000
FZNT02 KNHC 170421
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SUN SEP 17 2006
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

PAN PAN 

ATLANTIC FROM 7N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO

SYNOPSIS VALID 0000 UTC SUN SEP 17
24 HOUR FORECAST VALID 0000 UTC MON SEP 18
48 HOUR FORECAST VALID 0000 UTC TUE SEP 19

.WARNINGS...
...HURRICANE WARNING...
.HURRICANE HELENE NEAR 19.5N 47.5W 984 MB AT 0300 UTC SEP 17
MOVING WNW OR 300 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM E 
SEMICIRCLE...100 NM SW QUADRANT AND 125 NM NW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 180 NM S SEMICIRCLE...200 NM NE QUADRANT 
AND 225 NM NW QUADRANT WITH SEAS TO 26 FT.
.24 HOUR FORECAST HURRICANE HELENE NEAR 21.2N 49.7W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM E SEMICIRCLE...100 NM SW QUADRANT AND 135 NM NW 
QUADRANT. LITTLE CHANGE IN RADIUS OF SEAS 12 FT OR GREATER 
WITH SEAS TO 32 FT.
.48 HOUR FORECAST HURRICANE HELENE NEAR 22.9N 52.3W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 180 NM E SEMICIRCLE...100 NM SW QUADRANT AND 150 NM NW 
QUADRANT. SEAS 12 FT OR GREATER  WITHIN 360 NM N AND 180 NM S 
SEMICIRCLES WITH HIGHEST SEAS 34 FT.
.72 HOUR FORECAST HURRICANE HELENE NEAR 24.1N 55.0W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE HELENE NEAR 26.0N 57.0W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.
.120 HOUR FORECAST HURRICANE HELENE NEAR 29.0N 58.5W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.

...TROPICAL STORM WARNING...
.HURRICANE GORDON NEAR 32.0N 53.9W 987 MB AT 0300 UTC SEP 17
MOVING N OR 360 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS
80 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E
SEMICIRCLE...70 NM SW QUADRANT AND 90 NM NW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 180 NM E SEMICIRCLE AND 120 NM W SEMICIRCLE
WITH SEAS TO 15 FT.
.12 HOUR FORECAST HURRICANE GORDON N OF AREA NEAR 32.6N 53.6W. 
TROPICAL STORM FORCE WINDS N OF AREA.

.SYNOPSIS AND FORECAST.
.ATLC EXCEPT AS NOTED IN HELENE WARNINGS...WITHIN 540 NM 
NE...360 NM SE AND NW...AND 240 NM SW QUADRANTS WINDS 20 TO 33 
KT SEAS 8 TO 12 FT.
.24 HOUR FORECAST EXCEPT AS NOTED IN HELENE WARNINGS...WITHIN 
480 NM NE...300 NM SE AND NW...AND 240 NM SW QUADRANTS WINDS 20 
TO 33 KT SEAS 8 TO 12 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN HELENE WARNINGS...WITHIN 
300 NM OF CENTER...EXCEPT 480 NM NE QUADRANT...WINDS 20 TO 33 KT 
SEAS 8 TO 12 FT.

.ATLC EXCEPT AS NOTED IN GORDON WARNINGS...OVER FORECAST WATERS 
WITHIN 240 NM S SEMICIRCLE WINDS 20 TO 33 KT SEAS 8 TO 12 FT.
.12 HOUR FORECAST N OF 29N BETWEEN 48W AND 55W S TO SW WINDS 20 
TO 30 KT SEAS 8 TO 12 FT.
.24 HOUR FORECAST N OF 30N BETWEEN 48W AND 53W S TO SW WINDS TO 
20 KT SEAS TO 9 FT IN S SWELL.
.30 HOUR FORECAST WINDS LESS THAN 20 KT SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 17N BETWEEN 68W AND 79W E WINDS 20 TO 25 
KT SEAS TO 10 FT.
.24 HOUR FORECAST FROM 12N TO 16N BETWEEN 70W AND 82W E WINDS 20 
KT SEAS 8 TO 10 FT.
.48 HOUR FORECAST FROM 12N TO 15N BETWEEN 70W AND 75W E WINDS TO 
20 KT SEAS TO 8 FT. S OF 18N W OF 84W E TO SE WINDS 20 KT SEAS 
LESS THAN 8 FT.

.GULF OF MEXICO 12 HOUR FORECAST N OF 23N W OF 94W SE TO S WINDS 
TO 20 KT SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 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 DGS
TROPICAL ANALYSIS AND FORECAST BRANCH
TROPICAL PREDICTION CENTER