891 
WTNT80 EGRR 040401

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 00UTC 04.09.2021

   TROPICAL DEPRESSION 91L        ANALYSED POSITION : 15.9N  92.0W

     ATCF IDENTIFIER : AL912021

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 04.09.2021  15.9N  92.0W     WEAK
 12UTC 04.09.2021        BELOW TROPICAL STORM STRENGTH

             HURRICANE LARRY      ANALYSED POSITION : 15.2N  42.6W

     ATCF IDENTIFIER : AL122021

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 04.09.2021  15.2N  42.6W    STRONG
 12UTC 04.09.2021  16.4N  45.2W    STRONG       LITTLE CHANGE
 00UTC 05.09.2021  17.7N  47.5W    STRONG       LITTLE CHANGE
 12UTC 05.09.2021  19.2N  49.4W   INTENSE   INTENSIFYING SLIGHTLY
 00UTC 06.09.2021  20.6N  51.1W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 06.09.2021  21.8N  53.0W   INTENSE       LITTLE CHANGE
 00UTC 07.09.2021  22.8N  54.6W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 07.09.2021  24.0N  56.2W   INTENSE   INTENSIFYING SLIGHTLY
 00UTC 08.09.2021  25.6N  57.6W   INTENSE   INTENSIFYING SLIGHTLY
 12UTC 08.09.2021  27.5N  59.3W   INTENSE   INTENSIFYING RAPIDLY
 00UTC 09.09.2021  30.0N  60.9W   INTENSE       LITTLE CHANGE
 12UTC 09.09.2021  33.1N  61.9W   INTENSE    WEAKENING SLIGHTLY
 00UTC 10.09.2021  37.2N  60.9W   INTENSE       LITTLE CHANGE

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  60 HOURS
                   FORECAST POSITION AT T+ 60 : 12.3N 121.2W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 06.09.2021  12.3N 121.2W     WEAK
 00UTC 07.09.2021  13.4N 120.9W     WEAK        LITTLE CHANGE
 12UTC 07.09.2021  14.6N 120.2W     WEAK        LITTLE CHANGE
 00UTC 08.09.2021  14.7N 119.3W     WEAK        LITTLE CHANGE
 12UTC 08.09.2021        BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  90 HOURS
                   FORECAST POSITION AT T+ 90 : 18.8N 109.1W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 08.09.2021  18.5N 109.6W     WEAK     WEAKENING SLIGHTLY
 12UTC 08.09.2021  18.6N 110.6W     WEAK        LITTLE CHANGE
 00UTC 09.09.2021  19.2N 110.7W   MODERATE      LITTLE CHANGE
 12UTC 09.09.2021  19.9N 112.0W   MODERATE      LITTLE CHANGE
 00UTC 10.09.2021  20.9N 113.0W   MODERATE      LITTLE CHANGE

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 102 HOURS
                   FORECAST POSITION AT T+102 : 13.2N 147.2W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 08.09.2021  13.4N 147.7W     WEAK     WEAKENING SLIGHTLY
 00UTC 09.09.2021  14.1N 148.4W     WEAK        LITTLE CHANGE
 12UTC 09.09.2021  14.8N 149.5W     WEAK        LITTLE CHANGE
 00UTC 10.09.2021  15.5N 150.4W     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 040401