000
FZNT02 KNHC 010402
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT AUG 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT AUG 01.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 02.
48 HOUR FORECAST VALID 0000 UTC MON AUG 03.

.WARNINGS.

...ATLC HURRICANE WARNING... 
.HURRICANE ISAIAS NEAR 23.3N 76.4W 987 MB AT 0300 UTC AUG 01 
MOVING NW OR 310 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 70 KT 
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE 
QUADRANT...70 NM SE QUADRANT...30 NM SW QUADRANT...AND 130 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM N SEMICIRCLE...150 
NM SE QUADRANT AND 90 NM SW QUADRANT WITH SEAS TO 26 FT. 
ELSEWHERE WITHIN 20N70W TO 23N78W TO 25N80W TO 27N78W TO 27N75W 
TO 20N70W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA 
WITHIN 24N70W TO 22N71W TO 27N75W TO 31N79W TO 31N73W TO 24N70W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN E TO SE SWELL.
.24 HOUR FORECAST HURRICANE ISAIAS NEAR 25.9N 79.1W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...40 NM SW 
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
120 NM NE QUADRANT...0 NM SE QUADRANT...60 NM SW QUADRANT...AND 
100 NM NW QUADRANT WITH SEAS TO 23 FT. ELSEWHERE WITHIN 27N76W 
TO 25N77W TO 25N80W TO 28N80W TO 29N78W TO 27N76W WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 28N75W TO 28N77W 
TO 28N80W TO 31N80W TO 31N77W TO 28N75W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN E TO SE SWELL.
.48 HOUR FORECAST HURRICANE ISAIAS NEAR 25.9N 79.1W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...40 NM SW 
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
180 NM NE QUADRANT...90 NM SE QUADRANT...20 NM SW QUADRANT...AND 
90 NM NW QUADRANT WITH SEAS TO 24 FT. ELSEWHERE WITHIN 28N77W TO 
27N80W TO 30N79W TO 30N81W TO 30N78W TO 28N77W WINDS 20 TO 33 KT.
SEAS 8 TO 12 FT IN E TO SE SWELL. REMAINDER OF AREA WITHIN 
29N76W TO 28N78W TO 30N81W TO 31N81W TO 31N77W TO 29N76W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL.
.60 HOUR FORECAST TROPICAL STORM ISAIAS NEAR 30.2N 80.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.72 HOUR FORECAST TROPICAL STORM ISAIAS NEAR 33.1N 78.9W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM ISAIAS NEAR 41.0N 72.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL ISAIAS NEAR 47.5N 
64.0W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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 48 HOUR FORECAST TROUGH FROM 22N57W TO 17N59W. WITHIN 
18N57W TO 19N59W TO 22N59W TO 22N57W TO 21N56W TO 18N57W E TO SE 
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.

.CARIBBEAN WITHIN 13N69W TO 13N71W TO 17N71W TO 17N69W TO
13N69W E TO SE WINDS 20 TO 25 KT. SEAS 8 FT.
.18 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 STRIPLING. NATIONAL HURRICANE CENTER.