026 WTNT80 EGRR 290403 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 29.08.2021 TROPICAL DEPRESSION 97L ANALYSED POSITION : 32.8N 50.4W ATCF IDENTIFIER : AL972021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 29.08.2021 32.8N 50.4W WEAK 12UTC 29.08.2021 34.4N 48.0W WEAK INTENSIFYING SLIGHTLY 00UTC 30.08.2021 36.6N 44.2W WEAK INTENSIFYING SLIGHTLY 12UTC 30.08.2021 38.5N 40.1W MODERATE INTENSIFYING SLIGHTLY 00UTC 31.08.2021 41.9N 36.3W MODERATE INTENSIFYING SLIGHTLY 12UTC 31.08.2021 45.9N 34.8W MODERATE LITTLE CHANGE 00UTC 01.09.2021 51.4N 37.2W MODERATE WEAKENING SLIGHTLY 12UTC 01.09.2021 POST-TROPICAL HURRICANE IDA ANALYSED POSITION : 26.5N 87.6W ATCF IDENTIFIER : AL092021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 29.08.2021 26.5N 87.6W STRONG 12UTC 29.08.2021 28.3N 89.6W STRONG INTENSIFYING SLIGHTLY 00UTC 30.08.2021 29.4N 90.9W INTENSE INTENSIFYING RAPIDLY 12UTC 30.08.2021 30.8N 91.5W STRONG WEAKENING RAPIDLY 00UTC 31.08.2021 32.2N 91.2W MODERATE WEAKENING SLIGHTLY 12UTC 31.08.2021 33.8N 89.8W MODERATE LITTLE CHANGE 00UTC 01.09.2021 35.5N 87.8W MODERATE LITTLE CHANGE 12UTC 01.09.2021 37.0N 85.5W MODERATE LITTLE CHANGE 00UTC 02.09.2021 37.5N 82.2W MODERATE LITTLE CHANGE 12UTC 02.09.2021 38.1N 79.0W MODERATE LITTLE CHANGE 00UTC 03.09.2021 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 10L ANALYSED POSITION : 16.1N 49.7W ATCF IDENTIFIER : AL102021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 29.08.2021 16.1N 49.7W WEAK 12UTC 29.08.2021 18.0N 50.3W WEAK LITTLE CHANGE 00UTC 30.08.2021 19.5N 51.1W WEAK LITTLE CHANGE 12UTC 30.08.2021 20.6N 51.7W WEAK LITTLE CHANGE 00UTC 31.08.2021 21.2N 51.1W WEAK LITTLE CHANGE 12UTC 31.08.2021 22.5N 51.3W WEAK LITTLE CHANGE 00UTC 01.09.2021 23.3N 51.8W WEAK LITTLE CHANGE 12UTC 01.09.2021 24.9N 52.9W WEAK LITTLE CHANGE 00UTC 02.09.2021 26.2N 54.2W WEAK LITTLE CHANGE 12UTC 02.09.2021 27.7N 55.8W WEAK LITTLE CHANGE 00UTC 03.09.2021 29.0N 56.7W WEAK LITTLE CHANGE 12UTC 03.09.2021 30.8N 57.3W WEAK INTENSIFYING SLIGHTLY 00UTC 04.09.2021 33.1N 56.9W WEAK INTENSIFYING SLIGHTLY HURRICANE NORA ANALYSED POSITION : 20.6N 105.5W ATCF IDENTIFIER : EP142021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 29.08.2021 20.6N 105.5W MODERATE 12UTC 29.08.2021 22.9N 105.9W MODERATE WEAKENING SLIGHTLY 00UTC 30.08.2021 27.2N 109.3W WEAK LITTLE CHANGE 12UTC 30.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM DEVELOPED IN THE MODEL ANALYSIS AT POSITION : 10.8N 148.8W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 29.08.2021 10.8N 148.8W WEAK 12UTC 29.08.2021 12.1N 150.7W WEAK LITTLE CHANGE 00UTC 30.08.2021 13.0N 151.8W WEAK LITTLE CHANGE 12UTC 30.08.2021 13.4N 152.4W WEAK LITTLE CHANGE 00UTC 31.08.2021 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 36 HOURS FORECAST POSITION AT T+ 36 : 8.5N 14.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 30.08.2021 8.5N 14.0W WEAK 00UTC 31.08.2021 10.0N 16.9W WEAK LITTLE CHANGE 12UTC 31.08.2021 11.4N 20.4W WEAK LITTLE CHANGE 00UTC 01.09.2021 11.9N 25.1W WEAK LITTLE CHANGE 12UTC 01.09.2021 11.6N 30.0W WEAK LITTLE CHANGE 00UTC 02.09.2021 11.7N 34.0W WEAK LITTLE CHANGE 12UTC 02.09.2021 11.9N 37.9W MODERATE INTENSIFYING SLIGHTLY 00UTC 03.09.2021 12.8N 41.7W MODERATE LITTLE CHANGE 12UTC 03.09.2021 13.8N 45.4W MODERATE INTENSIFYING SLIGHTLY 00UTC 04.09.2021 15.2N 48.3W STRONG INTENSIFYING SLIGHTLY NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 96 HOURS FORECAST POSITION AT T+ 96 : 15.5N 18.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 02.09.2021 15.5N 18.0W WEAK 12UTC 02.09.2021 15.8N 19.9W WEAK LITTLE CHANGE 00UTC 03.09.2021 16.9N 21.8W WEAK LITTLE CHANGE 12UTC 03.09.2021 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 144 HOURS FORECAST POSITION AT T+144 : 34.1N 72.9W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 04.09.2021 34.1N 72.9W WEAK 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 290403