276 WTNT80 EGRR 280402 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 28.08.2021 TROPICAL DEPRESSION 98L ANALYSED POSITION : 13.2N 49.2W ATCF IDENTIFIER : AL982021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 28.08.2021 13.2N 49.2W WEAK 12UTC 28.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 97L ANALYSED POSITION : 32.2N 52.5W ATCF IDENTIFIER : AL972021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 28.08.2021 32.2N 52.5W WEAK 12UTC 28.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM NORA ANALYSED POSITION : 16.0N 105.0W ATCF IDENTIFIER : EP142021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 28.08.2021 16.0N 105.0W MODERATE 12UTC 28.08.2021 17.5N 105.9W MODERATE INTENSIFYING SLIGHTLY 00UTC 29.08.2021 19.7N 106.0W STRONG INTENSIFYING SLIGHTLY 12UTC 29.08.2021 21.9N 106.8W STRONG LITTLE CHANGE 00UTC 30.08.2021 22.7N 107.6W MODERATE LITTLE CHANGE 12UTC 30.08.2021 23.3N 108.9W MODERATE LITTLE CHANGE 00UTC 31.08.2021 24.1N 109.9W MODERATE WEAKENING SLIGHTLY 12UTC 31.08.2021 24.9N 111.3W MODERATE LITTLE CHANGE 00UTC 01.09.2021 26.4N 112.3W MODERATE LITTLE CHANGE 12UTC 01.09.2021 28.3N 112.8W MODERATE WEAKENING SLIGHTLY 00UTC 02.09.2021 31.2N 113.0W MODERATE LITTLE CHANGE 12UTC 02.09.2021 34.5N 112.8W WEAK WEAKENING SLIGHTLY 00UTC 03.09.2021 BELOW TROPICAL STORM STRENGTH HURRICANE IDA ANALYSED POSITION : 22.7N 83.3W ATCF IDENTIFIER : AL092021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 28.08.2021 22.7N 83.3W MODERATE 12UTC 28.08.2021 24.2N 85.6W MODERATE INTENSIFYING SLIGHTLY 00UTC 29.08.2021 26.1N 87.7W MODERATE INTENSIFYING SLIGHTLY 12UTC 29.08.2021 27.9N 89.8W STRONG INTENSIFYING SLIGHTLY 00UTC 30.08.2021 29.2N 91.5W STRONG INTENSIFYING RAPIDLY 12UTC 30.08.2021 30.7N 92.4W STRONG WEAKENING SLIGHTLY 00UTC 31.08.2021 32.2N 92.5W MODERATE WEAKENING SLIGHTLY 12UTC 31.08.2021 33.7N 91.5W MODERATE LITTLE CHANGE 00UTC 01.09.2021 35.3N 90.5W MODERATE LITTLE CHANGE 12UTC 01.09.2021 36.1N 89.0W MODERATE WEAKENING SLIGHTLY 00UTC 02.09.2021 36.7N 87.7W MODERATE WEAKENING SLIGHTLY 12UTC 02.09.2021 36.8N 86.8W WEAK WEAKENING SLIGHTLY 00UTC 03.09.2021 37.1N 86.7W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 36 HOURS FORECAST POSITION AT T+ 36 : 16.5N 51.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 29.08.2021 16.5N 51.7W WEAK 00UTC 30.08.2021 17.9N 52.1W WEAK LITTLE CHANGE 12UTC 30.08.2021 19.0N 52.5W WEAK LITTLE CHANGE 00UTC 31.08.2021 19.7N 52.3W WEAK LITTLE CHANGE 12UTC 31.08.2021 20.9N 52.5W WEAK LITTLE CHANGE 00UTC 01.09.2021 21.8N 53.5W WEAK LITTLE CHANGE 12UTC 01.09.2021 22.7N 54.5W WEAK LITTLE CHANGE 00UTC 02.09.2021 24.3N 55.9W WEAK LITTLE CHANGE 12UTC 02.09.2021 24.9N 57.3W WEAK LITTLE CHANGE 00UTC 03.09.2021 25.9N 58.6W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 36 HOURS FORECAST POSITION AT T+ 36 : 34.2N 48.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 29.08.2021 34.2N 48.0W WEAK 00UTC 30.08.2021 36.1N 44.0W WEAK INTENSIFYING SLIGHTLY 12UTC 30.08.2021 37.5N 39.9W MODERATE LITTLE CHANGE 00UTC 31.08.2021 40.3N 36.3W MODERATE LITTLE CHANGE 12UTC 31.08.2021 43.9N 33.3W MODERATE LITTLE CHANGE 00UTC 01.09.2021 48.4N 32.5W MODERATE LITTLE CHANGE 12UTC 01.09.2021 53.6N 37.7W MODERATE LITTLE CHANGE 00UTC 02.09.2021 54.7N 42.7W MODERATE LITTLE CHANGE 12UTC 02.09.2021 POST-TROPICAL NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 72 HOURS FORECAST POSITION AT T+ 72 : 9.8N 17.2W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 31.08.2021 9.8N 17.2W WEAK 12UTC 31.08.2021 11.3N 20.4W WEAK LITTLE CHANGE 00UTC 01.09.2021 12.5N 25.1W WEAK LITTLE CHANGE 12UTC 01.09.2021 12.0N 30.1W WEAK INTENSIFYING SLIGHTLY 00UTC 02.09.2021 12.5N 34.4W MODERATE LITTLE CHANGE 12UTC 02.09.2021 13.4N 37.7W MODERATE LITTLE CHANGE 00UTC 03.09.2021 14.5N 41.0W MODERATE 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 280402