460 WTNT80 EGRR 121603 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 12.09.2018 TROPICAL DEPRESSION PAUL ANALYSED POSITION : 22.8N 127.7W ATCF IDENTIFIER : EP182018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 22.8N 127.7W WEAK 00UTC 13.09.2018 22.8N 129.4W WEAK LITTLE CHANGE 12UTC 13.09.2018 23.1N 130.8W WEAK LITTLE CHANGE 00UTC 14.09.2018 22.7N 131.5W WEAK LITTLE CHANGE 12UTC 14.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 95L ANALYSED POSITION : 22.1N 92.0W ATCF IDENTIFIER : AL952018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 22.1N 92.0W WEAK 00UTC 13.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL STORM 96L ANALYSED POSITION : 35.5N 41.7W ATCF IDENTIFIER : AL962018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 35.5N 41.7W WEAK 00UTC 13.09.2018 34.5N 42.6W WEAK LITTLE CHANGE 12UTC 13.09.2018 33.7N 43.8W WEAK LITTLE CHANGE 00UTC 14.09.2018 33.1N 43.8W WEAK LITTLE CHANGE 12UTC 14.09.2018 32.7N 43.9W WEAK LITTLE CHANGE 00UTC 15.09.2018 32.5N 42.9W WEAK LITTLE CHANGE 12UTC 15.09.2018 33.1N 41.3W WEAK LITTLE CHANGE 00UTC 16.09.2018 34.2N 39.1W WEAK WEAKENING SLIGHTLY 12UTC 16.09.2018 35.4N 35.8W WEAK LITTLE CHANGE 00UTC 17.09.2018 BELOW TROPICAL STORM STRENGTH HURRICANE FLORENCE ANALYSED POSITION : 29.4N 70.7W ATCF IDENTIFIER : AL062018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 29.4N 70.7W INTENSE 00UTC 13.09.2018 31.5N 73.2W INTENSE LITTLE CHANGE 12UTC 13.09.2018 33.1N 75.4W INTENSE INTENSIFYING SLIGHTLY 00UTC 14.09.2018 33.9N 76.9W INTENSE LITTLE CHANGE 12UTC 14.09.2018 34.0N 78.1W INTENSE WEAKENING SLIGHTLY 00UTC 15.09.2018 33.9N 78.7W STRONG WEAKENING RAPIDLY 12UTC 15.09.2018 33.6N 79.3W STRONG WEAKENING SLIGHTLY 00UTC 16.09.2018 33.6N 79.9W STRONG LITTLE CHANGE 12UTC 16.09.2018 33.9N 81.4W MODERATE WEAKENING SLIGHTLY 00UTC 17.09.2018 35.2N 82.8W MODERATE WEAKENING SLIGHTLY 12UTC 17.09.2018 37.7N 84.1W WEAK LITTLE CHANGE 00UTC 18.09.2018 39.2N 82.7W WEAK LITTLE CHANGE 12UTC 18.09.2018 41.0N 78.8W WEAK LITTLE CHANGE HURRICANE HELENE ANALYSED POSITION : 19.5N 36.3W ATCF IDENTIFIER : AL082018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 19.5N 36.3W STRONG 00UTC 13.09.2018 21.8N 36.8W STRONG WEAKENING SLIGHTLY 12UTC 13.09.2018 24.2N 36.8W MODERATE WEAKENING RAPIDLY 00UTC 14.09.2018 26.7N 36.6W MODERATE WEAKENING SLIGHTLY 12UTC 14.09.2018 30.0N 36.1W MODERATE LITTLE CHANGE 00UTC 15.09.2018 33.0N 34.9W MODERATE LITTLE CHANGE 12UTC 15.09.2018 36.6N 32.8W MODERATE LITTLE CHANGE 00UTC 16.09.2018 39.5N 29.8W MODERATE INTENSIFYING SLIGHTLY 12UTC 16.09.2018 41.2N 26.2W STRONG INTENSIFYING RAPIDLY 00UTC 17.09.2018 42.7N 22.8W STRONG LITTLE CHANGE 12UTC 17.09.2018 44.7N 19.0W STRONG LITTLE CHANGE 00UTC 18.09.2018 48.5N 14.4W STRONG LITTLE CHANGE 12UTC 18.09.2018 POST-TROPICAL TROPICAL STORM ISAAC ANALYSED POSITION : 14.2N 54.4W ATCF IDENTIFIER : AL092018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 14.2N 54.4W WEAK 00UTC 13.09.2018 15.0N 57.3W WEAK LITTLE CHANGE 12UTC 13.09.2018 15.2N 60.2W WEAK LITTLE CHANGE 00UTC 14.09.2018 15.3N 63.0W WEAK LITTLE CHANGE 12UTC 14.09.2018 15.5N 66.1W WEAK LITTLE CHANGE 00UTC 15.09.2018 15.7N 68.7W WEAK LITTLE CHANGE 12UTC 15.09.2018 15.5N 71.5W WEAK LITTLE CHANGE 00UTC 16.09.2018 15.8N 73.8W WEAK LITTLE CHANGE 12UTC 16.09.2018 16.4N 75.9W WEAK LITTLE CHANGE 00UTC 17.09.2018 17.1N 78.3W WEAK LITTLE CHANGE 12UTC 17.09.2018 17.7N 80.9W WEAK LITTLE CHANGE 00UTC 18.09.2018 18.1N 83.4W WEAK LITTLE CHANGE 12UTC 18.09.2018 18.1N 86.0W WEAK LITTLE CHANGE TROPICAL STORM OLIVIA ANALYSED POSITION : 21.1N 155.1W ATCF IDENTIFIER : EP172018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2018 21.1N 155.1W WEAK 00UTC 13.09.2018 20.8N 158.5W WEAK LITTLE CHANGE 12UTC 13.09.2018 20.2N 161.3W WEAK LITTLE CHANGE 00UTC 14.09.2018 19.7N 164.0W WEAK LITTLE CHANGE 12UTC 14.09.2018 19.5N 166.1W WEAK LITTLE CHANGE 00UTC 15.09.2018 19.8N 168.7W WEAK LITTLE CHANGE 12UTC 15.09.2018 20.5N 170.8W WEAK LITTLE CHANGE 00UTC 16.09.2018 21.6N 172.9W WEAK LITTLE CHANGE 12UTC 16.09.2018 22.8N 174.6W WEAK LITTLE CHANGE 00UTC 17.09.2018 23.6N 176.3W WEAK LITTLE CHANGE 12UTC 17.09.2018 23.8N 177.7W WEAK LITTLE CHANGE 00UTC 18.09.2018 23.8N 178.1W WEAK LITTLE CHANGE 12UTC 18.09.2018 23.6N 177.7W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 90 HOURS FORECAST POSITION AT T+ 90 : 13.9N 106.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 16.09.2018 13.6N 107.2W WEAK LITTLE CHANGE 00UTC 17.09.2018 15.1N 108.8W WEAK LITTLE CHANGE 12UTC 17.09.2018 15.6N 110.4W MODERATE LITTLE CHANGE 00UTC 18.09.2018 16.6N 111.6W MODERATE LITTLE CHANGE 12UTC 18.09.2018 17.5N 112.9W MODERATE 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 121603