000
WTNT80 EGRR 031800

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 12UTC 03.09.2011

             HURRICANE KATIA      ANALYSED POSITION : 19.3N  55.4W

     ATCF IDENTIFIER : AL122011

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 03.09.2011  19.3N  55.4W    STRONG
 00UTC 04.09.2011  20.2N  56.7W    STRONG       LITTLE CHANGE
 12UTC 04.09.2011  21.3N  58.3W    STRONG       LITTLE CHANGE
 00UTC 05.09.2011  22.2N  60.0W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 05.09.2011  22.7N  61.7W    STRONG    WEAKENING SLIGHTLY
 00UTC 06.09.2011  23.5N  63.4W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 06.09.2011  24.3N  65.2W    STRONG    WEAKENING SLIGHTLY
 00UTC 07.09.2011  25.0N  66.3W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 07.09.2011  25.7N  68.1W   INTENSE       LITTLE CHANGE
 00UTC 08.09.2011  26.4N  69.4W   INTENSE       LITTLE CHANGE
 12UTC 08.09.2011  27.5N  70.5W   INTENSE       LITTLE CHANGE
 00UTC 09.09.2011  28.7N  70.8W   INTENSE       LITTLE CHANGE
 12UTC 09.09.2011  30.2N  70.8W   INTENSE       LITTLE CHANGE

        TROPICAL STORM LEE        ANALYSED POSITION : 29.2N  91.9W

     ATCF IDENTIFIER : AL132011

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 03.09.2011  29.2N  91.9W    STRONG
 00UTC 04.09.2011  29.4N  92.3W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 04.09.2011  29.6N  92.4W   INTENSE   INTENSIFYING SLIGHTLY
 00UTC 05.09.2011  29.4N  92.0W    STRONG       LITTLE CHANGE
 12UTC 05.09.2011  29.5N  90.9W    STRONG    WEAKENING SLIGHTLY
 00UTC 06.09.2011  30.4N  88.8W   INTENSE   INTENSIFYING RAPIDLY
 12UTC 06.09.2011  31.7N  87.4W   MODERATE    WEAKENING RAPIDLY
 00UTC 07.09.2011  32.5N  87.3W   MODERATE   WEAKENING SLIGHTLY
 12UTC 07.09.2011    BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  12 HOURS
                   FORECAST POSITION AT T+ 12 : 24.1N 108.6W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 04.09.2011  24.1N 108.6W     WEAK
 12UTC 04.09.2011  24.2N 109.0W     WEAK        LITTLE CHANGE
 00UTC 05.09.2011  24.5N 110.9W     WEAK        LITTLE CHANGE
 12UTC 05.09.2011        BELOW TROPICAL STORM STRENGTH

 THIS INFORMATION IS PROVIDED AS GUIDANCE FOR TROPICAL CYCLONE
 RSMCS. IT REQUIRES INTERPRETATION BY TROPICAL CYCLONE SPECIALISTS
 AND SHOULD NOT BE CONSIDERED AS A FINAL PRODUCT


 MET OFFICE, EXETER, UK

 TOO 031629