000
FZNT02 KNHC 202141
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED SEP 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED SEP 20
24 HOUR FORECAST VALID 1800 UTC THU SEP 21
48 HOUR FORECAST VALID 1800 UTC FRI SEP 22

.WARNINGS...
...HURRICANE WARNING...
.HURRICANE HELENE NEAR 26.6N 57.1W 960 MB AT 2100 UTC MOVING NW 
OR 315 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. 
TROPICAL STORM FORCE WINDS WITHIN 150 NM OF CENTER. SEAS 12 FT 
OR GREATER WITHIN 375 NM NE QUADRANT...300 NM SE QUADRANT...225 
NM SW QUADRANT...AND 350 NM NW QUADRANT WITH HIGHEST SEAS 35 FT.
.24 HOUR FORECAST HURRICANE HELENE NEAR 30.6N 57.2W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 175 NM W SEMICIRCLE...200 NM NE QUADRANT AND 150 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM N SEMICIRCLE...360 
NM SE AND 240 NM SW QUADRANTS WITH SEAS TO 40 FT.
.48 HOUR FORECAST HURRICANE HELENE BECOMING EXTRATROPICAL NEAR
37.5N 52.3W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. 
TROPICAL STORM FORCE WINDS WITHIN 240 NM OF CENTER EXCEPT 200 NM 
NE QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM W SEMICIRCLE 
AND 300 NM E SEMICIRCLE WITH SEAS TO 40 FT.
.72 HOUR FORECAST EXTRATROPICAL LOW HELENE NEAR 43.5N 43.0W.
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST EXTRATROPICAL LOW HELENE NEAR 48.5N 35.0W.
MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST EXTRATROPICAL LOW HELENE NEAR 52.0N 28.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

.SYNOPSIS AND FORECAST.
.ATLC...EXCEPT AS NOTED IN WARNINGS. WITHIN 480 NM N SEMICIRCLE 
AND 420 NM S SEMICIRCLE WINDS 20 TO 33 KT SEAS 8 TO 12 FT.
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS. WITHIN 480 NM N 
SEMICIRCLE AND 420 NM S SEMICIRCLE WINDS 20 TO 33 KT SEAS 8 TO 
12 FT.
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS. OVER FORECAST 
WATERS WITHIN 540 NM NW SEMICIRCLE AND 600 NM SE SEMICIRCLE 
WINDS 20 TO 33 KT SEAS 8 TO 12 FT.

.ATLC COLD FRONT 31N74W 29N80W. N OF 27N WITHIN 300 NM E OF FRONT
SW WINDS TO 20 KT SEAS LESS THAN 8 FT.  
.24 HOUR FORECAST COLD FRONT 31N67W 25N80W. WINDS LESS THAN 20 
KT. SEAS...SEE HELENE WARNING.

.ATLC 12 HOUR FORECAST TROPICAL WAVE ALONG 32W. FROM 15N TO 18N 
E OF 37W NE TO E WINDS TO 20 KT SEAS TO 8 FT.  
.24 HOUR FORECAST TROPICAL WAVE ALONG 35W. FROM 15N TO 21N E OF 
40W NE WINDS TO 20 KT SEAS TO 8 FT.
.48 HOUR FORECAST TROPICAL WAVE ALONG 41W. FROM 15N TO 21N E OF 
45W NE TO E WINDS 20 TO 25 KT SEAS 8 TO 10 FT IN E SWELL.

.CARIBBEAN S OF 14N FROM 69W TO 75W E WINDS TO 20 KT SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO 24 HOUR FORECAST N OF 25N W OF 92W S WINDS TO 20 
KT SEAS LESS THAN 8 FT.
.48 HOUR FORECAST N OF 22N W OF 90W SE TO S WINDS 20 KT SEAS 
LESS THAN 8 FT.

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

$$
FORECASTER JC/EC
TROPICAL ANALYSIS AND FORECAST BRANCH
TROPICAL PREDICTION CENTER