386 
WTNT80 EGRR 181610

 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC

 AND ATLANTIC

             GLOBAL MODEL DATA TIME 12UTC 18.07.2023

        TROPICAL STORM CALVIN     ANALYSED POSITION : 17.7N 148.6W

     ATCF IDENTIFIER : EP032023

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 18.07.2023  17.7N 148.6W     WEAK
 00UTC 19.07.2023  17.7N 152.3W     WEAK        LITTLE CHANGE
 12UTC 19.07.2023  18.0N 155.9W     WEAK        LITTLE CHANGE
 00UTC 20.07.2023  19.2N 159.7W     WEAK        LITTLE CHANGE
 12UTC 20.07.2023        BELOW TROPICAL STORM STRENGTH

        TROPICAL STORM DON        ANALYSED POSITION : 35.9N  39.6W

     ATCF IDENTIFIER : AL052023

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 18.07.2023  35.9N  39.6W     WEAK
 00UTC 19.07.2023  34.4N  38.9W     WEAK        LITTLE CHANGE
 12UTC 19.07.2023  33.9N  39.6W     WEAK        LITTLE CHANGE
 00UTC 20.07.2023  33.8N  40.1W     WEAK        LITTLE CHANGE
 12UTC 20.07.2023  34.4N  41.3W     WEAK        LITTLE CHANGE
 00UTC 21.07.2023  35.0N  43.3W     WEAK        LITTLE CHANGE
 12UTC 21.07.2023  35.6N  45.5W     WEAK        LITTLE CHANGE
 00UTC 22.07.2023  36.7N  47.6W     WEAK        LITTLE CHANGE
 12UTC 22.07.2023  38.7N  49.7W     WEAK        LITTLE CHANGE
 00UTC 23.07.2023  41.6N  51.1W     WEAK        LITTLE CHANGE
 12UTC 23.07.2023  44.5N  50.9W     WEAK        LITTLE CHANGE
 00UTC 24.07.2023  46.9N  48.3W     WEAK        LITTLE CHANGE
 12UTC 24.07.2023        BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER  66 HOURS
                   FORECAST POSITION AT T+ 66 : 35.8N  75.0W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 21.07.2023  35.5N  72.8W     WEAK        LITTLE CHANGE
 00UTC 22.07.2023  34.5N  69.2W     WEAK        LITTLE CHANGE
 12UTC 22.07.2023  33.3N  66.3W     WEAK        LITTLE CHANGE
 00UTC 23.07.2023  33.4N  66.0W     WEAK        LITTLE CHANGE
 12UTC 23.07.2023  32.5N  65.2W     WEAK        LITTLE CHANGE
 00UTC 24.07.2023  32.0N  64.3W     WEAK        LITTLE CHANGE
 12UTC 24.07.2023        BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 120 HOURS
                   FORECAST POSITION AT T+120 : 37.3N  73.5W

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 12UTC 23.07.2023  37.3N  73.5W     WEAK
 00UTC 24.07.2023  37.2N  72.0W     WEAK        LITTLE CHANGE
 12UTC 24.07.2023  38.0N  70.8W     WEAK     WEAKENING SLIGHTLY
 00UTC 25.07.2023        BELOW TROPICAL STORM STRENGTH

             NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 132 HOURS
                   FORECAST POSITION AT T+132 : 36.6N   0.9E

  VERIFYING TIME     POSITION     STRENGTH        TENDENCY
  --------------     --------     --------        --------
 00UTC 24.07.2023  36.6N   0.9E     WEAK
 12UTC 24.07.2023  40.7N   4.8E     WEAK        LITTLE CHANGE
 00UTC 25.07.2023  42.3N   9.4E     WEAK        LITTLE CHANGE
 12UTC 25.07.2023        BELOW TROPICAL STORM STRENGTH


 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 181610