000
FZNT02 KNHC 200423
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED SEP 20
24 HOUR FORECAST VALID 0000 UTC THU SEP 21
48 HOUR FORECAST VALID 0000 UTC FRI SEP 22

.WARNINGS...
...HURRICANE WARNING...
.HURRICANE HELENE AT 24.6N 54.8W 958 MB AT 0300 UTC SEP 20 MOVE 
W OR 275 DEG AT 8 KT.  MAXIMUM SUSTAINED WIND 95 GUSTS 115 KT. 
TROPICAL STORM FORCE WINDS WITHIN 175 NM OF CENTER EXCEPT 150 NM 
SW QUADRANT.  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 29 FT.
.24 HOUR FORECAST  HURRICANE HELENE NEAR 27.5N 56.8W.  MAXIMUM 
SUSTAINED WIND 100 GUSTS 120 KT.  TROPICAL STORM FORCE WINDS 
WITHIN 200 NM E SEMICIRCLE...140 NM SW QUADRANT AND 175 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM E AND 150 W OF 
CENTER WITH SEAS TO 36 FT.
.48 HOUR FORECAST  HURRICANE HELENE NEAR 32.7N 56.0W.  MAXIMUM 
SUSTAINED WIND 95 GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 200 NM NE QUADRANT...225 NM SE QUADRANT...125 NM SW 
QUADRANT...AND 175 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
300 NM E AND 120 NM W OF CENTER WITH SEAS TO 30 FT.
.72 HOUR FORECAST  HURRICANE HELENE NEAR 39.0N 50.0W.
MAXIMUM SUSTAINED WIND 85 GUSTS 105 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST  EXTRATROPICAL LOW HELENE NEAR 45.0N 40.0W. 
MAXIMUM SUSTAINED WIND 75 GUSTS 90 KT.
.120 HOUR FORECAST  EXTRATROPICAL LOW HELENE NEAR 49.0N 30.0W. 
MAXIMUM SUSTAINED WIND 60 GUSTS 75 KT.

.SYNOPSIS AND FORECAST.
.ATLC...EXCEPT AS NOTED IN WARNINGS...WITHIN 360 NM N SEMICIRCLE 
AND 300 NM S SEMICIRCLE  WIND TO 33 KT  SEAS TO 12 FT.
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...WITHIN 420 NM 
E SEMICIRCLE AND 300 NM W SEMICIRCLE WIND TO 33 KT SEAS TO 12 FT.
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...OVER FORECAST 
WATERS WITHIN 480 NM SE QUADRANT AND 420 NM SW QUADRANT  WIND TO 
33 KT  SEAS TO 12 FT.

.ATLC 06 HOUR FORECAST  COLD FRONT OFF GEORGIA COAST.  N OF 28N 
WITHIN 360 NM E OF FRONT  SW WIND 20 KT  SEAS LESS THAN 8 FT.  
WINDS AND SEAS HIGHER IN SCATTERED TSTMS ALONG AND WITHIN 200 NM 
E OF FRONT.
.24 HOUR FORECAST  COLD FRONT 31N72W 26N80W.  N OF 26N WITHIN 
240 NM E OF FRONT  WIND LESS THAN 20 KT  SEAS TO 12 FT IN E 
SWELL.
W OF FRONT NW WIND LESS THAN 20 KT  SEAS TO 8 FT IN E SWELL.
.48 HOUR FORECAST  COLD FRONT 31N62W 25N75W.  N OF 26N WITHIN 
180 NM E OF FRONT  WIND LESS THAN 20 KT  SEAS TO 9 FT IN MERGING 
E AND SW SWELL.

.ATLC 42 HOUR FORECAST  TROPICAL WAVE ALONG 35W.  FROM 14N TO 
20N E OF 38W  NE TO E WIND TO 20 KT  SEAS TO 8 FT.  
.48 HOUR FORECAST  LITTLE CHANGE.

.CARIBBEAN S OF 14N FROM 70W TO 75W  E WIND TO 20 KT
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST  LITTLE CHANGE.
.48 HOUR FORECAST  S OF 15N FROM 68W TO 75W
E WIND 20 KT  SEAS TO 8 FT. 

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

$$
FORECASTER WALLY BARNES
TROPICAL ANALYSIS AND FORECAST BRANCH
TROPICAL PREDICTION CENTER