430  
FZNT02 KNHC 220247  
HSFAT2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
0430 UTC FRI SEP 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 0000 UTC FRI SEP 22.  
24 HOUR FORECAST VALID 0000 UTC SAT SEP 23.  
48 HOUR FORECAST VALID 0000 UTC SUN SEP 24.  
 
.WARNINGS.  
   
..ATLC HURRICANE WARNING
 
 
.HURRICANE MARIA NEAR 21.0N 70.2W 955 MB AT 0300 UTC SEP 22  
MOVING NW OR 320 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 110 KT  
GUSTS 135 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NW AND SE  
QUADRANTS...140 NM NE QUADRANT AND 100 NM SW QUADRANT.SEAS 12  
FT OR GREATER WITHIN 300 NM N SEMICIRCLE...180 NM SE QUADRANT  
AND 120 NM SW QUADRANT WITH SEAS TO 52 FT. ELSEWHERE WITHIN 330  
NM NE AND 150 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 16N BETWEEN 67W AND 69W...WINDS  
20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL. NUMEROUS STRONG  
WITHIN 90 NM OF CENTER. SCATTERED STRONG IN BANDS ELSEWHERE FROM  
17N TO 23N BETWEEN 65W AND 72W.  
.24 HOUR FORECAST HURRICANE MARIA NEAR 23.5N 71.5W. MAXIMUM  
SUSTAINED WINDS 105 KT GUSTS 130 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  
300 NM N SEMICIRCLE...240 NM SE AND 150 NM SW QUADRANTS WITH  
SEAS TO 53 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 330 NM NE  
AND 180 NM SW SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 10  
TO 15 FT. REMAINDER OF ATLC OPEN WATERS N OF 20N BETWEEN 63W AND  
80W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.  
.48 HOUR FORECAST HURRICANE MARIA NEAR 26.7N 72.3W. 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 OVER OPEN FORECAST WATERS WITHIN 420 NM NW AND  
330 NM SE SEMICIRCLES 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 29.3N 72.1W. MAXIMUM  
SUSTAINED WINDS 90 KT GUSTS 110 KT.  
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.  
.96 HOUR FORECAST HURRICANE MARIA NEAR 31.2N 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.  
 
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