723 
 WTNT24 KNHC 230244
 TCMAT4
 TROPICAL STORM IVAN FORECAST/ADVISORY NUMBER  68
 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL092004
 0300Z THU SEP 23 2004
  
 A TROPICAL STORM WARNING REMAINS IN EFFECT FOR A PORTION OF THE GULF
 OF MEXICO COAST FROM THE MOUTH OF THE MISSISSIPPI RIVER LOUISIANA
 WESTWARD TO SARGENT TEXAS.
  
 TROPICAL STORM CENTER LOCATED NEAR 27.4N  90.0W AT 23/0300Z
 POSITION ACCURATE WITHIN  20 NM
  
 PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT  11 KT
  
 ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB
 MAX SUSTAINED WINDS  35 KT WITH GUSTS TO  45 KT.
 34 KT....... 75NE  30SE   0SW   0NW.
 12 FT SEAS.. 90NE  90SE   0SW  90NW.
 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 27.4N  90.0W AT 23/0300Z
 AT 23/0000Z CENTER WAS LOCATED NEAR 27.1N  89.5W
  
 FORECAST VALID 23/1200Z 28.4N  91.5W
 MAX WIND  45 KT...GUSTS  55 KT.
 34 KT... 75NE  25SE   0SW  25NW.
  
 FORECAST VALID 24/0000Z 29.5N  94.0W
 MAX WIND  45 KT...GUSTS  55 KT.
 34 KT... 75NE  75SE  25SW  25NW.
  
 FORECAST VALID 24/1200Z 31.5N  95.5W...INLAND
 MAX WIND  30 KT...GUSTS  40 KT.
  
 FORECAST VALID 25/0000Z 32.0N  96.0W...REMNANT LOW
 MAX WIND  25 KT...GUSTS  35 KT.
  
 FORECAST VALID 26/0000Z 32.0N  96.0W...DISSIPATING
 MAX WIND  20 KT...GUSTS  25 KT.
  
 EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
 ON DAY 4 AND 325 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
  
 REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 27.4N  90.0W
  
 NEXT ADVISORY AT 23/0900Z
  
 FORECASTER AVILA
  
  
 $$