000
FZNT02 KNHC 012052
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2230 UTC FRI SEP 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI SEP 01.
24 HOUR FORECAST VALID 1800 UTC SAT SEP 02.
48 HOUR FORECAST VALID 1800 UTC SUN SEP 03.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IRMA NEAR 18.8N 39.1W 964 MB AT 2100 UTC SEP 01 
MOVING W OR 275 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 105 KT 
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE 
QUADRANT...60 NM SE QUADRANT...40 NM SW QUADRANT...AND 70 NM NW 
QUADRANT.  SEAS 12 FT OR GREATER WITHIN 240 NM NE QUADRANT...60 
NM SE QUADRANT...150 NM SW QUADRANT...AND 210 NM NW QUADRANT 
WITH SEAS TO 30 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 270 NM 
N AND 90 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. 
REMAINDER OF AREA FROM 13N TO 25N E OF 42W WINDS 20 KT OR LESS. 
SEAS TO 10 FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE IRMA NEAR 18.5N 43.4W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
300 NM N AND 120 NM S SEMICIRCLES WITH SEAS TO 36 FT. ELSEWHERE 
OVER FORECAST WATERS WITHIN 360 NM N AND 150 NM S SEMICIRCLES 
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER AREA FROM 14N TO 
25N E OF 50W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE IRMA NEAR 17.2N 47.9W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...70 NM SW 
QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
330 NM N AND 120 NM S SEMICIRCLES WITH SEAS TO 41 FT. ELSEWHERE 
WITHIN 300 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 
8 TO 11 FT. REMAINDER OF AREA FROM 12N TO 26N BETWEEN 39W AND 
55W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE IRMA NEAR 16.4N 52.2W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE IRMA NEAR 17.0N 56.5W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE IRMA NEAR 19.0N 61.0W. 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 N OF 27N BETWEEN 47W AND 64W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN N TO NE SWELL.
.24 HOUR FORECAST N OF 25N E OF 51W WINDS 20 KT OR LESS. SEAS 8 
TO 11 FT IN MIXED SWELL.

.CARIBBEAN 06 HOUR FORECAST S OF 13N BETWEEN 72W AND 75W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 75W AND 79W WINDS 20 
KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL. 
.30 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 AL. NATIONAL HURRICANE CENTER.