000
FZNT02 KNHC 040959
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MON SEP 04.
24 HOUR FORECAST VALID 0600 UTC TUE SEP 05.
48 HOUR FORECAST VALID 0600 UTC WED SEP 06.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IRMA NEAR 16.9N 52.3W 961 MB AT 0900 UTC SEP 04 
MOVING WSW OR 255 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 100 KT 
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE 
QUADRANT...80 NM SE QUADRANT...50 NM SW QUADRANT...AND 90 NM NW 
QUADRANT.  SEAS 12 FT OR GREATER WITHIN 270 NM NE QUADRANT...150 
NM SE QUADRANT...180 NM SW QUADRANT...AND 330 NM NW QUADRANT 
WITH SEAS TO 38 FT. ELSEWHERE WITHIN 300 NM N AND 120 NM S 
SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. 
REMAINING WATERS FROM 11N TO 28N BETWEEN 43W AND 58W WINDS 20 
KT OR LESS. SEAS TO 10 FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE IRMA NEAR 16.6N 56.2W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM NE QUADRANT...100 NM SE QUADRANT...70 NM SW 
QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
360 NM N AND 150 NM S SEMICIRCLES WITH SEAS TO 42 FT. ELSEWHERE 
WITHIN 360 NM N AND 180 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 
8 TO 11 FT. REMAINDER AREA FROM 10N TO 28N BETWEEN 48W AND 64W 
WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE IRMA NEAR 17.8N 61.2W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM NW AND SE QUADRANTS...150 NM NE QUADRANT AND 90 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 390 NM N 
SEMICIRCLE...180 NM SE AND 120 NM SW QUADRANTS WITH SEAS TO 45 
FT. ELSEWHERE WITHIN 420 NM N AND 180 NM S SEMICIRCLES WINDS 20 
TO 33 KT. SEAS 8 TO 11 FT. REMAINDER AREA FROM 14N TO 30N 
BETWEEN 51W AND 707W...INCLUDING CARIBBEAN WATERS AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE IRMA NEAR 19.6N 66.8W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE IRMA NEAR 21.0N 72.0W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
.120 HOUR FORECAST HURRICANE IRMA NEAR 22.0N 76.5W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 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 48 HOUR FORECAST LOW PRES NEAR 13N39W 1012 MB. WITHIN 210 
NM NE SEMICIRCLE OF LOW...WINDS 20 TO 25 KT. SEAS TO 8 FT.

.CARIBBEAN 24 HOUR FORECAST N OF 11N E OF 65W...INCLUDING ATLC
PASSAGES...WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NE AND E 
SWELL.
.48 HOUR FORECAST EXCEPT AS NOTED IN IRMA WARNING...N OF 14N E 
OF 69W...INCLUDING ATLC PASSAGES...WINDS 20 KT OR LESS. SEAS TO 
9 FT IN MIXED NE AND E SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.