...FIONA REMAINS DISORGANIZED DUE TO WIND SHEAR AND DRY AIR... ...SLOW MOVING FIONA TO BRING LIFE THREATENING FLASH FLOODS TO PUERTO RICO DURING THE NEXT FEW DAYS...

FIONA STILL DEALING WITH DRY AIR AND UPPER LEVEL WIND SHEAR.  STRENGTHENING SHOULD BE SLOW TO OCCUR.  FIONA ON TRACK AND IS FORECAST TO BRING HEAVY RAINFALL OVER PUERTO RICO THAT COULD PRODUCING LIFE THREATENING FLASH FLOODS AND MUDSLIDES.

COMPUTER MODELS CONTINUE IN AGREEMENT THAT FIONA WILL BE PULLED NORTH AND NORTHEAST IN RESPONSE TO A STRONG UPPER LEVEL TROUGH THAT WILL PRODUCE A DIP IN THE JET STREAM AND PULL FIONA NORTHWARD.

RTW

NATIONAL HURRICANE CENTER

...LIFE-THREATENING FLOODING AND MUDSLIDES POSSIBLE ACROSS PUERTO RICO FROM FIONA DURING THE NEXT SEVERAL DAYS...

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5:00 PM AST Sat Sep 17
Location: 16.7°N 64.6°W
Moving: WNW at 9 mph
Min pressure: 1002 mb
Max sustained: 60 mph

 

 SEA SURFACE TEMPERATURES

UPPER LEVEL SHEAR