316 WTNT80 EGRR 071558 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 07.09.2020 TROPICAL DEPRESSION JULIO ANALYSED POSITION : 16.8N 113.5W ATCF IDENTIFIER : EP152020 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 07.09.2020 16.8N 113.5W WEAK 00UTC 08.09.2020 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 17L ANALYSED POSITION : 16.7N 41.9W ATCF IDENTIFIER : AL172020 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 07.09.2020 16.7N 41.9W WEAK 00UTC 08.09.2020 17.4N 42.4W WEAK LITTLE CHANGE 12UTC 08.09.2020 17.8N 42.7W WEAK LITTLE CHANGE 00UTC 09.09.2020 18.9N 43.4W MODERATE LITTLE CHANGE 12UTC 09.09.2020 19.5N 45.2W WEAK LITTLE CHANGE 00UTC 10.09.2020 19.9N 47.1W WEAK LITTLE CHANGE 12UTC 10.09.2020 20.0N 48.6W WEAK LITTLE CHANGE 00UTC 11.09.2020 19.7N 49.6W WEAK LITTLE CHANGE 12UTC 11.09.2020 20.0N 50.2W WEAK LITTLE CHANGE 00UTC 12.09.2020 20.5N 50.0W WEAK LITTLE CHANGE 12UTC 12.09.2020 21.9N 50.3W WEAK LITTLE CHANGE 00UTC 13.09.2020 24.4N 49.7W WEAK LITTLE CHANGE 12UTC 13.09.2020 25.6N 49.9W WEAK LITTLE CHANGE TROPICAL DEPRESSION 18L ANALYSED POSITION : 15.9N 20.8W ATCF IDENTIFIER : AL182020 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 07.09.2020 15.9N 20.8W WEAK 00UTC 08.09.2020 16.2N 23.2W WEAK LITTLE CHANGE 12UTC 08.09.2020 16.6N 25.3W WEAK LITTLE CHANGE 00UTC 09.09.2020 17.2N 27.9W WEAK LITTLE CHANGE 12UTC 09.09.2020 17.9N 31.1W WEAK LITTLE CHANGE 00UTC 10.09.2020 18.5N 33.6W WEAK LITTLE CHANGE 12UTC 10.09.2020 19.2N 35.9W WEAK LITTLE CHANGE 00UTC 11.09.2020 20.5N 37.3W WEAK LITTLE CHANGE 12UTC 11.09.2020 22.5N 39.1W MODERATE LITTLE CHANGE 00UTC 12.09.2020 25.3N 40.3W MODERATE INTENSIFYING SLIGHTLY 12UTC 12.09.2020 27.8N 41.2W MODERATE LITTLE CHANGE 00UTC 13.09.2020 30.0N 40.9W MODERATE LITTLE CHANGE 12UTC 13.09.2020 31.8N 39.8W MODERATE LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 66 HOURS FORECAST POSITION AT T+ 66 : 11.7N 15.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 10.09.2020 11.3N 16.5W WEAK LITTLE CHANGE 00UTC 11.09.2020 11.6N 19.3W MODERATE INTENSIFYING SLIGHTLY 12UTC 11.09.2020 12.0N 21.8W MODERATE INTENSIFYING SLIGHTLY 00UTC 12.09.2020 13.0N 24.3W MODERATE LITTLE CHANGE 12UTC 12.09.2020 14.2N 27.4W MODERATE LITTLE CHANGE 00UTC 13.09.2020 15.3N 30.5W MODERATE LITTLE CHANGE 12UTC 13.09.2020 16.4N 33.6W MODERATE LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 114 HOURS FORECAST POSITION AT T+114 : 16.9N 121.9W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2020 16.9N 122.8W WEAK WEAKENING RAPIDLY 00UTC 13.09.2020 17.2N 124.2W WEAK LITTLE CHANGE 12UTC 13.09.2020 17.3N 125.9W 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 071558