587 
WTNT80 EGRR 200401

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 00UTC 20.12.2021

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  36 HOURS
                   FORECAST POSITION AT T+ 36 : 26.5N  85.0W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 21.12.2021  26.5N  85.0W     WEAK
 00UTC 22.12.2021  29.3N  79.5W     WEAK    INTENSIFYING SLIGHTLY
 12UTC 22.12.2021  34.2N  72.0W   MODERATE  INTENSIFYING SLIGHTLY
 00UTC 23.12.2021  41.1N  62.1W   MODERATE  INTENSIFYING SLIGHTLY
 12UTC 23.12.2021  45.0N  55.0W    STRONG   INTENSIFYING SLIGHTLY
 00UTC 24.12.2021  46.6N  48.3W   MODERATE      LITTLE CHANGE
 12UTC 24.12.2021  47.4N  42.0W   MODERATE      LITTLE CHANGE
 00UTC 25.12.2021        BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 144 HOURS
                   FORECAST POSITION AT T+144 : 18.3N 100.5W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 26.12.2021  18.3N 100.5W     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 200401