289 WTNT80 EGRR 191600 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 19.08.2021 TROPICAL DEPRESSION FRED ANALYSED POSITION : 42.4N 75.9W ATCF IDENTIFIER : AL062021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 19.08.2021 42.4N 75.9W WEAK 00UTC 20.08.2021 42.7N 72.8W WEAK LITTLE CHANGE 12UTC 20.08.2021 44.5N 68.6W WEAK LITTLE CHANGE 00UTC 21.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM GRACE ANALYSED POSITION : 20.2N 87.7W ATCF IDENTIFIER : AL072021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 19.08.2021 20.2N 87.7W MODERATE 00UTC 20.08.2021 20.7N 91.2W MODERATE LITTLE CHANGE 12UTC 20.08.2021 20.4N 93.9W STRONG INTENSIFYING SLIGHTLY 00UTC 21.08.2021 20.3N 96.2W STRONG INTENSIFYING SLIGHTLY 12UTC 21.08.2021 18.8N 99.3W WEAK WEAKENING RAPIDLY 00UTC 22.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM HENRI ANALYSED POSITION : 29.4N 70.4W ATCF IDENTIFIER : AL082021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 19.08.2021 29.4N 70.4W MODERATE 00UTC 20.08.2021 29.6N 72.5W MODERATE LITTLE CHANGE 12UTC 20.08.2021 30.0N 74.1W STRONG LITTLE CHANGE 00UTC 21.08.2021 31.1N 74.5W STRONG LITTLE CHANGE 12UTC 21.08.2021 33.5N 73.6W INTENSE INTENSIFYING RAPIDLY 00UTC 22.08.2021 37.5N 72.4W INTENSE INTENSIFYING SLIGHTLY 12UTC 22.08.2021 40.5N 73.1W STRONG WEAKENING SLIGHTLY 00UTC 23.08.2021 41.4N 73.6W MODERATE WEAKENING RAPIDLY 12UTC 23.08.2021 42.2N 72.5W MODERATE WEAKENING SLIGHTLY 00UTC 24.08.2021 42.7N 71.0W WEAK WEAKENING SLIGHTLY 12UTC 24.08.2021 43.6N 68.7W WEAK LITTLE CHANGE 00UTC 25.08.2021 45.9N 64.9W WEAK LITTLE CHANGE 12UTC 25.08.2021 47.8N 58.7W WEAK LITTLE CHANGE TROPICAL STORM LINDA ANALYSED POSITION : 19.8N 137.1W ATCF IDENTIFIER : EP122021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 19.08.2021 19.8N 137.1W MODERATE 00UTC 20.08.2021 20.2N 140.4W MODERATE WEAKENING SLIGHTLY 12UTC 20.08.2021 20.5N 143.4W WEAK LITTLE CHANGE 00UTC 21.08.2021 20.8N 146.0W WEAK LITTLE CHANGE 12UTC 21.08.2021 21.0N 148.4W WEAK LITTLE CHANGE 00UTC 22.08.2021 21.4N 150.4W WEAK LITTLE CHANGE 12UTC 22.08.2021 22.2N 152.3W WEAK LITTLE CHANGE 00UTC 23.08.2021 22.6N 154.5W WEAK LITTLE CHANGE 12UTC 23.08.2021 22.7N 156.8W WEAK WEAKENING SLIGHTLY 00UTC 24.08.2021 22.8N 159.4W WEAK LITTLE CHANGE 12UTC 24.08.2021 23.0N 162.2W WEAK LITTLE CHANGE 00UTC 25.08.2021 23.6N 164.9W WEAK LITTLE CHANGE 12UTC 25.08.2021 24.1N 167.1W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 72 HOURS FORECAST POSITION AT T+ 72 : 19.8N 106.9W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 22.08.2021 19.8N 106.9W MODERATE 00UTC 23.08.2021 20.3N 109.4W MODERATE LITTLE CHANGE 12UTC 23.08.2021 21.3N 112.5W MODERATE LITTLE CHANGE 00UTC 24.08.2021 21.4N 115.5W MODERATE WEAKENING SLIGHTLY 12UTC 24.08.2021 21.7N 117.2W WEAK WEAKENING SLIGHTLY 00UTC 25.08.2021 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 102 HOURS FORECAST POSITION AT T+102 : 15.0N 105.5W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 24.08.2021 15.4N 106.8W WEAK WEAKENING SLIGHTLY 12UTC 24.08.2021 16.4N 109.2W WEAK LITTLE CHANGE 00UTC 25.08.2021 17.0N 111.8W MODERATE LITTLE CHANGE 12UTC 25.08.2021 17.4N 113.5W MODERATE LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 120 HOURS FORECAST POSITION AT T+120 : 12.0N 136.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 24.08.2021 12.0N 136.7W WEAK 00UTC 25.08.2021 12.6N 137.4W WEAK LITTLE CHANGE 12UTC 25.08.2021 12.7N 137.6W 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 191600