751 WTNT80 EGRR 231611 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 23.09.2024 TROPICAL DEPRESSION 91C ANALYSED POSITION : 11.9N 142.3W ATCF IDENTIFIER : CP912024 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.09.2024 11.9N 142.3W WEAK 00UTC 24.09.2024 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 97L ANALYSED POSITION : 16.7N 82.2W ATCF IDENTIFIER : AL972024 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.09.2024 16.7N 82.2W WEAK 00UTC 24.09.2024 18.6N 82.2W WEAK LITTLE CHANGE 12UTC 24.09.2024 18.6N 84.6W WEAK LITTLE CHANGE 00UTC 25.09.2024 19.1N 84.6W MODERATE LITTLE CHANGE 12UTC 25.09.2024 20.6N 85.1W MODERATE LITTLE CHANGE 00UTC 26.09.2024 22.8N 85.4W MODERATE INTENSIFYING SLIGHTLY 12UTC 26.09.2024 25.3N 85.5W MODERATE LITTLE CHANGE 00UTC 27.09.2024 28.5N 85.0W MODERATE INTENSIFYING SLIGHTLY 12UTC 27.09.2024 33.2N 83.9W MODERATE WEAKENING SLIGHTLY 00UTC 28.09.2024 38.1N 85.2W MODERATE WEAKENING SLIGHTLY 12UTC 28.09.2024 39.1N 91.0W MODERATE LITTLE CHANGE 00UTC 29.09.2024 39.0N 92.2W WEAK WEAKENING SLIGHTLY 12UTC 29.09.2024 BELOW TROPICAL STORM STRENGTH TROPICAL STORM JOHN ANALYSED POSITION : 14.2N 99.1W ATCF IDENTIFIER : EP102024 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.09.2024 14.2N 99.1W MODERATE 00UTC 24.09.2024 15.0N 98.9W MODERATE LITTLE CHANGE 12UTC 24.09.2024 15.9N 99.1W MODERATE LITTLE CHANGE 00UTC 25.09.2024 16.1N 100.0W MODERATE LITTLE CHANGE 12UTC 25.09.2024 15.8N 101.0W MODERATE LITTLE CHANGE 00UTC 26.09.2024 15.9N 100.6W MODERATE LITTLE CHANGE 12UTC 26.09.2024 16.3N 100.4W MODERATE LITTLE CHANGE 00UTC 27.09.2024 16.4N 100.6W MODERATE LITTLE CHANGE 12UTC 27.09.2024 16.4N 100.6W MODERATE LITTLE CHANGE 00UTC 28.09.2024 17.4N 102.2W WEAK WEAKENING SLIGHTLY 12UTC 28.09.2024 BELOW TROPICAL STORM STRENGTH TROPICAL STORM DEVELOPED IN THE MODEL ANALYSIS AT POSITION : 31.0N 55.8W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.09.2024 31.0N 55.8W WEAK 00UTC 24.09.2024 34.1N 54.1W WEAK LITTLE CHANGE 12UTC 24.09.2024 37.2N 51.2W WEAK LITTLE CHANGE 00UTC 25.09.2024 38.5N 49.2W WEAK LITTLE CHANGE 12UTC 25.09.2024 39.0N 47.6W WEAK LITTLE CHANGE 00UTC 26.09.2024 39.4N 47.4W WEAK LITTLE CHANGE 12UTC 26.09.2024 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 96 HOURS FORECAST POSITION AT T+ 96 : 16.1N 29.8W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 27.09.2024 16.1N 29.8W WEAK 00UTC 28.09.2024 17.5N 32.2W WEAK LITTLE CHANGE 12UTC 28.09.2024 17.7N 35.2W WEAK LITTLE CHANGE 00UTC 29.09.2024 18.3N 38.4W WEAK LITTLE CHANGE 12UTC 29.09.2024 19.5N 41.1W WEAK LITTLE CHANGE 00UTC 30.09.2024 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 108 HOURS FORECAST POSITION AT T+108 : 19.9N 47.4W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 28.09.2024 19.9N 47.4W WEAK 12UTC 28.09.2024 21.2N 49.4W WEAK LITTLE CHANGE 00UTC 29.09.2024 22.5N 50.3W WEAK LITTLE CHANGE 12UTC 29.09.2024 23.6N 51.1W WEAK LITTLE CHANGE 00UTC 30.09.2024 25.5N 51.6W WEAK LITTLE CHANGE 12UTC 30.09.2024 28.6N 51.3W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 144 HOURS FORECAST POSITION AT T+144 : 38.9N 57.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 29.09.2024 38.9N 57.0W MODERATE 00UTC 30.09.2024 39.4N 57.9W WEAK LITTLE CHANGE 12UTC 30.09.2024 39.1N 57.7W 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 231611