138 WTNT80 EGRR 180402 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 18.08.2021 TROPICAL DEPRESSION FRED ANALYSED POSITION : 36.4N 83.2W ATCF IDENTIFIER : AL062021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 18.08.2021 36.4N 83.2W WEAK 12UTC 18.08.2021 39.2N 81.1W WEAK LITTLE CHANGE 00UTC 19.08.2021 41.4N 79.0W WEAK LITTLE CHANGE 12UTC 19.08.2021 42.8N 75.4W WEAK LITTLE CHANGE 00UTC 20.08.2021 42.8N 72.1W WEAK LITTLE CHANGE 12UTC 20.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM HENRI ANALYSED POSITION : 30.2N 64.7W ATCF IDENTIFIER : AL082021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 18.08.2021 30.2N 64.7W WEAK 12UTC 18.08.2021 29.8N 66.1W WEAK LITTLE CHANGE 00UTC 19.08.2021 29.6N 68.0W WEAK INTENSIFYING SLIGHTLY 12UTC 19.08.2021 29.4N 70.3W MODERATE INTENSIFYING SLIGHTLY 00UTC 20.08.2021 29.5N 72.2W MODERATE INTENSIFYING SLIGHTLY 12UTC 20.08.2021 29.9N 73.8W MODERATE INTENSIFYING SLIGHTLY 00UTC 21.08.2021 30.8N 74.5W STRONG INTENSIFYING SLIGHTLY 12UTC 21.08.2021 32.7N 74.1W STRONG LITTLE CHANGE 00UTC 22.08.2021 35.8N 72.3W STRONG INTENSIFYING RAPIDLY 12UTC 22.08.2021 39.5N 70.6W INTENSE INTENSIFYING SLIGHTLY 00UTC 23.08.2021 41.3N 70.3W STRONG WEAKENING RAPIDLY 12UTC 23.08.2021 41.6N 69.8W MODERATE WEAKENING RAPIDLY 00UTC 24.08.2021 41.7N 68.5W MODERATE WEAKENING SLIGHTLY HURRICANE LINDA ANALYSED POSITION : 17.8N 129.0W ATCF IDENTIFIER : EP122021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 18.08.2021 17.8N 129.0W STRONG 12UTC 18.08.2021 18.2N 131.0W STRONG LITTLE CHANGE 00UTC 19.08.2021 19.2N 133.7W STRONG WEAKENING SLIGHTLY 12UTC 19.08.2021 20.0N 136.9W MODERATE WEAKENING RAPIDLY 00UTC 20.08.2021 20.6N 140.1W MODERATE WEAKENING SLIGHTLY 12UTC 20.08.2021 20.9N 143.2W WEAK LITTLE CHANGE 00UTC 21.08.2021 21.2N 145.8W WEAK LITTLE CHANGE 12UTC 21.08.2021 21.5N 148.4W WEAK LITTLE CHANGE 00UTC 22.08.2021 21.8N 150.5W WEAK LITTLE CHANGE 12UTC 22.08.2021 22.3N 152.6W WEAK LITTLE CHANGE 00UTC 23.08.2021 22.7N 154.5W WEAK LITTLE CHANGE 12UTC 23.08.2021 23.3N 157.0W WEAK LITTLE CHANGE 00UTC 24.08.2021 23.6N 159.4W WEAK LITTLE CHANGE TROPICAL STORM GRACE ANALYSED POSITION : 18.4N 78.7W ATCF IDENTIFIER : AL072021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 18.08.2021 18.4N 78.7W WEAK 12UTC 18.08.2021 19.0N 81.8W WEAK LITTLE CHANGE 00UTC 19.08.2021 19.4N 84.7W MODERATE INTENSIFYING SLIGHTLY 12UTC 19.08.2021 19.8N 87.4W MODERATE INTENSIFYING SLIGHTLY 00UTC 20.08.2021 20.2N 90.7W MODERATE LITTLE CHANGE 12UTC 20.08.2021 20.0N 93.2W MODERATE INTENSIFYING SLIGHTLY 00UTC 21.08.2021 19.7N 95.4W STRONG INTENSIFYING SLIGHTLY 12UTC 21.08.2021 18.7N 98.0W WEAK WEAKENING RAPIDLY 00UTC 22.08.2021 20.1N 105.0W MODERATE LITTLE CHANGE 12UTC 22.08.2021 18.8N 106.3W MODERATE INTENSIFYING SLIGHTLY 00UTC 23.08.2021 18.6N 108.5W MODERATE LITTLE CHANGE 12UTC 23.08.2021 19.9N 111.8W MODERATE LITTLE CHANGE 00UTC 24.08.2021 20.3N 115.5W MODERATE WEAKENING SLIGHTLY NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 108 HOURS FORECAST POSITION AT T+108 : 18.8N 106.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 22.08.2021 18.8N 106.3W MODERATE 00UTC 23.08.2021 18.6N 108.5W MODERATE LITTLE CHANGE 12UTC 23.08.2021 19.9N 111.8W MODERATE LITTLE CHANGE 00UTC 24.08.2021 20.3N 115.5W MODERATE WEAKENING SLIGHTLY 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 180402