000
FZNT02 KNHC 182052
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC MON MAY 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MON MAY 18.
24 HOUR FORECAST VALID 1800 UTC TUE MAY 19.
48 HOUR FORECAST VALID 1800 UTC WED MAY 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC TROPICAL STORM ARTHUR NEAR 36.1N 73.9W 993 MB AT 2100 UTC 
MAY 18 MOVING NE OR 045 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 45 
KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E 
SEMICIRCLE...0 NM SW QUADRANT AND 40 NM NW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 90 NM N SEMICIRCLE...120 NM SE QUADRANT AND 60 
NM SW QUADRANT WITH SEAS TO 21 FT.
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL ARTHUR NEAR 37.0N 
68.7W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL ARTHUR NEAR 34.8N 
65.5W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. 
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL ARTHUR NEAR 33.0N 
64.8W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. EXTENDED 
OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST POST- TROPICAL REMNANT LOW ARTHUR NEAR 31.5N 
64.8W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST...DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND
INTENSITY.

.ATLC 48 HOUR FORECAST WITHIN 30.5N71W TO 30.5N74W TO 31N75.5W
TO 31N69W TO 30.5N71W WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NE 
SWELL.

.CARIBBEAN WITHIN 12N69W TO 12N73W TO 14N75W TO 15N75W TO 14N71W
TO 12N69W E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN
13N68W TO 12N76W TO 15N78W TO 16N74W TO 13N68W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN NE TO E SWELL. 
.24 HOUR FORECAST WITHIN 12N72W TO 12N73W TO 13N73W TO 14N73W TO
12N72W E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 
13N71W TO 12N77W TO 14N78W TO 16N77W TO 16N73W TO 13N71W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.36 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 STRIPLING. NATIONAL HURRICANE CENTER.