000
WTNT80 EGRR 301800

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 12UTC 30.08.2011

        TROPICAL STORM KATIA      ANALYSED POSITION : 11.9N  32.6W

     ATCF IDENTIFIER : AL122011

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 30.08.2011  11.9N  32.6W     WEAK
 00UTC 31.08.2011  13.0N  36.0W     WEAK        LITTLE CHANGE
 12UTC 31.08.2011  13.6N  40.3W   MODERATE  INTENSIFYING SLIGHTLY
 00UTC 01.09.2011  14.1N  43.5W   MODERATE      LITTLE CHANGE
 12UTC 01.09.2011  14.6N  46.3W   MODERATE      LITTLE CHANGE
 00UTC 02.09.2011  15.8N  49.4W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 02.09.2011  16.7N  52.2W    STRONG       LITTLE CHANGE
 00UTC 03.09.2011  17.9N  54.4W    STRONG       LITTLE CHANGE
 12UTC 03.09.2011  18.8N  56.7W   MODERATE      LITTLE CHANGE
 00UTC 04.09.2011  19.6N  58.5W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 04.09.2011  20.3N  60.6W    STRONG       LITTLE CHANGE
 00UTC 05.09.2011  21.2N  62.4W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 05.09.2011  21.9N  64.2W   INTENSE       LITTLE CHANGE

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  12 HOURS
                   FORECAST POSITION AT T+ 12 : 16.1N 102.1W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 31.08.2011  16.1N 102.1W     WEAK
 12UTC 31.08.2011  15.8N 102.2W   MODERATE  INTENSIFYING SLIGHTLY
 00UTC 01.09.2011  16.6N 102.5W   MODERATE  INTENSIFYING SLIGHTLY
 12UTC 01.09.2011  17.4N 103.2W    STRONG       LITTLE CHANGE
 00UTC 02.09.2011  18.0N 104.6W     WEAK      WEAKENING RAPIDLY
 12UTC 02.09.2011       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 301648