000
FZNT02 KNHC 041509
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC MON SEP 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MON SEP 04.
24 HOUR FORECAST VALID 1200 UTC TUE SEP 05.
48 HOUR FORECAST VALID 1200 UTC WED SEP 06.

.WARNINGS.

...ATLC AND CARIBBEAN HURRICANE WARNING...

.HURRICANE IRMA NEAR 16.8N 53.3W 944 MB AT 1500 UTC SEP 04 
MOVING   WSW OR 255 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 105 KT 
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE... 90 
NM SE...60 NM SW AND 100 NM NW QUADRANTS. SEAS 12 FT OR GREATER 
WITHIN 270 NM N SEMICIRCLE...120 NM SE AND 150 NM SW QUADRANTS 
WITH SEAS TO 40 FT. ELSEWHERE WITHIN 300 NM N AND 180 NM S 
SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. 
REMAINING WATERS FROM 09N TO 27N BETWEEN 45W AND 60W WINDS 20 KT 
OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED SWELL. NUMEROUS TSTMS 
IN BANDS WITHIN 150 NM N AND 120 NM S SEMICIRCLES OF IRMA. 
.24 HOUR FORECAST HURRICANE IRMA NEAR 16.7N 57.1W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM NE...100 NM SE...70 NM SW AND 110 NM NW QUADRANTS.
SEAS 12 FT OR GREATER WITHIN 360 NM N AND 210 NM S SEMICIRCLES 
WITH SEAS TO 43 FT. ELSEWHERE WITHIN 390 NM N AND 240 NM S 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER WATERS 
S OF 27N BETWEEN 51W AND 65W WINDS 20 KT OR LESS. SEAS TO 10 FT 
PRIMARILY IN MIXED SWELL. NUMEROUS TSTMS IN BANDS WITHIN 150 NM 
N AND 120 NM S SEMICIRCLES OF IRMA. 
.48 HOUR FORECAST HURRICANE IRMA NEAR 18.2N 62.4W. MAXIMUM 
SUSTAINED WINDS 125 KT GUSTS 150 KT. TROPICAL STORM FORCE WINDS 
WITHIN 160 NM NE..130 NM SE...90 NM SW AND 140 NM NW QUADRANTS. 
SEAS 12 FT OR GREATER WITHIN 420 NM N AND 240 NM S SEMICIRCLES 
WITH SEAS TO 45 FT. ELSEWHERE WITHIN 480 NM N AND 270 NM S 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER WATERS 
FROM 11N TO 30N BETWEEN 53W AND 71W WINDS 20 KT OR LESS. SEAS TO 
10 FT PRIMARILY IN MIXED SWELL. NUMEROUS TSTMS IN BANDS WITHIN 
150 NM N AND 120 NM S SEMICIRCLES OF IRMA. 
.72 HOUR FORECAST HURRICANE IRMA NEAR 19.9N 68.0W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE IRMA NEAR 21.2N 73.3W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
.120 HOUR FORECAST HURRICANE IRMA NEAR THE COAST OF CUBA NEAR 
22.0N 77.8W. MAXIMUM SUSTAINED WINDS 115 KT GUSTS 140 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 LOW PRES 10N35W 1010 MB.  WITHIN 240 NM S SEMICIRCLE OF LOW 
WINDS 20 KT OR LESS. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES 13N37W 1010 MB. WITHIN 300 NM SE 
SEMICIRCLE OF LOW WINDS 20 KT OR LESS. SEAS TO 9 FT.    
.48 HOUR FORECAST LOW PRES NEAR 12.5N42W 1009 MB. WITHIN 270 NM 
N SEMICIRCLE OF LOW...E WINDS 20 TO 25 KT. SEAS TO 10 FT.
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.