500 WTNT80 EGRR 260401 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 26.08.2021 TROPICAL DEPRESSION 99L ANALYSED POSITION : 13.9N 77.4W ATCF IDENTIFIER : AL992021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 26.08.2021 13.9N 77.4W WEAK 12UTC 26.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 97L ANALYSED POSITION : 23.5N 58.9W ATCF IDENTIFIER : AL972021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 26.08.2021 23.5N 58.9W WEAK 12UTC 26.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 98L ANALYSED POSITION : 11.5N 37.1W ATCF IDENTIFIER : AL982021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 26.08.2021 11.5N 37.1W WEAK 12UTC 26.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 14E ANALYSED POSITION : 11.6N 99.0W ATCF IDENTIFIER : EP142021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 26.08.2021 11.6N 99.0W WEAK 12UTC 26.08.2021 12.3N 99.4W WEAK LITTLE CHANGE 00UTC 27.08.2021 13.8N 102.0W MODERATE INTENSIFYING SLIGHTLY 12UTC 27.08.2021 14.8N 104.6W MODERATE LITTLE CHANGE 00UTC 28.08.2021 15.6N 106.4W MODERATE INTENSIFYING SLIGHTLY 12UTC 28.08.2021 16.9N 106.9W MODERATE INTENSIFYING SLIGHTLY 00UTC 29.08.2021 18.6N 106.9W STRONG INTENSIFYING SLIGHTLY 12UTC 29.08.2021 21.1N 107.5W STRONG INTENSIFYING SLIGHTLY 00UTC 30.08.2021 22.8N 108.6W STRONG INTENSIFYING SLIGHTLY 12UTC 30.08.2021 23.7N 109.5W STRONG LITTLE CHANGE 00UTC 31.08.2021 25.0N 110.4W STRONG LITTLE CHANGE 12UTC 31.08.2021 26.6N 111.4W STRONG LITTLE CHANGE 00UTC 01.09.2021 28.6N 111.6W STRONG WEAKENING SLIGHTLY NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 60 HOURS FORECAST POSITION AT T+ 60 : 23.2N 86.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 28.08.2021 23.2N 86.0W WEAK 00UTC 29.08.2021 25.0N 87.9W WEAK LITTLE CHANGE 12UTC 29.08.2021 26.7N 89.8W MODERATE INTENSIFYING SLIGHTLY 00UTC 30.08.2021 28.2N 91.2W MODERATE INTENSIFYING SLIGHTLY 12UTC 30.08.2021 29.5N 91.9W STRONG INTENSIFYING SLIGHTLY 00UTC 31.08.2021 30.8N 92.1W MODERATE LITTLE CHANGE 12UTC 31.08.2021 32.5N 92.1W MODERATE LITTLE CHANGE 00UTC 01.09.2021 33.3N 91.7W MODERATE WEAKENING SLIGHTLY NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 108 HOURS FORECAST POSITION AT T+108 : 33.8N 45.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 30.08.2021 33.8N 45.3W WEAK 00UTC 31.08.2021 35.6N 41.5W WEAK LITTLE CHANGE 12UTC 31.08.2021 38.1N 37.5W WEAK LITTLE CHANGE 00UTC 01.09.2021 42.6N 33.0W 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 260401