057 WTNT80 EGRR 281559 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 28.08.2021 TROPICAL DEPRESSION 97L ANALYSED POSITION : 32.3N 51.5W ATCF IDENTIFIER : AL972021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 28.08.2021 32.3N 51.5W WEAK 00UTC 29.08.2021 32.9N 51.0W WEAK LITTLE CHANGE 12UTC 29.08.2021 34.5N 47.8W WEAK INTENSIFYING SLIGHTLY 00UTC 30.08.2021 36.4N 44.1W MODERATE INTENSIFYING SLIGHTLY 12UTC 30.08.2021 39.1N 39.6W MODERATE INTENSIFYING SLIGHTLY 00UTC 31.08.2021 42.5N 36.5W MODERATE LITTLE CHANGE 12UTC 31.08.2021 47.5N 36.1W MODERATE LITTLE CHANGE 00UTC 01.09.2021 53.0N 40.3W MODERATE WEAKENING SLIGHTLY 12UTC 01.09.2021 POST-TROPICAL HURRICANE IDA ANALYSED POSITION : 24.7N 85.6W ATCF IDENTIFIER : AL092021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 28.08.2021 24.7N 85.6W MODERATE 00UTC 29.08.2021 26.7N 87.5W MODERATE INTENSIFYING SLIGHTLY 12UTC 29.08.2021 28.6N 89.7W MODERATE LITTLE CHANGE 00UTC 30.08.2021 29.7N 91.2W STRONG INTENSIFYING SLIGHTLY 12UTC 30.08.2021 31.2N 91.8W MODERATE WEAKENING SLIGHTLY 00UTC 31.08.2021 32.5N 91.6W MODERATE LITTLE CHANGE 12UTC 31.08.2021 34.2N 90.0W MODERATE LITTLE CHANGE 00UTC 01.09.2021 36.0N 88.4W MODERATE LITTLE CHANGE 12UTC 01.09.2021 37.0N 86.8W MODERATE LITTLE CHANGE 00UTC 02.09.2021 37.0N 84.9W MODERATE WEAKENING SLIGHTLY 12UTC 02.09.2021 37.2N 83.6W WEAK WEAKENING SLIGHTLY 00UTC 03.09.2021 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 10L ANALYSED POSITION : 14.5N 49.9W ATCF IDENTIFIER : AL102021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 28.08.2021 14.5N 49.9W WEAK 00UTC 29.08.2021 15.7N 50.4W WEAK LITTLE CHANGE 12UTC 29.08.2021 17.2N 50.9W WEAK LITTLE CHANGE 00UTC 30.08.2021 18.8N 51.4W WEAK LITTLE CHANGE 12UTC 30.08.2021 19.8N 51.8W WEAK LITTLE CHANGE 00UTC 31.08.2021 20.8N 51.8W WEAK LITTLE CHANGE 12UTC 31.08.2021 22.0N 51.6W WEAK LITTLE CHANGE 00UTC 01.09.2021 23.2N 52.2W WEAK LITTLE CHANGE 12UTC 01.09.2021 24.6N 53.2W WEAK LITTLE CHANGE 00UTC 02.09.2021 26.1N 54.1W WEAK LITTLE CHANGE 12UTC 02.09.2021 27.7N 55.5W WEAK LITTLE CHANGE 00UTC 03.09.2021 29.4N 56.9W WEAK LITTLE CHANGE 12UTC 03.09.2021 31.3N 57.5W WEAK INTENSIFYING SLIGHTLY HURRICANE NORA ANALYSED POSITION : 17.7N 105.4W ATCF IDENTIFIER : EP142021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 28.08.2021 17.7N 105.4W MODERATE 00UTC 29.08.2021 20.6N 105.7W MODERATE LITTLE CHANGE 12UTC 29.08.2021 22.7N 106.9W MODERATE LITTLE CHANGE 00UTC 30.08.2021 23.3N 107.6W MODERATE LITTLE CHANGE 12UTC 30.08.2021 23.8N 108.5W MODERATE LITTLE CHANGE 00UTC 31.08.2021 24.4N 109.7W MODERATE LITTLE CHANGE 12UTC 31.08.2021 25.0N 110.8W MODERATE WEAKENING SLIGHTLY 00UTC 01.09.2021 26.1N 111.3W MODERATE WEAKENING SLIGHTLY 12UTC 01.09.2021 28.1N 112.1W MODERATE LITTLE CHANGE 00UTC 02.09.2021 30.7N 112.2W WEAK WEAKENING SLIGHTLY 12UTC 02.09.2021 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 108 HOURS FORECAST POSITION AT T+108 : 11.9N 34.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 02.09.2021 11.9N 34.7W WEAK 12UTC 02.09.2021 11.7N 39.4W WEAK LITTLE CHANGE 00UTC 03.09.2021 12.6N 42.7W WEAK LITTLE CHANGE 12UTC 03.09.2021 13.6N 46.6W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 126 HOURS FORECAST POSITION AT T+126 : 36.9N 24.4W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 03.09.2021 36.1N 25.1W WEAK WEAKENING SLIGHTLY 12UTC 03.09.2021 34.4N 26.0W 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 281559