264 
WTNT80 EGRR 171606

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 12UTC 17.08.2018

        TROPICAL STORM ERNESTO    ANALYSED POSITION : 46.4N  35.0W

     ATCF IDENTIFIER : AL052018

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 17.08.2018  46.4N  35.0W     WEAK
 00UTC 18.08.2018  49.5N  27.2W     WEAK        LITTLE CHANGE
 12UTC 18.08.2018  52.4N  17.9W     WEAK        LITTLE CHANGE
 00UTC 19.08.2018  54.5N   8.8W     WEAK     WEAKENING SLIGHTLY
 12UTC 19.08.2018  POST-TROPICAL

             HURRICANE LANE       ANALYSED POSITION : 10.8N 132.5W

     ATCF IDENTIFIER : EP142018

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 17.08.2018  10.8N 132.5W    STRONG
 00UTC 18.08.2018  11.4N 135.2W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 18.08.2018  11.9N 138.5W    STRONG    WEAKENING SLIGHTLY
 00UTC 19.08.2018  12.3N 141.5W    STRONG    WEAKENING SLIGHTLY
 12UTC 19.08.2018  12.7N 144.1W    STRONG       LITTLE CHANGE
 00UTC 20.08.2018  13.0N 146.3W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 20.08.2018  13.4N 148.3W    STRONG       LITTLE CHANGE
 00UTC 21.08.2018  13.8N 149.8W    STRONG       LITTLE CHANGE
 12UTC 21.08.2018  14.1N 151.3W    STRONG       LITTLE CHANGE
 00UTC 22.08.2018  14.4N 152.8W    STRONG    WEAKENING SLIGHTLY
 12UTC 22.08.2018  14.8N 154.4W    STRONG       LITTLE CHANGE
 00UTC 23.08.2018  15.3N 155.8W    STRONG       LITTLE CHANGE
 12UTC 23.08.2018  15.9N 157.1W    STRONG       LITTLE CHANGE

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 138 HOURS
                   FORECAST POSITION AT T+138 : 36.4N  40.8W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 23.08.2018  35.5N  40.2W     WEAK     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.

 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 171606