636 WTNT80 EGRR 030358 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 03.10.2018 TROPICAL STORM LESLIE ANALYSED POSITION : 29.9N 56.5W ATCF IDENTIFIER : AL132018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 03.10.2018 29.9N 56.5W MODERATE 12UTC 03.10.2018 29.7N 57.2W MODERATE INTENSIFYING SLIGHTLY 00UTC 04.10.2018 29.8N 57.6W STRONG INTENSIFYING SLIGHTLY 12UTC 04.10.2018 31.8N 57.1W STRONG INTENSIFYING SLIGHTLY 00UTC 05.10.2018 34.4N 57.4W INTENSE INTENSIFYING SLIGHTLY 12UTC 05.10.2018 36.5N 58.1W STRONG WEAKENING SLIGHTLY 00UTC 06.10.2018 37.5N 58.2W STRONG LITTLE CHANGE 12UTC 06.10.2018 37.8N 58.1W INTENSE LITTLE CHANGE 00UTC 07.10.2018 37.6N 56.7W STRONG LITTLE CHANGE 12UTC 07.10.2018 37.6N 55.1W INTENSE LITTLE CHANGE 00UTC 08.10.2018 37.4N 51.9W STRONG LITTLE CHANGE 12UTC 08.10.2018 36.2N 49.5W STRONG WEAKENING SLIGHTLY 00UTC 09.10.2018 33.8N 48.3W STRONG WEAKENING SLIGHTLY HURRICANE SERGIO ANALYSED POSITION : 11.3N 115.6W ATCF IDENTIFIER : EP212018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 03.10.2018 11.3N 115.6W INTENSE 12UTC 03.10.2018 12.2N 117.2W INTENSE LITTLE CHANGE 00UTC 04.10.2018 13.3N 118.6W STRONG WEAKENING SLIGHTLY 12UTC 04.10.2018 14.5N 120.0W STRONG LITTLE CHANGE 00UTC 05.10.2018 15.4N 121.6W INTENSE INTENSIFYING SLIGHTLY 12UTC 05.10.2018 15.9N 122.9W STRONG LITTLE CHANGE 00UTC 06.10.2018 16.1N 124.0W INTENSE INTENSIFYING SLIGHTLY 12UTC 06.10.2018 16.2N 125.4W INTENSE INTENSIFYING SLIGHTLY 00UTC 07.10.2018 16.2N 126.8W INTENSE WEAKENING SLIGHTLY 12UTC 07.10.2018 16.3N 128.5W INTENSE WEAKENING SLIGHTLY 00UTC 08.10.2018 16.6N 130.1W STRONG WEAKENING SLIGHTLY 12UTC 08.10.2018 17.1N 131.5W STRONG LITTLE CHANGE 00UTC 09.10.2018 18.1N 132.6W STRONG LITTLE CHANGE HURRICANE WALAKA ANALYSED POSITION : 16.0N 170.4W ATCF IDENTIFIER : CP012018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 03.10.2018 16.0N 170.4W STRONG 12UTC 03.10.2018 18.5N 169.9W STRONG INTENSIFYING SLIGHTLY 00UTC 04.10.2018 21.9N 168.2W INTENSE INTENSIFYING RAPIDLY 12UTC 04.10.2018 25.8N 166.4W INTENSE WEAKENING SLIGHTLY 00UTC 05.10.2018 29.4N 167.6W STRONG WEAKENING SLIGHTLY 12UTC 05.10.2018 30.5N 168.8W STRONG WEAKENING SLIGHTLY 00UTC 06.10.2018 30.8N 168.2W MODERATE WEAKENING SLIGHTLY 12UTC 06.10.2018 32.0N 166.2W MODERATE WEAKENING SLIGHTLY 00UTC 07.10.2018 36.1N 163.6W MODERATE LITTLE CHANGE 12UTC 07.10.2018 42.5N 159.5W MODERATE LITTLE CHANGE 00UTC 08.10.2018 51.4N 154.2W MODERATE LITTLE CHANGE 12UTC 08.10.2018 54.7N 149.3W MODERATE LITTLE CHANGE 00UTC 09.10.2018 53.8N 141.6W WEAK WEAKENING SLIGHTLY NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 24 HOURS FORECAST POSITION AT T+ 24 : 30.5N 38.4W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 04.10.2018 30.5N 38.4W WEAK 12UTC 04.10.2018 29.5N 37.0W WEAK LITTLE CHANGE 00UTC 05.10.2018 28.5N 34.9W WEAK LITTLE CHANGE 12UTC 05.10.2018 27.8N 33.4W WEAK LITTLE CHANGE 00UTC 06.10.2018 26.2N 32.9W WEAK LITTLE CHANGE 12UTC 06.10.2018 25.2N 31.6W WEAK LITTLE CHANGE 00UTC 07.10.2018 24.3N 30.7W WEAK LITTLE CHANGE 12UTC 07.10.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 72 HOURS FORECAST POSITION AT T+ 72 : 12.7N 90.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 06.10.2018 12.7N 90.7W WEAK 12UTC 06.10.2018 13.0N 92.6W MODERATE INTENSIFYING SLIGHTLY 00UTC 07.10.2018 14.0N 94.5W MODERATE INTENSIFYING SLIGHTLY 12UTC 07.10.2018 14.3N 95.6W MODERATE INTENSIFYING SLIGHTLY 00UTC 08.10.2018 15.0N 96.3W STRONG INTENSIFYING RAPIDLY 12UTC 08.10.2018 15.9N 97.1W WEAK WEAKENING RAPIDLY 00UTC 09.10.2018 BELOW TROPICAL STORM STRENGTH 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 030358