374 
WTNT80 EGRR 161559

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 12UTC 16.09.2018

   TROPICAL DEPRESSION FLORENCE   ANALYSED POSITION : 33.7N  81.6W

     ATCF IDENTIFIER : AL062018

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 16.09.2018  33.7N  81.6W     WEAK
 00UTC 17.09.2018  34.7N  82.3W     WEAK        LITTLE CHANGE
 12UTC 17.09.2018  38.0N  82.2W     WEAK        LITTLE CHANGE
 00UTC 18.09.2018  39.5N  81.1W     WEAK        LITTLE CHANGE
 12UTC 18.09.2018  40.9N  77.1W     WEAK        LITTLE CHANGE
 00UTC 19.09.2018  40.5N  72.7W     WEAK        LITTLE CHANGE
 12UTC 19.09.2018  41.1N  66.1W   MODERATE  INTENSIFYING SLIGHTLY
 00UTC 20.09.2018  41.5N  59.3W   MODERATE      LITTLE CHANGE
 12UTC 20.09.2018  42.3N  51.8W   MODERATE      LITTLE CHANGE
 00UTC 21.09.2018  44.7N  44.3W   MODERATE  INTENSIFYING SLIGHTLY
 12UTC 21.09.2018  46.6N  39.1W    STRONG   INTENSIFYING RAPIDLY
 00UTC 22.09.2018  51.0N  32.9W    STRONG       LITTLE CHANGE
 12UTC 22.09.2018  POST-TROPICAL

        TROPICAL STORM HELENE     ANALYSED POSITION : 43.4N  27.2W

     ATCF IDENTIFIER : AL082018

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 16.09.2018  43.4N  27.2W   MODERATE
 00UTC 17.09.2018  45.8N  21.6W   MODERATE      LITTLE CHANGE
 12UTC 17.09.2018  48.1N  14.0W   MODERATE      LITTLE CHANGE
 00UTC 18.09.2018  52.4N   6.3W   MODERATE      LITTLE CHANGE
 12UTC 18.09.2018        BELOW TROPICAL STORM STRENGTH

   TROPICAL DEPRESSION ISAAC      ANALYSED POSITION : 16.7N  73.8W

     ATCF IDENTIFIER : AL092018

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 16.09.2018  16.7N  73.8W     WEAK
 00UTC 17.09.2018  17.2N  76.0W     WEAK        LITTLE CHANGE
 12UTC 17.09.2018        BELOW TROPICAL STORM STRENGTH

   TROPICAL DEPRESSION JOYCE      ANALYSED POSITION : 34.5N  35.2W

     ATCF IDENTIFIER : AL102018

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 16.09.2018  34.5N  35.2W     WEAK
 00UTC 17.09.2018  34.3N  31.6W     WEAK     WEAKENING SLIGHTLY
 12UTC 17.09.2018  33.9N  29.0W     WEAK        LITTLE CHANGE
 00UTC 18.09.2018  33.0N  27.0W     WEAK        LITTLE CHANGE
 12UTC 18.09.2018  31.7N  27.2W     WEAK        LITTLE CHANGE
 00UTC 19.09.2018  30.6N  28.3W     WEAK        LITTLE CHANGE
 12UTC 19.09.2018  30.1N  29.8W     WEAK        LITTLE CHANGE
 00UTC 20.09.2018  29.8N  31.4W     WEAK        LITTLE CHANGE
 12UTC 20.09.2018  30.0N  33.5W     WEAK        LITTLE CHANGE
 00UTC 21.09.2018  30.3N  35.3W     WEAK        LITTLE CHANGE
 12UTC 21.09.2018        BELOW TROPICAL STORM STRENGTH

   TROPICAL DEPRESSION OLIVIA     ANALYSED POSITION : 21.8N 173.6W

     ATCF IDENTIFIER : EP172018

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 16.09.2018  21.8N 173.6W     WEAK
 00UTC 17.09.2018        BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 144 HOURS
                   FORECAST POSITION AT T+144 : 38.2N  31.1W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 22.09.2018  38.2N  31.1W     WEAK


 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.

 BULLETINS ARE NOW AVAILABLE WHICH PROVIDE EXPLICIT GUIDANCE
 ON CENTRAL PRESSURE AND MAXIMUM WIND SPEED.
 FOR FURTHER INFORMATION CONTACT TROPICAL_CYCLONES@METOFFICE.GOV.UK

 MET OFFICE, EXETER, UK

 TOO 161559