757 
WTNT80 EGRR 250402

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 00UTC 25.09.2021

        TROPICAL STORM TERESA     ANALYSED POSITION : 34.2N  65.1W

     ATCF IDENTIFIER : AL192021

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 25.09.2021  34.2N  65.1W     WEAK
 12UTC 25.09.2021  34.5N  65.1W     WEAK        LITTLE CHANGE
 00UTC 26.09.2021        BELOW TROPICAL STORM STRENGTH

             HURRICANE SAM        ANALYSED POSITION : 12.4N  45.6W

     ATCF IDENTIFIER : AL182021

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 25.09.2021  12.4N  45.6W   MODERATE
 12UTC 25.09.2021  13.3N  48.3W   MODERATE  INTENSIFYING SLIGHTLY
 00UTC 26.09.2021  13.6N  50.0W   MODERATE      LITTLE CHANGE
 12UTC 26.09.2021  13.9N  51.2W   MODERATE      LITTLE CHANGE
 00UTC 27.09.2021  14.6N  52.0W   MODERATE      LITTLE CHANGE
 12UTC 27.09.2021  15.2N  52.8W    STRONG       LITTLE CHANGE
 00UTC 28.09.2021  16.1N  53.5W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 28.09.2021  16.9N  54.4W    STRONG       LITTLE CHANGE
 00UTC 29.09.2021  17.5N  55.3W    STRONG       LITTLE CHANGE
 12UTC 29.09.2021  18.1N  56.7W    STRONG       LITTLE CHANGE
 00UTC 30.09.2021  19.0N  58.2W    STRONG   INTENSIFYING SLIGHTLY
 12UTC 30.09.2021  20.3N  60.2W    STRONG       LITTLE CHANGE
 00UTC 01.10.2021  22.2N  62.2W   INTENSE   INTENSIFYING SLIGHTLY

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  18 HOURS
                   FORECAST POSITION AT T+ 18 : 29.9N  34.0W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 26.09.2021  30.6N  33.7W     WEAK        LITTLE CHANGE
 12UTC 26.09.2021  30.5N  32.8W     WEAK        LITTLE CHANGE
 00UTC 27.09.2021  31.0N  32.6W     WEAK        LITTLE CHANGE
 12UTC 27.09.2021  31.7N  32.8W     WEAK        LITTLE CHANGE
 00UTC 28.09.2021  32.8N  33.8W     WEAK        LITTLE CHANGE
 12UTC 28.09.2021        BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  72 HOURS
                   FORECAST POSITION AT T+ 72 :  8.3N  15.7W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 28.09.2021   8.3N  15.7W     WEAK
 12UTC 28.09.2021   8.0N  18.3W     WEAK        LITTLE CHANGE
 00UTC 29.09.2021   8.1N  20.9W     WEAK    INTENSIFYING SLIGHTLY
 12UTC 29.09.2021   8.1N  23.7W   MODERATE  INTENSIFYING SLIGHTLY
 00UTC 30.09.2021   8.3N  26.2W   MODERATE      LITTLE CHANGE
 12UTC 30.09.2021   8.3N  28.0W   MODERATE  INTENSIFYING SLIGHTLY
 00UTC 01.10.2021   8.9N  29.5W   MODERATE   WEAKENING SLIGHTLY

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 126 HOURS
                   FORECAST POSITION AT T+126 : 13.5N 132.6W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 30.09.2021  13.8N 133.1W     WEAK      WEAKENING RAPIDLY
 00UTC 01.10.2021  14.5N 134.5W     WEAK        LITTLE CHANGE


 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 250402