750 WTNT80 EGRR 090406 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 09.09.2018 TROPICAL DEPRESSION 94L ANALYSED POSITION : 31.9N 67.0W ATCF IDENTIFIER : AL942018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 09.09.2018 31.9N 67.0W WEAK 12UTC 09.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL STORM NORMAN ANALYSED POSITION : 27.5N 154.2W ATCF IDENTIFIER : EP162018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 09.09.2018 27.5N 154.2W WEAK 12UTC 09.09.2018 28.9N 154.2W WEAK LITTLE CHANGE 00UTC 10.09.2018 30.0N 153.5W WEAK LITTLE CHANGE 12UTC 10.09.2018 31.7N 153.0W WEAK LITTLE CHANGE 00UTC 11.09.2018 33.1N 153.3W WEAK LITTLE CHANGE 12UTC 11.09.2018 33.7N 154.9W WEAK WEAKENING SLIGHTLY 00UTC 12.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 18E ANALYSED POSITION : 16.4N 116.7W ATCF IDENTIFIER : EP182018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 09.09.2018 16.4N 116.7W WEAK 12UTC 09.09.2018 17.5N 117.9W MODERATE LITTLE CHANGE 00UTC 10.09.2018 19.2N 119.1W MODERATE LITTLE CHANGE 12UTC 10.09.2018 20.3N 120.7W MODERATE LITTLE CHANGE 00UTC 11.09.2018 21.5N 122.6W MODERATE LITTLE CHANGE 12UTC 11.09.2018 22.4N 125.7W WEAK LITTLE CHANGE 00UTC 12.09.2018 22.7N 128.3W WEAK LITTLE CHANGE 12UTC 12.09.2018 23.0N 131.0W WEAK LITTLE CHANGE 00UTC 13.09.2018 22.8N 133.0W WEAK LITTLE CHANGE 12UTC 13.09.2018 22.8N 133.9W WEAK LITTLE CHANGE 00UTC 14.09.2018 23.4N 134.3W WEAK LITTLE CHANGE 12UTC 14.09.2018 23.1N 135.0W WEAK LITTLE CHANGE 00UTC 15.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL STORM FLORENCE ANALYSED POSITION : 24.3N 54.8W ATCF IDENTIFIER : AL062018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 09.09.2018 24.3N 54.8W MODERATE 12UTC 09.09.2018 24.4N 55.9W MODERATE LITTLE CHANGE 00UTC 10.09.2018 24.2N 57.2W MODERATE LITTLE CHANGE 12UTC 10.09.2018 24.7N 58.8W MODERATE LITTLE CHANGE 00UTC 11.09.2018 25.3N 60.9W MODERATE INTENSIFYING SLIGHTLY 12UTC 11.09.2018 26.1N 63.8W STRONG INTENSIFYING SLIGHTLY 00UTC 12.09.2018 27.3N 67.0W STRONG INTENSIFYING SLIGHTLY 12UTC 12.09.2018 28.7N 70.0W INTENSE INTENSIFYING SLIGHTLY 00UTC 13.09.2018 30.2N 72.2W INTENSE LITTLE CHANGE 12UTC 13.09.2018 31.9N 73.6W INTENSE INTENSIFYING SLIGHTLY 00UTC 14.09.2018 33.2N 74.7W INTENSE INTENSIFYING SLIGHTLY 12UTC 14.09.2018 33.6N 75.2W INTENSE INTENSIFYING RAPIDLY 00UTC 15.09.2018 33.5N 75.0W INTENSE LITTLE CHANGE TROPICAL STORM HELENE ANALYSED POSITION : 13.0N 22.1W ATCF IDENTIFIER : AL082018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 09.09.2018 13.0N 22.1W MODERATE 12UTC 09.09.2018 13.3N 24.6W MODERATE LITTLE CHANGE 00UTC 10.09.2018 13.9N 27.4W MODERATE LITTLE CHANGE 12UTC 10.09.2018 14.5N 30.4W STRONG INTENSIFYING SLIGHTLY 00UTC 11.09.2018 15.3N 33.3W STRONG LITTLE CHANGE 12UTC 11.09.2018 16.4N 35.2W STRONG INTENSIFYING