326 WTNT80 EGRR 231600 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 23.08.2021 TROPICAL DEPRESSION HENRI ANALYSED POSITION : 41.4N 74.1W ATCF IDENTIFIER : AL082021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.08.2021 41.4N 74.1W WEAK 00UTC 24.08.2021 41.4N 72.9W WEAK LITTLE CHANGE 12UTC 24.08.2021 42.2N 70.3W WEAK LITTLE CHANGE 00UTC 25.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM MARTY ANALYSED POSITION : 20.7N 111.2W ATCF IDENTIFIER : EP132021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.08.2021 20.7N 111.2W WEAK 00UTC 24.08.2021 21.6N 114.6W WEAK LITTLE CHANGE 12UTC 24.08.2021 21.4N 117.7W WEAK LITTLE CHANGE 00UTC 25.08.2021 21.1N 120.0W WEAK LITTLE CHANGE 12UTC 25.08.2021 21.6N 121.7W WEAK LITTLE CHANGE 00UTC 26.08.2021 21.7N 123.6W WEAK LITTLE CHANGE 12UTC 26.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM LINDA ANALYSED POSITION : 21.1N 155.4W ATCF IDENTIFIER : EP122021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.08.2021 21.1N 155.4W WEAK 00UTC 24.08.2021 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 18 HOURS FORECAST POSITION AT T+ 18 : 12.8N 132.2W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 24.08.2021 12.8N 131.5W WEAK WEAKENING RAPIDLY 00UTC 25.08.2021 12.3N 130.3W WEAK LITTLE CHANGE 12UTC 25.08.2021 12.3N 129.1W WEAK LITTLE CHANGE 00UTC 26.08.2021 12.7N 127.9W WEAK LITTLE CHANGE 12UTC 26.08.2021 13.1N 127.4W WEAK LITTLE CHANGE 00UTC 27.08.2021 13.6N 127.3W WEAK LITTLE CHANGE 12UTC 27.08.2021 13.5N 127.5W WEAK LITTLE CHANGE 00UTC 28.08.2021 13.6N 128.0W WEAK LITTLE CHANGE 12UTC 28.08.2021 13.6N 128.4W WEAK LITTLE CHANGE 00UTC 29.08.2021 13.9N 128.4W WEAK LITTLE CHANGE 12UTC 29.08.2021 13.9N 127.8W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 54 HOURS FORECAST POSITION AT T+ 54 : 10.3N 140.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 26.08.2021 10.3N 139.7W WEAK LITTLE CHANGE 12UTC 26.08.2021 10.2N 139.4W WEAK LITTLE CHANGE 00UTC 27.08.2021 9.8N 139.4W WEAK LITTLE CHANGE 12UTC 27.08.2021 9.4N 139.7W WEAK LITTLE CHANGE 00UTC 28.08.2021 9.2N 139.9W WEAK LITTLE CHANGE 12UTC 28.08.2021 9.4N 140.4W WEAK LITTLE CHANGE 00UTC 29.08.2021 9.7N 140.8W WEAK LITTLE CHANGE 12UTC 29.08.2021 10.2N 141.4W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 90 HOURS FORECAST POSITION AT T+ 90 : 14.0N 102.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 27.08.2021 14.5N 103.7W WEAK LITTLE CHANGE 00UTC 28.08.2021 15.3N 106.5W WEAK LITTLE CHANGE 12UTC 28.08.2021 15.7N 108.0W WEAK LITTLE CHANGE 00UTC 29.08.2021 16.0N 109.3W WEAK LITTLE CHANGE 12UTC 29.08.2021 16.2N 109.5W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 90 HOURS FORECAST POSITION AT T+ 90 : 30.6N 63.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 27.08.2021 31.1N 64.4W WEAK WEAKENING SLIGHTLY 00UTC 28.08.2021 31.7N 65.1W WEAK LITTLE CHANGE 12UTC 28.08.2021 32.2N 64.2W WEAK LITTLE CHANGE 00UTC 29.08.2021 31.4N 63.5W WEAK LITTLE CHANGE 12UTC 29.08.2021 29.7N 62.3W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 138 HOURS FORECAST POSITION AT T+138 : 19.0N 91.5W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 29.08.2021 19.7N 93.3W 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 231600