000
FZNT02 KNHC 210241
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU SEP 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 21
24 HOUR FORECAST VALID 0000 UTC FRI SEP 22
48 HOUR FORECAST VALID 0000 UTC SAT SEP 23

.WARNINGS...
...HURRICANE WARNING...
.HURRICANE HELENE NEAR 27.1N 57.0W 961 MB AT 0300 UTC SEP 21
MOVING N OR 360 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 
105 KT. TROPICAL STORM FORCE WINDS WITHIN 175 NM E AND 150 NM W 
SEMICIRCLES. SEAS 12 FT OR GREATER WITHIN 375 NM NE QUADRANT... 
300 NM SE QUADRANT...225 NM SW QUADRANT...AND 350 NM NW QUADRANT 
WITH SEAS TO 35 FT.
.24 HOUR FORECAST HURRICANE HELENE NEAR 31.2N 56.3W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 175 NM OF CENTER EXCEPT 200 NM NE 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 NEAR 37.2N 51.2W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 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 35 FT.
.72 HOUR FORECAST HURRICANE HELENE BECOMING EXTRATROPICAL NEAR 
43.0N 42.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. EXTENDED 
OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST EXTRATROPICAL LOW HELENE NEAR 48.0N 32.0W.
MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST EXTRATROPICAL LOW HELENE NEAR 52.0N 24.0W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. 

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

.ATLC COLD FRONT 31N73W 26N81W. N OF 27N WITHIN 300 NM E OF FRONT
SW WINDS TO 20 KT SEAS LESS THAN 8 FT.  
.24 HOUR FORECAST COLD FRONT 31N64W 25N75W STATIONARY TO 25N81W. 
N OF 27N WITHIN 300 NM W OF FRONT N TO NE WINDS 20 TO 25 KT SEAS 
8 TO 12 FT. EXCEPT AS NOTED IN HELENE WARNINGS...N OF 27N WITHIN 
240 NM E OF FRONT W WINDS 20 TO 25 KT SEAS 8 TO 12 FT.
48 HOUR FORECAST COLD FRONT 31N55W 25N62W STATIONARY TO 22N74W. 
N OF 27N WITHIN 240 NM W OF FRONT N TO NE WINDS TO 20 KT SEAS 8 
TO 10 FT. N OF 27N E OF FRONT SW WINDS TO 20 KT SEAS 8 TO 12 FT.

.ATLC FROM 15N TO 22N E OF 37W NE WINDS TO 20 KT SEAS TO 8 FT.
.24 HOUR FORECAST TROPICAL WAVE S OF 22N ALONG 36W WITH LOW PRES 
14N36W 1012 MB. N OF 14N WITHIN 180 NM W OF WAVE NE WINDS TO 20 
KT SEAS TO 9 FT. N OF 12N WITHIN 240 NM E OF WAVE E TO SE WINDS 
20 TO 25 KT SEAS 8 TO 11 FT AND SCATTERED TSTMS.
.48 HOUR FORECAST TROPICAL WAVE S OF 22N ALONG 42W WITH LOW PRES 
15N42W 1010 MB. N OF 15N WITHIN 180 NM W OF WAVE NE WINDS TO 20 
KT SEAS 8 TO 11 FT WITH E SWELL. N OF 13N WITHIN 360 NM E OF 
WAVE E TO SE WINDS 20 TO 25 KT SEAS 8 TO 12 FT AND SCATTERED 
TSTMS.

.CARIBBEAN FROM 12N TO 15N BETWEEN 79W AND 68W NE WINDS TO 20 KT 
SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO 12 HOUR FORECAST N OF 25N W OF 94W S WINDS TO 20 
KT SEAS LESS THAN 8 FT.
.24 HOUR FORECAST N OF 25N W OF 92W S WINDS TO 20 KT SEAS LESS 
THAN 8 FT.
.36 HOUR FORECAST N OF 22N W OF 88W SE TO S WINDS TO 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 NELSON
TROPICAL ANALYSIS AND FORECAST BRANCH
TROPICAL PREDICTION CENTER