000
FZNT02 KNHC 191609
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SUN SEP 19.
24 HOUR FORECAST VALID 1200 UTC MON SEP 20.
48 HOUR FORECAST VALID 1200 UTC TUE SEP 21.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IGOR NEAR 30.4N 65.4W 949 MB AT 1500 UTC SEP 19
MOVING N OR 360 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 75 KT
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 300 NM N
SEMICIRCLE...250 NM SE QUADRANT AND 200 NM SW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 570 NM NW AND SE QUADRANTS...600 NM NE
QUADRANT AND 540 NM SW QUADRANT WITH SEAS TO 44 FT.
.24 HOUR FORECAST HURRICANE IGOR NEAR 35.4N 63.9W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. 
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IGOR NEAR 43.5N
55.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM
FORCE WINDS WITHIN 350 NM N SEMICIRCLE...300 NM SE QUADRANT AND 
275 NM SW QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS N 
OF LINE FROM 31N55W TO 27N66W TO 27N73W WITH SEAS TO 15 FT ALONG 
31N.
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IGOR NEAR 50.5N
45.5W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IGOR NEAR 54.5N
40.5W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IGOR NEAR 59.0N 
39.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

.SYNOPSIS AND FORECAST.

.ATLC EXCEPT AS NOTED IN IGOR WARNING...OVER FORECAST WATERS N 
OF 22N BETWEEN 55W AND 70W AND N OF 24N W OF 70W AND N OF 
BAHAMAS WINDS 20 TO 33 KT. SEAS 10 TO 16 FT. ELSEWHERE N OF 20N 
BETWEEN 55W AND 70W WINDS LESS THAN 20 KT. SEAS 8 TO 12 FT IN 
MIXED SWELL. 
.24 HOUR FORECAST EXCEPT AS NOTED IN IGOR WARNING...OVER 
FORECAST WATERS N OF 25N BETWEEN 55W AND 65W WINDS 20 TO 33 KT. 
SEAS 14 TO 24 FT. N OF 28N BETWEEN 65W AND 75W WINDS 20 TO 25 
KT. SEAS 10 TO 18 FT IN MIXED SWELL. REMAINDER OF AREA NW OF 
LINE FROM 31N44W TO 19N62W...EXCEPT SW OF BAHAMA CHAIN...WINDS 
LESS THAN 20 KT. SEAS 8 TO 14 FT IN MIXED SWELL.
.48 HOUR FORECAST EXCEPT AS NOTED IN IGOR WARNING...OVER 
FORECAST WATERS NW OF LINE FROM 31N42W TO 20N70W...EXCEPT SW OF 
BAHAMA CHAIN...WINDS LESS THAN 20 KT. SEAS 8 TO 11 FT IN MIXED 
SWELL...HIGHEST CENTRAL PORTION.

.ATLC TROPICAL STORM JULIA N OF AREA...OVER FORECAST WATERS N OF 
28N BETWEEN 47W AND 55W S TO SW WINDS 20 TO 30 KT. SEAS TO 14 
FT. ELSEWHERE N OF 24N BETWEEN 42W AND 55W WINDS LESS THAN 20 
KT. SEAS 8 TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST CONDITIONS AS DESCRIBED IN IGOR PARAGRAPH 
ABOVE.

.ATLC LOW PRES E OF AREA NEAR 15N31W 1008 MB. OVER FORECAST 
WATERS FROM 15N TO 23N E OF 45W NE TO E WINDS 20 KT. SEAS 8 TO 
10 FT IN NE SWELL. ELSEWHERE FROM 13N TO 24N E OF 45W AND FROM 
17N TO 24N BETWEEN 45W AND 50W WINDS LESS THAN 20 KT. SEAS 8 TO 
9 FT PRIMARILY IN NE SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...E OF 
AREA NEAR 16N33W 1008 MB. OVER FORECAST WATERS FROM 15N TO 20N E 
OF 40W NE WINDS 20 KT. SEAS TO 9 FT. ELSEWHERE FROM 12N TO 23N 
E OF 47W WINDS LESS THAN 20 KT. SEAS 8 TO 9 FT PRIMARILY IN NE 
SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...E OF 
AREA NEAR 17N34W 1008 MB. OVER FORECAST WATERS FROM 17N TO 22N E 
OF 38W N TO NE WINDS 20 KT. SEAS 8 TO 9 FT.

.ATLC TROUGH FROM 12N48W TO 07N53W. FROM 12N TO 17N BETWEEN 45W 
AND 52W NE TO E WINDS 20 KT. SEAS 8 FT.
.ATLC TROUGH FROM 12N53W TO 07N57W. FROM 12N TO 16N BETWEEN 50W 
AND 56W NE TO E WINDS TO 20 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST TROUGH FROM 14N59W TO 07N60W. FROM 13N TO 
17N BETWEEN 56W TO 61W E WINDS 20 KT. SEAS LESS THAN 8 FT. 

.GULF OF MEXICO N OF 25N W OF 90W E WINDS 20 KT. SEAS TO 8 FT. S 
FROM 22N TO 27N E OF 90W INCLUDING STRAITS OF FLORIDA...NE TO E 
WINDS TO 20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO 42 HOUR FORECAST S OF 26N E OF 88W NE TO E WINDS 
20 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.
 
.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

$$
.FORECASTER AL. TROPICAL PREDICTION CENTER.