784 
 WTNT23 KNHC 182035
 TCMAT3
 HURRICANE HELENE FORECAST/ADVISORY NUMBER  26
 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL082006
 2100 UTC MON SEP 18 2006
  
 HURRICANE CENTER LOCATED NEAR 23.9N  51.1W AT 18/2100Z
 POSITION ACCURATE WITHIN  20 NM
  
 PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT   8 KT
  
 ESTIMATED MINIMUM CENTRAL PRESSURE  960 MB
 EYE DIAMETER  20 NM
 MAX SUSTAINED WINDS 100 KT WITH GUSTS TO 120 KT.
 64 KT....... 60NE  30SE  20SW  30NW.
 50 KT.......100NE  65SE  30SW  80NW.
 34 KT.......175NE 150SE 100SW 125NW.
 12 FT SEAS..330NE 330SE 240SW 330NW.
 WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
 MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
  
 REPEAT...CENTER LOCATED NEAR 23.9N  51.1W AT 18/2100Z
 AT 18/1800Z CENTER WAS LOCATED NEAR 23.7N  50.7W
  
 FORECAST VALID 19/0600Z 24.6N  52.2W
 MAX WIND 100 KT...GUSTS 120 KT.
 64 KT... 60NE  30SE  20SW  30NW.
 50 KT...100NE  65SE  30SW  80NW.
 34 KT...175NE 150SE 100SW 125NW.
  
 FORECAST VALID 19/1800Z 24.7N  54.0W
 MAX WIND 105 KT...GUSTS 130 KT.
 64 KT... 60NE  30SE  20SW  30NW.
 50 KT...100NE  65SE  30SW  80NW.
 34 KT...175NE 150SE 100SW 125NW.
  
 FORECAST VALID 20/0600Z 24.8N  56.5W
 MAX WIND 105 KT...GUSTS 130 KT.
 64 KT... 45NE  40SE  30SW  35NW.
 50 KT...100NE  75SE  60SW  75NW.
 34 KT...200NE 175SE 125SW 150NW.
  
 FORECAST VALID 20/1800Z 26.0N  57.0W
 MAX WIND 105 KT...GUSTS 130 KT.
 50 KT...100NE  75SE  60SW  75NW.
 34 KT...200NE 175SE 125SW 150NW.
  
 FORECAST VALID 21/1800Z 29.5N  58.5W
 MAX WIND 100 KT...GUSTS 120 KT.
 50 KT...100NE  75SE  60SW  75NW.
 34 KT...200NE 175SE 125SW 150NW.
  
 EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 225 NM
 ON DAY 4 AND 300 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
  
 OUTLOOK VALID 22/1800Z 33.0N  57.5W
 MAX WIND  90 KT...GUSTS 110 KT.
  
 OUTLOOK VALID 23/1800Z 40.0N  50.0W
 MAX WIND  80 KT...GUSTS 100 KT.
  
 REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.9N  51.1W
  
 NEXT ADVISORY AT 19/0300Z
  
 $$
 FORECASTER AVILA