856 WTNT80 EGRR 161615 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 16.08.2024 HURRICANE ERNESTO ANALYSED POSITION : 29.0N 66.6W ATCF IDENTIFIER : AL052024 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 16.08.2024 29.0N 66.6W STRONG 00UTC 17.08.2024 31.1N 65.4W STRONG LITTLE CHANGE 12UTC 17.08.2024 32.8N 64.7W STRONG LITTLE CHANGE 00UTC 18.08.2024 33.6N 64.0W STRONG WEAKENING SLIGHTLY 12UTC 18.08.2024 35.1N 63.6W STRONG LITTLE CHANGE 00UTC 19.08.2024 37.8N 62.6W STRONG LITTLE CHANGE 12UTC 19.08.2024 41.1N 60.7W STRONG INTENSIFYING SLIGHTLY 00UTC 20.08.2024 44.4N 56.0W STRONG WEAKENING SLIGHTLY 12UTC 20.08.2024 47.5N 48.3W MODERATE WEAKENING RAPIDLY 00UTC 21.08.2024 51.1N 38.2W MODERATE LITTLE CHANGE 12UTC 21.08.2024 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 120 HOURS FORECAST POSITION AT T+120 : 15.4N 138.8W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 21.08.2024 15.4N 138.8W WEAK 00UTC 22.08.2024 15.8N 141.6W WEAK LITTLE CHANGE 12UTC 22.08.2024 16.6N 144.3W WEAK LITTLE CHANGE 00UTC 23.08.2024 17.5N 147.0W WEAK LITTLE CHANGE 12UTC 23.08.2024 18.1N 150.2W 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 161615