000
FZNT02 KNHC 182104
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT SEP 18 2010

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT SEP 18.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 19.
48 HOUR FORECAST VALID 1800 UTC MON SEP 20.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IGOR NEAR 27.1N 64.3W 945 MB AT 2100 UTC SEP 18
MOVING NW OR 320 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 85 KT 
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 300 NM NE...225 
NM SE...200 NM SW AND 240 NM NW QUADRANTS. SEAS 12 FT OR GREATER 
WITHIN 600 NM N SEMICIRCLE...540 NM SE AND 480 NM SW QUADRANTS 
WITH SEAS TO 45 FT.
.24 HOUR FORECAST HURRICANE IGOR NEAR 30.5N 65.4W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. HIGHEST 
SEAS 45 FT.
.48 HOUR FORECAST HURRICANE IGOR NEAR 36.1N 62.6W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 300 NM NE...250 NM SE...210 NM SW AND 240 NM NW 
QUADRANTS. SEAS 12 FT OR GREATER FORECAST WATERS N OF 26N 
BETWEEN 53W AND 77W WITH SEAS TO 40 FT NEAR CENTER.
.72 HOUR FORECAST HURRICANE IGOR NEAR 42.5N 52.5W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST TROPICAL EXTRATROPICAL IGOR NEAR 48.0N 
42.0W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST POST TROPICAL EXTRATROPICAL IGOR NEAR 50.0N 
35.0W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM JULIA NEAR 30.6N 51.8W 998 MB AT 2100 UTC SEP 18 
MOVING N NW OR 330 DEG AT 17 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE...120 
NM SE...60 NM SW AND 100 NM NW QUADRANTS. SEAS 12 FT OR GREATER 
WITHIN 420 NM NE AND 300 NM SE QUADRANTS WITH RADIUS 12 FT SEAS 
MERGING 300 NM W SEMICIRCLE MERGING WITH 12 FT SEAS ASSOCIATED 
WITH IGOR. HIGHEST SEAS 27 FT.
.24 HOUR FORECAST TROPICAL STORM JULIA NEAR 34.8N 51.2W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE...90 NM SE...40 NM SW AND 70 NM NW QUADRANTS. 
SEAS 12 FT OR GREATER WITHIN 360 NM E SEMICIRCLE AND MERGING 
WITH SEAS ASSOCIATED WITH IGOR W SEMICIRCLE. HIGHEST SEAS 20 FT. 
.48 HOUR FORECAST POST TROPICAL REMNANT LOW JULIA NEAR 38.0N 
47.4W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS 12 FT OR 
GREATER WITHIN 360 NM E SEMICIRCLE AND MERGING WITH SEAS 
ASSOCIATED WITH IGOR W SEMICIRCLE. HIGHEST SEAS 16 FT.
.72 HOUR FORECAST POST TROPICAL REMNANT LOW JULIA NEAR 42.0N 
43.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 25 KT.

.SYNOPSIS AND FORECAST.

.ATLC EXCEPT AS NOTED IN IGOR WARNING...OVER FORECAST WATERS N 
OF 20N BETWEEN 53W AND 77W E OF BAHAMAS WINDS 20 TO 33 KT. SEAS 
10 TO 15 FT. FROM 17N TO 20N BETWEEN 53W AND 61W S TO SW WINDS 
15 TO 20 KT. SEAS 8 TO 12 FT. W OF 77W NE WINDS 20 KT. NE OF 
BAHAMAS SEAS 8 TO 12 FT PRIMARILY IN NE SWELL.
.24 HOUR FORECAST EXCEPT AS NOTED IN IGOR WARNING...OVER 
FORECAST WATERS N OF 20N W OF 55W E OF BAHAMAS WINDS 20 TO 33 
KT. SEAS 10 TO 17 FT. ELSEWHERE NW OF LINE 31N41W TO 17N62W S 
WINDS 20 KT. SEAS 8 TO 12 FT IN MIXED SWELL.
.48 HOUR FORECAST N OF 26N BETWEEN 53W AND 68W SW TO W WINDS 20 
TO 30 KT. SEAS 10 TO 20 FT IN MIXED SWELL. ELSEWHERE W OF 65W 
WINDS LESS THAN 20 KT. NE OF BAHAMAS SEAS 8 TO 12 FT PRIMARILY 
IN N SWELL. REMAINDER AREA BETWEEN 65W AND LINE 31N43W TO 20N65W 
WINDS LESS THAN 20 KT. SEAS 8 TO 11 FT IN MIXED SWELL.

.ATLC EXCEPT AS NOTED IN JULIA WARNING...OVER FORECAST WATERS N 
OF 24N BETWEEN 43W AND 53W WINDS 20 TO 33 KT. SEAS 8 TO 15 FT. 
FROM 16N TO 27N E OF 43W NE TO E WINDS 20 KT. SEAS TO 9 FT IN NE 
SWELL. ELSEWHERE N OF 13N E OF 55W WINDS LESS THAN 20 KT. SEAS 
TO 11 FT IN MIXED SWELL.  
.24 HOUR FORECAST FROM 15N TO 22N E OF 40W NE TO E WINDS 20 KT. 
SEAS TO 9 FT IN NE SWELL. ELSEWHERE FROM 13N TO 27N E OF 48W 
WINDS LESS THAN 20 KT. SEAS 8 FT PRIMARILY IN NE SWELL.  
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...E OF 
AREA NEAR 15N32W 1007 MB. FROM 15N TO 20N E OF 38W NE WINDS 20 
KT. SEAS 8 TO 10 FT IN E SWELL. ELSEWHERE FROM 12N TO 20N E OF 
55W WINDS LESS THAN 20 KT. SEAS TO 8 FT PRIMARILY IN E SWELL. 

.GULF OF MEXICO N OF 22N W OF 87W E TO SE WINDS 20 KT. SEAS TO
8 FT.
.24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.
 
.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

$$
.FORECASTER NELSON. TROPICAL PREDICTION CENTER.