SLIGHTLY 00UTC 12.09.2018 17.7N 36.1W STRONG INTENSIFYING SLIGHTLY 12UTC 12.09.2018 19.8N 37.0W STRONG LITTLE CHANGE 00UTC 13.09.2018 22.3N 37.5W STRONG WEAKENING SLIGHTLY 12UTC 13.09.2018 25.2N 38.4W MODERATE WEAKENING RAPIDLY 00UTC 14.09.2018 28.1N 38.6W MODERATE WEAKENING SLIGHTLY 12UTC 14.09.2018 31.3N 39.2W STRONG INTENSIFYING RAPIDLY 00UTC 15.09.2018 33.2N 38.3W STRONG INTENSIFYING SLIGHTLY TROPICAL STORM ISAAC ANALYSED POSITION : 14.4N 37.1W ATCF IDENTIFIER : AL092018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 09.09.2018 14.4N 37.1W WEAK 12UTC 09.09.2018 14.4N 38.7W WEAK LITTLE CHANGE 00UTC 10.09.2018 14.2N 40.8W MODERATE LITTLE CHANGE 12UTC 10.09.2018 14.2N 43.2W MODERATE LITTLE CHANGE 00UTC 11.09.2018 14.0N 45.8W MODERATE LITTLE CHANGE 12UTC 11.09.2018 13.7N 48.4W MODERATE LITTLE CHANGE 00UTC 12.09.2018 13.6N 50.1W MODERATE LITTLE CHANGE 12UTC 12.09.2018 13.7N 51.8W MODERATE INTENSIFYING SLIGHTLY 00UTC 13.09.2018 14.4N 52.9W MODERATE LITTLE CHANGE 12UTC 13.09.2018 15.4N 54.5W MODERATE LITTLE CHANGE 00UTC 14.09.2018 16.6N 55.8W STRONG LITTLE CHANGE 12UTC 14.09.2018 17.9N 57.4W STRONG LITTLE CHANGE 00UTC 15.09.2018 19.3N 58.5W STRONG LITTLE CHANGE HURRICANE OLIVIA ANALYSED POSITION : 21.9N 140.2W ATCF IDENTIFIER : EP172018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 09.09.2018 21.9N 140.2W MODERATE 12UTC 09.09.2018 21.9N 143.1W MODERATE WEAKENING SLIGHTLY 00UTC 10.09.2018 21.9N 145.5W MODERATE LITTLE CHANGE 12UTC 10.09.2018 21.9N 147.4W MODERATE LITTLE CHANGE 00UTC 11.09.2018 21.7N 149.1W MODERATE LITTLE CHANGE 12UTC 11.09.2018 20.8N 151.0W MODERATE WEAKENING SLIGHTLY 00UTC 12.09.2018 20.0N 153.3W WEAK LITTLE CHANGE 12UTC 12.09.2018 19.7N 154.8W WEAK LITTLE CHANGE 00UTC 13.09.2018 18.7N 157.5W WEAK LITTLE CHANGE 12UTC 13.09.2018 18.8N 160.3W WEAK LITTLE CHANGE 00UTC 14.09.2018 18.9N 162.7W WEAK LITTLE CHANGE 12UTC 14.09.2018 19.4N 164.8W WEAK LITTLE CHANGE 00UTC 15.09.2018 20.5N 167.3W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 78 HOURS FORECAST POSITION AT T+ 78 : 13.8N 20.6W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 13.4N 21.1W WEAK WEAKENING SLIGHTLY 00UTC 13.09.2018 14.0N 22.9W WEAK LITTLE CHANGE 12UTC 13.09.2018 14.2N 24.1W WEAK LITTLE CHANGE 00UTC 14.09.2018 14.6N 25.8W WEAK LITTLE CHANGE 12UTC 14.09.2018 14.9N 27.2W WEAK LITTLE CHANGE 00UTC 15.09.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 84 HOURS FORECAST POSITION AT T+ 84 : 36.1N 42.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 36.1N 42.0W WEAK 00UTC 13.09.2018 34.4N 44.5W WEAK LITTLE CHANGE 12UTC 13.09.2018 33.3N 46.0W WEAK LITTLE CHANGE 00UTC 14.09.2018 32.2N 47.9W WEAK LITTLE CHANGE 12UTC 14.09.2018 30.3N 48.7W WEAK LITTLE CHANGE 00UTC 15.09.2018 29.7N 47.8W 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 090406