503 WTNT80 EGRR 291605 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 29.08.2018 TROPICAL DEPRESSION LANE ANALYSED POSITION : 20.6N 168.3W ATCF IDENTIFIER : EP142018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 29.08.2018 20.6N 168.3W WEAK 00UTC 30.08.2018 BELOW TROPICAL STORM STRENGTH TROPICAL STORM MIRIAM ANALYSED POSITION : 14.1N 139.2W ATCF IDENTIFIER : EP152018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 29.08.2018 14.1N 139.2W MODERATE 00UTC 30.08.2018 13.9N 140.9W MODERATE LITTLE CHANGE 12UTC 30.08.2018 14.2N 141.8W MODERATE INTENSIFYING SLIGHTLY 00UTC 31.08.2018 15.6N 142.0W MODERATE LITTLE CHANGE 12UTC 31.08.2018 17.4N 141.5W MODERATE LITTLE CHANGE 00UTC 01.09.2018 18.8N 141.5W MODERATE WEAKENING SLIGHTLY 12UTC 01.09.2018 19.8N 142.2W MODERATE WEAKENING SLIGHTLY 00UTC 02.09.2018 21.1N 143.5W WEAK LITTLE CHANGE 12UTC 02.09.2018 22.7N 145.7W WEAK LITTLE CHANGE 00UTC 03.09.2018 23.9N 147.5W WEAK LITTLE CHANGE 12UTC 03.09.2018 25.0N 150.0W WEAK LITTLE CHANGE 00UTC 04.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL STORM NORMAN ANALYSED POSITION : 17.4N 115.1W ATCF IDENTIFIER : EP162018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 29.08.2018 17.4N 115.1W MODERATE 00UTC 30.08.2018 17.8N 116.8W MODERATE INTENSIFYING SLIGHTLY 12UTC 30.08.2018 18.1N 118.5W STRONG LITTLE CHANGE 00UTC 31.08.2018 18.1N 120.3W STRONG LITTLE CHANGE 12UTC 31.08.2018 17.8N 122.1W STRONG LITTLE CHANGE 00UTC 01.09.2018 17.4N 124.5W STRONG LITTLE CHANGE 12UTC 01.09.2018 16.7N 127.0W STRONG LITTLE CHANGE 00UTC 02.09.2018 15.8N 129.6W STRONG LITTLE CHANGE 12UTC 02.09.2018 15.0N 131.9W STRONG LITTLE CHANGE 00UTC 03.09.2018 15.0N 133.3W STRONG LITTLE CHANGE 12UTC 03.09.2018 16.0N 134.7W STRONG LITTLE CHANGE 00UTC 04.09.2018 17.3N 136.6W STRONG LITTLE CHANGE 12UTC 04.09.2018 18.1N 138.8W STRONG LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 12 HOURS FORECAST POSITION AT T+ 12 : 26.7N 170.4W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 30.08.2018 26.7N 170.4W WEAK 12UTC 30.08.2018 30.3N 173.6W WEAK LITTLE CHANGE 00UTC 31.08.2018 31.5N 177.0W WEAK INTENSIFYING SLIGHTLY 12UTC 31.08.2018 32.3N 178.4W WEAK LITTLE CHANGE 00UTC 01.09.2018 33.3N 178.6W WEAK LITTLE CHANGE 12UTC 01.09.2018 34.4N 178.6W MODERATE LITTLE CHANGE 00UTC 02.09.2018 35.5N 179.5W MODERATE LITTLE CHANGE 12UTC 02.09.2018 36.2N 178.8E WEAK WEAKENING SLIGHTLY 00UTC 03.09.2018 37.0N 176.7E WEAK WEAKENING SLIGHTLY 12UTC 03.09.2018 38.1N 175.5E WEAK LITTLE CHANGE 00UTC 04.09.2018 39.4N 175.3E WEAK LITTLE CHANGE 12UTC 04.09.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 54 HOURS FORECAST POSITION AT T+ 54 : 13.4N 23.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 01.09.2018 15.0N 24.3W WEAK WEAKENING SLIGHTLY 12UTC 01.09.2018 15.6N 28.3W WEAK LITTLE CHANGE 00UTC 02.09.2018 16.0N 30.7W WEAK LITTLE CHANGE 12UTC 02.09.2018 17.3N 31.9W WEAK LITTLE CHANGE 00UTC 03.09.2018 18.8N 33.5W WEAK LITTLE CHANGE 12UTC 03.09.2018 19.7N 35.4W WEAK LITTLE CHANGE 00UTC 04.09.2018 19.9N 37.0W WEAK LITTLE CHANGE 12UTC 04.09.2018 20.5N 38.7W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 96 HOURS FORECAST POSITION AT T+ 96 : 16.8N 118.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 02.09.2018 16.8N 118.3W WEAK 00UTC 03.09.2018 17.2N 118.6W WEAK LITTLE CHANGE 12UTC 03.09.2018 17.6N 118.1W WEAK LITTLE CHANGE 00UTC 04.09.2018 17.4N 118.8W WEAK LITTLE CHANGE 12UTC 04.09.2018 17.0N 119.8W 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 291604