634 WTNT80 EGRR 130403 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 13.09.2018 TROPICAL DEPRESSION 93E ANALYSED POSITION : 19.6N 107.2W ATCF IDENTIFIER : EP932018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2018 19.6N 107.2W WEAK 12UTC 13.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 95L ANALYSED POSITION : 22.7N 93.1W ATCF IDENTIFIER : AL952018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2018 22.7N 93.1W WEAK 12UTC 13.09.2018 BELOW TROPICAL STORM STRENGTH HURRICANE FLORENCE ANALYSED POSITION : 31.5N 73.2W ATCF IDENTIFIER : AL062018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2018 31.5N 73.2W INTENSE 12UTC 13.09.2018 33.1N 75.7W INTENSE LITTLE CHANGE 00UTC 14.09.2018 33.7N 77.4W INTENSE LITTLE CHANGE 12UTC 14.09.2018 33.9N 79.0W INTENSE WEAKENING RAPIDLY 00UTC 15.09.2018 33.7N 79.9W STRONG WEAKENING RAPIDLY 12UTC 15.09.2018 33.7N 80.4W MODERATE WEAKENING SLIGHTLY 00UTC 16.09.2018 34.1N 81.3W MODERATE LITTLE CHANGE 12UTC 16.09.2018 34.9N 83.0W MODERATE WEAKENING SLIGHTLY 00UTC 17.09.2018 36.5N 85.3W WEAK WEAKENING SLIGHTLY 12UTC 17.09.2018 38.5N 84.2W WEAK LITTLE CHANGE 00UTC 18.09.2018 41.6N 82.0W WEAK LITTLE CHANGE 12UTC 18.09.2018 43.1N 76.4W WEAK LITTLE CHANGE 00UTC 19.09.2018 44.1N 66.7W MODERATE LITTLE CHANGE HURRICANE HELENE ANALYSED POSITION : 21.7N 37.0W ATCF IDENTIFIER : AL082018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2018 21.7N 37.0W STRONG 12UTC 13.09.2018 24.4N 37.2W STRONG WEAKENING SLIGHTLY 00UTC 14.09.2018 27.3N 36.8W MODERATE WEAKENING SLIGHTLY 12UTC 14.09.2018 30.9N 36.3W STRONG INTENSIFYING SLIGHTLY 00UTC 15.09.2018 34.0N 34.7W MODERATE LITTLE CHANGE 12UTC 15.09.2018 37.0N 31.8W STRONG INTENSIFYING RAPIDLY 00UTC 16.09.2018 38.9N 27.4W STRONG INTENSIFYING SLIGHTLY 12UTC 16.09.2018 39.7N 22.7W STRONG LITTLE CHANGE 00UTC 17.09.2018 40.5N 19.9W STRONG WEAKENING SLIGHTLY 12UTC 17.09.2018 40.8N 17.5W STRONG WEAKENING SLIGHTLY 00UTC 18.09.2018 43.0N 15.0W STRONG LITTLE CHANGE 12UTC 18.09.2018 47.2N 11.2W STRONG LITTLE CHANGE 00UTC 19.09.2018 53.8N 7.3W STRONG LITTLE CHANGE TROPICAL STORM ISAAC ANALYSED POSITION : 15.5N 57.0W ATCF IDENTIFIER : AL092018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2018 15.5N 57.0W WEAK 12UTC 13.09.2018 15.5N 60.6W WEAK LITTLE CHANGE 00UTC 14.09.2018 15.7N 63.5W WEAK LITTLE CHANGE 12UTC 14.09.2018 15.5N 66.5W WEAK LITTLE CHANGE 00UTC 15.09.2018 15.7N 69.2W WEAK LITTLE CHANGE 12UTC 15.09.2018 15.3N 72.2W WEAK LITTLE CHANGE 00UTC 16.09.2018 16.0N 74.5W WEAK LITTLE CHANGE 12UTC 16.09.2018 16.3N 76.9W WEAK LITTLE CHANGE 00UTC 17.09.2018 17.2N 79.3W WEAK LITTLE CHANGE 12UTC 17.09.2018 17.5N 82.1W WEAK LITTLE CHANGE 00UTC 18.09.2018 17.7N 84.7W WEAK LITTLE CHANGE 12UTC 18.09.2018 17.8N 87.2W WEAK LITTLE CHANGE 00UTC 19.09.2018 18.1N 89.4W WEAK LITTLE CHANGE TROPICAL STORM JOYCE ANALYSED POSITION : 34.7N 42.5W ATCF IDENTIFIER : AL102018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2018 34.7N 42.5W WEAK 12UTC 13.09.2018 33.8N 43.4W WEAK LITTLE CHANGE 00UTC 14.09.2018 33.0N 44.3W WEAK LITTLE CHANGE 12UTC 14.09.2018 31.7N 44.6W WEAK LITTLE CHANGE 00UTC 15.09.2018 31.0N 44.6W WEAK LITTLE CHANGE 12UTC 15.09.2018 31.8N 42.6W WEAK LITTLE CHANGE 00UTC 16.09.2018 33.6N 41.5W WEAK LITTLE CHANGE 12UTC 16.09.2018 35.5N 39.2W WEAK LITTLE CHANGE 00UTC 17.09.2018 36.9N 35.0W WEAK LITTLE CHANGE 12UTC 17.09.2018 37.2N 30.7W WEAK LITTLE CHANGE 00UTC 18.09.2018 36.2N 25.6W WEAK LITTLE CHANGE 12UTC 18.09.2018 35.8N 21.8W WEAK LITTLE CHANGE 00UTC 19.09.2018 35.3N 19.2W WEAK LITTLE CHANGE TROPICAL STORM OLIVIA ANALYSED POSITION : 20.2N 158.4W ATCF IDENTIFIER : EP172018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2018 20.2N 158.4W WEAK 12UTC 13.09.2018 19.5N 161.1W WEAK LITTLE CHANGE 00UTC 14.09.2018 19.3N 163.6W WEAK LITTLE CHANGE 12UTC 14.09.2018 19.7N 165.9W WEAK LITTLE CHANGE 00UTC 15.09.2018 20.2N 168.5W WEAK LITTLE CHANGE 12UTC 15.09.2018 21.4N 170.8W WEAK LITTLE CHANGE 00UTC 16.09.2018 23.1N 173.4W WEAK LITTLE CHANGE 12UTC 16.09.2018 24.2N 176.9W WEAK LITTLE CHANGE 00UTC 17.09.2018 24.2N 180.0E WEAK LITTLE CHANGE 12UTC 17.09.2018 24.0N 177.4E WEAK LITTLE CHANGE 00UTC 18.09.2018 23.6N 175.6E WEAK LITTLE CHANGE 12UTC 18.09.2018 23.4N 173.9E WEAK LITTLE CHANGE 00UTC 19.09.2018 22.8N 171.8E WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 120 HOURS FORECAST POSITION AT T+120 : 16.2N 113.6W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 18.09.2018 16.2N 113.6W WEAK 12UTC 18.09.2018 16.3N 114.9W WEAK LITTLE CHANGE 00UTC 19.09.2018 16.8N 115.7W 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 130403