000
FZNT02 KNHC 172055
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SUN SEP 17
24 HOUR FORECAST VALID 1800 UTC MON SEP 18
48 HOUR FORECAST VALID 1800 UTC TUE SEP 19

.WARNINGS...
...HURRICANE WARNING...
.HURRICANE HELENE NEAR 21.2N 49.3W 970 MB AT 2100 UTC SEP 17 
MOVING NW OR 315 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 90 KT 
GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 125 NM NW AND 
SE...150 NM NE AND 90 NM SW QUADRANTS. SEAS 12 FT OR GREATER 
WITHIN 200 NM S SEMICIRCLE...275 NM NE AND 250 NM NW QUADRANTS 
WITH SEAS TO 35 FT.
.24 HOUR FORECAST HURRICANE HELENE NEAR 22.8N 51.5W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM E SEMICIRCLE...100 NM SW AND 125 NM NW QUADRANTS. 
SEAS 12 FT OR GREATER WITHIN 300 NM N SEMICIRCLE...180 NM SE AND 
120 NM SW QUADRANTS WITH SEAS TO 40 FT.
.48 HOUR FORECAST HURRICANE HELENE NEAR 23.5N 55.0W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 175 NM E SEMICIRCLE...100 NM SW AND 150 NM NW QUADRANTS. 
SEAS 12 FT OR GREATER WITHIN 360 NM N AND 180 NM S SEMICIRCLES 
WITH SEAS TO 38 FT.
.72 HOUR FORECAST HURRICANE HELENE NEAR 24.5N 57.5W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE HELENE NEAR 27.1N 59.5W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.
.120 HOUR FORECAST HURRICANE HELENE NEAR 30.5N 61.0W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.

.SYNOPSIS AND FORECAST.
.ATLC EXCEPT AS NOTED IN HELENE WARNINGS...WITHIN 480 NM 
NE...300 NM SE AND NW...AND 180 NM SW QUADRANTS WINDS 20 TO 33 
KT SEAS 8 TO 12 FT.
.24 HOUR FORECAST EXCEPT AS NOTED IN HELENE WARNINGS...WITHIN 
300 NM OF CENTER...EXCEPT 420 NM NE QUADRANT...WINDS 20 TO 33 KT 
SEAS 8 TO 12 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN HELENE WARNINGS...LITTLE 
CHANGE IN WINDS AND SEAS.

.ATLC N OF 30N BETWEEN 49W AND 53W S TO SW WINDS TO 20 KT SEAS 
TO 8 FT.
.06 HOUR FORECAST WINDS LESS THAN 20 KT SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 80W E WINDS 20 KT 
SEAS TO 9 FT IN E SWELL.
.24 HOUR FORECAST FROM 12N TO 15N BETWEEN 70W AND 82W E WINDS TO 
20 KT SEAS TO 8 FT.
.48 HOUR FORECAST FROM 12N TO 14N BETWEEN 70W AND 78W E WINDS TO 
20 KT SEAS TO 8 FT.

.GULF OF MEXICO NEAR TEXAS COAST S WINDS TO 20 KT SEAS LESS THAN 
8 FT.
.24 HOUR FORECAST COLD FRONT ALONG TEXAS COAST. N OF 28N E OF 
FRONT TO 90W SW WINDS TO 20 KT SEAS LESS THAN 8 FT.
.48 HOUR FORECAST COLD FRONT 30N86W 23N98W. N OF 26N W OF FRONT 
NE WINDS 20 KT SEAS LESS THAN 8 FT.

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

$$
FORECASTER BERG
TROPICAL ANALYSIS AND FORECAST BRANCH
TROPICAL PREDICTION CENTER