000
FZNT02 KNHC 212045
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU SEP 21 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 1800 UTC THU SEP 21.
24 HOUR FORECAST VALID 1800 UTC FRI SEP 22.
48 HOUR FORECAST VALID 1800 UTC SAT SEP 23.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE MARIA NEAR 20.8N 69.8W 960 MB AT 2100 UTC SEP 21 
MOVING NW OR 315 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 105 KT 
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM W 
SEMICIRCLE...140 NM NE QUADRANT AND 130 NM SE QUADRANT.  SEAS 12 
FT OR GREATER WITHIN 270 NM N SEMICIRCLE...180 NM SE QUADRANT 
AND 120 NM SW QUADRANT WITH SEAS TO 51 FT. ELSEWHERE WITHIN 330 
NM NE AND 120 NM SW SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. 
SEAS 8 TO 11 FT. REMAINDER ATLC WATERS FROM 19N TO 31N BETWEEN 
62W AND 75W...AND CARIBBEAN N OF 15N BETWEEN 64W AND 69W...WINDS 
20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL. NUMEROUS STRONG 
WITHIN 120 NM SE AND 60 NM NW SEMICIRCLES OF CENTER. SCATTERED 
STRONG IN BANDS ELSEWHERE WITHIN 240 NM OF CENTER.
.24 HOUR FORECAST HURRICANE MARIA NEAR 23.0N 71.2W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM E SEMICIRCLE...110 NM SW QUADRANT AND 120 NM NW 
QUADRANT. SEAS 12 FT OR GREATER OVER OPEN FORECAST WATERS WITHIN 
360 NM NW AND 210 NM SE SEMICIRCLES WITH SEAS TO 52 FT. 
ELSEWHERE OVER FORECAST WATERS WITHIN 300 NM OF CENTER WINDS 20 
TO 33 KT. SEAS 10 TO 15 FT. REMAINDER OF ATLC OPEN WATERS N OF 
20N BETWEEN 62W AND 80W WINDS 20 KT OR LESS. SEAS TO 11 FT IN 
MIXED SWELL.
.48 HOUR FORECAST HURRICANE MARIA NEAR 26.1N 72.1W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 170 NM E SEMICIRCLE...130 NM SW QUADRANT AND 140 NM NW 
QUADRANT. SEAS 12 FT OR GREATER FORECAST OVER OPEN FORECAST 
WATERS WITHIN 390 NM NW AND 300 NM SE SEMICIRCLES WITH SEAS TO 
54 FT. ELSEWHERE WITHIN 300 NM OF CENTER WINDS 20 TO 33 KT. SEAS 
9 TO 15 FT OVER OPEN WATERS. REMAINDER OF OPEN WATERS N OF 20N W 
OF 64W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE MARIA NEAR 28.9N 72.1W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE MARIA NEAR 31.0N 71.0W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT.
.120 HOUR FORECAST HURRICANE MARIA NEAR 33.0N 70.0W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 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.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
 
$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.