19N59W TO 21N58W TO 20N54W TO 18N54W E TO SE WINDS 20 
TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST TROUGH FROM 25N63W TO 20N65W. WITHIN 23N60W TO
21N63W TO 23N66W TO 26N66W TO 24N60W TO 23N60W E TO SE WINDS 20 
TO 30 KT. SEAS 8 TO 10 FT IN NE SWELL.

.CARIBBEAN WITHIN 12N69W TO 13N74W TO 16N75W TO 16N70W TO 14N68W
TO 12N69W E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.12 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 B REINHART. NATIONAL HURRICANE CENTER.