837 WTNT80 EGRR 020359 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 02.10.2018 TROPICAL STORM LESLIE ANALYSED POSITION : 32.5N 54.9W ATCF IDENTIFIER : AL132018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 02.10.2018 32.5N 54.9W MODERATE 12UTC 02.10.2018 31.1N 56.0W MODERATE LITTLE CHANGE 00UTC 03.10.2018 29.8N 56.5W STRONG INTENSIFYING SLIGHTLY 12UTC 03.10.2018 29.7N 57.0W STRONG INTENSIFYING SLIGHTLY 00UTC 04.10.2018 30.2N 57.2W STRONG INTENSIFYING SLIGHTLY 12UTC 04.10.2018 31.6N 57.2W INTENSE INTENSIFYING SLIGHTLY 00UTC 05.10.2018 34.4N 57.0W INTENSE INTENSIFYING SLIGHTLY 12UTC 05.10.2018 36.5N 57.4W INTENSE LITTLE CHANGE 00UTC 06.10.2018 37.0N 57.2W INTENSE LITTLE CHANGE 12UTC 06.10.2018 37.2N 56.5W INTENSE LITTLE CHANGE 00UTC 07.10.2018 37.0N 55.1W INTENSE LITTLE CHANGE 12UTC 07.10.2018 37.2N 53.2W INTENSE WEAKENING SLIGHTLY 00UTC 08.10.2018 36.8N 50.2W STRONG WEAKENING SLIGHTLY TROPICAL STORM ROSA ANALYSED POSITION : 28.4N 115.7W ATCF IDENTIFIER : EP202018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 02.10.2018 28.4N 115.7W WEAK 12UTC 02.10.2018 31.4N 114.1W WEAK WEAKENING SLIGHTLY 00UTC 03.10.2018 BELOW TROPICAL STORM STRENGTH TROPICAL STORM SERGIO ANALYSED POSITION : 10.6N 111.8W ATCF IDENTIFIER : EP212018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 02.10.2018 10.6N 111.8W STRONG 12UTC 02.10.2018 10.7N 114.0W STRONG INTENSIFYING SLIGHTLY 00UTC 03.10.2018 11.3N 116.2W STRONG INTENSIFYING SLIGHTLY 12UTC 03.10.2018 12.1N 118.1W STRONG LITTLE CHANGE 00UTC 04.10.2018 13.3N 119.5W STRONG LITTLE CHANGE 12UTC 04.10.2018 14.5N 121.4W STRONG LITTLE CHANGE 00UTC 05.10.2018 15.3N 123.0W STRONG LITTLE CHANGE 12UTC 05.10.2018 16.1N 124.5W STRONG LITTLE CHANGE 00UTC 06.10.2018 16.8N 126.1W INTENSE INTENSIFYING RAPIDLY 12UTC 06.10.2018 17.4N 128.1W INTENSE WEAKENING SLIGHTLY 00UTC 07.10.2018 17.7N 129.9W STRONG WEAKENING SLIGHTLY 12UTC 07.10.2018 18.0N 131.7W STRONG WEAKENING SLIGHTLY 00UTC 08.10.2018 18.7N 133.0W MODERATE WEAKENING SLIGHTLY HURRICANE WALAKA ANALYSED POSITION : 12.8N 169.7W ATCF IDENTIFIER : CP012018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 02.10.2018 12.8N 169.7W STRONG 12UTC 02.10.2018 13.9N 170.1W STRONG LITTLE CHANGE 00UTC 03.10.2018 15.8N 170.2W STRONG INTENSIFYING SLIGHTLY 12UTC 03.10.2018 18.4N 169.7W INTENSE INTENSIFYING RAPIDLY 00UTC 04.10.2018 21.3N 168.3W INTENSE INTENSIFYING RAPIDLY 12UTC 04.10.2018 24.5N 166.3W INTENSE LITTLE CHANGE 00UTC 05.10.2018 28.0N 167.3W STRONG WEAKENING RAPIDLY 12UTC 05.10.2018 28.2N 169.2W STRONG WEAKENING SLIGHTLY 00UTC 06.10.2018 28.3N 168.5W STRONG WEAKENING SLIGHTLY 12UTC 06.10.2018 28.8N 167.4W MODERATE WEAKENING SLIGHTLY 00UTC 07.10.2018 29.9N 165.0W MODERATE WEAKENING SLIGHTLY 12UTC 07.10.2018 32.5N 162.9W MODERATE LITTLE CHANGE 00UTC 08.10.2018 36.6N 160.6W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 108 HOURS FORECAST POSITION AT T+108 : 13.6N 93.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 06.10.2018 13.6N 93.3W WEAK 00UTC 07.10.2018 14.3N 95.2W MODERATE INTENSIFYING SLIGHTLY 12UTC 07.10.2018 14.7N 96.1W MODERATE INTENSIFYING SLIGHTLY 00UTC 08.10.2018 16.4N 97.0W MODERATE WEAKENING SLIGHTLY 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 020359