000
WTNT80 EGRR 071800

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 12UTC 07.09.2011


        TROPICAL STORM MARIA      ANALYSED POSITION : 12.2N  40.6W

     ATCF IDENTIFIER : AL142011

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 07.09.2011  12.2N  40.6W     WEAK
 00UTC 08.09.2011  13.6N  44.9W     WEAK        LITTLE CHANGE
 12UTC 08.09.2011  13.9N  49.5W     WEAK        LITTLE CHANGE
 00UTC 09.09.2011  14.8N  53.3W     WEAK        LITTLE CHANGE
 12UTC 09.09.2011  15.0N  57.1W   MODERATE      LITTLE CHANGE
 00UTC 10.09.2011  15.9N  60.3W   MODERATE      LITTLE CHANGE
 12UTC 10.09.2011  16.6N  62.8W   MODERATE      LITTLE CHANGE
 00UTC 11.09.2011  18.2N  65.3W   MODERATE      LITTLE CHANGE
 12UTC 11.09.2011  19.9N  67.2W   MODERATE      LITTLE CHANGE
 00UTC 12.09.2011  21.2N  69.0W   MODERATE  INTENSIFYING SLIGHTLY
 12UTC 12.09.2011  22.4N  70.2W    STRONG   INTENSIFYING SLIGHTLY
 00UTC 13.09.2011  23.4N  71.9W   MODERATE      LITTLE CHANGE
 12UTC 13.09.2011  24.3N  72.8W    STRONG   INTENSIFYING SLIGHTLY

             HURRICANE KATIA      ANALYSED POSITION : 29.2N  68.6W

     ATCF IDENTIFIER : AL122011

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 07.09.2011  29.2N  68.6W   INTENSE
 00UTC 08.09.2011  30.4N  70.2W   INTENSE    WEAKENING SLIGHTLY
 12UTC 08.09.2011  32.5N  70.5W   INTENSE    WEAKENING SLIGHTLY
 00UTC 09.09.2011  35.5N  69.8W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 09.09.2011  38.3N  67.4W   INTENSE   INTENSIFYING SLIGHTLY
 00UTC 10.09.2011  40.6N  61.6W   INTENSE   INTENSIFYING RAPIDLY
 12UTC 10.09.2011  42.0N  51.5W   INTENSE     WEAKENING RAPIDLY
 00UTC 11.09.2011  44.8N  38.9W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 11.09.2011  EXTRA-TROPICAL


    TROPICAL STORM DEVELOPED IN THE MODEL ANALYSIS AT POSITION : 19.5N  93.0W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 07.09.2011  19.5N  93.0W     WEAK
 00UTC 08.09.2011  20.2N  92.6W     WEAK        LITTLE CHANGE
 12UTC 08.09.2011  20.5N  92.3W   MODERATE  INTENSIFYING RAPIDLY
 00UTC 09.09.2011  21.0N  92.4W    STRONG   INTENSIFYING RAPIDLY
 12UTC 09.09.2011  21.7N  92.6W   INTENSE       LITTLE CHANGE
 00UTC 10.09.2011  22.7N  93.0W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 10.09.2011  23.6N  93.1W   INTENSE       LITTLE CHANGE
 00UTC 11.09.2011  24.7N  93.7W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 11.09.2011  24.8N  94.4W   INTENSE    WEAKENING SLIGHTLY
 00UTC 12.09.2011  24.3N  95.2W   INTENSE       LITTLE CHANGE
 12UTC 12.09.2011  23.5N  95.9W   INTENSE       LITTLE CHANGE
 00UTC 13.09.2011  22.6N  96.9W   INTENSE   INTENSIFYING RAPIDLY
 12UTC 13.09.2011  22.0N  97.6W   INTENSE    WEAKENING SLIGHTLY




 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 071654