000
FZNT02 KNHC 051004
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC TUE SEP 05 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE SEP 05.
24 HOUR FORECAST VALID 0600 UTC WED SEP 06.
48 HOUR FORECAST VALID 0600 UTC THU SEP 07.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IRMA NEAR 16.6N 57.0W 937 MB AT 0900 UTC SEP 05 
MOVING W OR 270 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 130 KT 
GUSTS 160 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM N 
SEMICIRCLE...100 NM SE QUADRANT AND 80 NM SW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 270 NM NE QUADRANT...120 NM SE 
QUADRANT...180 NM SW QUADRANT...AND 300 NM NW QUADRANT WITH SEAS 
TO 47 FT. ELSEWHERE WITHIN 360 NM N AND 180 NM S SEMICIRCLES OF 
CENTER WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINING ATLC WATERS 
FROM 12N TO 27N BETWEEN 48W AND 64W WINDS 20 KT OR LESS. SEAS 8 
TO 11 FT IN MIXED SWELL. NUMEROUS TSTMS IN SOLID BANDS WITHIN 
120 NM OF CENTER.
.24 HOUR FORECAST HURRICANE IRMA NEAR 17.7N 61.5W. MAXIMUM 
SUSTAINED WINDS 130 KT GUSTS 160 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM NE QUADRANT...110 NM SE QUADRANT...80 NM SW 
QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER OVER 
ATLC WATERS WITHIN 390 NM N AND 150 NM S SEMICIRCLES WITH SEAS 
TO 48 FT. ELSEWHERE WITHIN 400 NM N AND 180 NM S SEMICIRCLES 
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINING ATLC AND CARIBBEAN 
WATERS FROM 14N TO 30N BETWEEN 52W AND 70W WINDS 20 KT OR LESS. 
SEAS TO 8 TO 10 FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE IRMA NEAR 19.6N 67.0W. MAXIMUM 
SUSTAINED WINDS 125 KT GUSTS 150 KT. TROPICAL STORM FORCE WINDS 
WITHIN 160 NM NE QUADRANT...140 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER OVER 
ATLC WATERS WITHIN 420 NM N AND 210 NM S SEMICIRCLES WITH SEAS 
TO 52 FT. ELSEWHERE WITHIN 400 NM NE AND 150 NM SW SEMICIRCLES 
WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINING ATLC AND CARIBBEAN 
WATERS FROM 17N TO 31N BETWEEN 58W AND 74W WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE IRMA NEAR 21.2N 72.5W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE IRMA NEAR 22.4N 77.2W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
.120 HOUR FORECAST HURRICANE IRMA NEAR 24.0N 81.0W. 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 LOW PRES NEAR 11.5N37W 1010 MB.  OVER FORECAST WATERS 
WITHIN 180 NM E SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N40.5W 1008 MB. WITHIN 150 NM NE SEMICIRCLE OF LOW WINDS 20 TO 
25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 10N TO 15N E OF 43W WINDS 
20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.  
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N46W 1006 MB. WITHIN 240 NM N AND 60 NM S SEMICIRCLES WINDS 20 
TO 30 KT. SEAS 8 TO 12 FT.

.GULF OF MEXICO LOW PRES NEAR 22N97W 1011 MB STATIONARY. WITHIN 
120 NM NE SEMICIRCLE OF LOW WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
22N96.5W 1009 MB. OVER FORECAST WATERS WITHIN 90 NM OF CENTER 
EXCEPT 0 NM SE QUADRANT WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
21.5N95W 1008 MB. OVER FORECAST WATERS WITHIN 120 NM SW 
SEMICIRCLE OF LOW WINDS 20 TO 25 KT. SEAS TO 9 FT.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.