495 WTNT80 EGRR 040359 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 04.10.2018 HURRICANE LESLIE ANALYSED POSITION : 30.0N 57.0W ATCF IDENTIFIER : AL132018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 04.10.2018 30.0N 57.0W STRONG 12UTC 04.10.2018 31.7N 57.0W STRONG INTENSIFYING SLIGHTLY 00UTC 05.10.2018 34.3N 57.4W STRONG INTENSIFYING SLIGHTLY 12UTC 05.10.2018 36.6N 58.1W STRONG WEAKENING SLIGHTLY 00UTC 06.10.2018 37.6N 57.9W STRONG LITTLE CHANGE 12UTC 06.10.2018 38.0N 56.5W STRONG LITTLE CHANGE 00UTC 07.10.2018 37.8N 53.2W STRONG LITTLE CHANGE 12UTC 07.10.2018 36.8N 50.4W STRONG LITTLE CHANGE 00UTC 08.10.2018 35.8N 48.1W STRONG LITTLE CHANGE 12UTC 08.10.2018 34.9N 46.4W STRONG LITTLE CHANGE 00UTC 09.10.2018 33.9N 44.1W STRONG LITTLE CHANGE 12UTC 09.10.2018 31.6N 42.5W STRONG INTENSIFYING SLIGHTLY 00UTC 10.10.2018 29.4N 40.1W STRONG LITTLE CHANGE HURRICANE SERGIO ANALYSED POSITION : 13.4N 118.3W ATCF IDENTIFIER : EP212018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 04.10.2018 13.4N 118.3W INTENSE 12UTC 04.10.2018 14.7N 119.3W INTENSE LITTLE CHANGE 00UTC 05.10.2018 15.7N 120.4W INTENSE WEAKENING SLIGHTLY 12UTC 05.10.2018 16.2N 121.6W INTENSE INTENSIFYING SLIGHTLY 00UTC 06.10.2018 16.2N 122.8W INTENSE LITTLE CHANGE 12UTC 06.10.2018 15.9N 124.4W INTENSE LITTLE CHANGE 00UTC 07.10.2018 15.6N 125.7W INTENSE INTENSIFYING SLIGHTLY 12UTC 07.10.2018 15.3N 127.0W INTENSE LITTLE CHANGE 00UTC 08.10.2018 15.6N 128.2W INTENSE LITTLE CHANGE 12UTC 08.10.2018 16.1N 129.0W INTENSE WEAKENING SLIGHTLY 00UTC 09.10.2018 16.8N 129.1W INTENSE LITTLE CHANGE 12UTC 09.10.2018 17.5N 128.5W INTENSE LITTLE CHANGE 00UTC 10.10.2018 18.2N 127.3W STRONG LITTLE CHANGE HURRICANE WALAKA ANALYSED POSITION : 22.0N 168.2W ATCF IDENTIFIER : CP012018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 04.10.2018 22.0N 168.2W STRONG 12UTC 04.10.2018 25.9N 166.3W INTENSE LITTLE CHANGE 00UTC 05.10.2018 29.6N 167.5W STRONG WEAKENING RAPIDLY 12UTC 05.10.2018 30.8N 168.8W MODERATE WEAKENING SLIGHTLY 00UTC 06.10.2018 31.4N 167.9W MODERATE LITTLE CHANGE 12UTC 06.10.2018 33.0N 165.9W MODERATE WEAKENING SLIGHTLY 00UTC 07.10.2018 36.3N 163.1W MODERATE WEAKENING SLIGHTLY 12UTC 07.10.2018 42.7N 159.1W WEAK LITTLE CHANGE 00UTC 08.10.2018 48.9N 153.3W WEAK WEAKENING SLIGHTLY 12UTC 08.10.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 12 HOURS FORECAST POSITION AT T+ 12 : 9.7N 137.5W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 04.10.2018 9.7N 137.5W WEAK 00UTC 05.10.2018 10.0N 136.6W WEAK LITTLE CHANGE 12UTC 05.10.2018 10.4N 135.9W WEAK LITTLE CHANGE 00UTC 06.10.2018 10.5N 135.3W WEAK LITTLE CHANGE 12UTC 06.10.2018 9.8N 135.0W WEAK LITTLE CHANGE 00UTC 07.10.2018 8.8N 134.3W WEAK LITTLE CHANGE 12UTC 07.10.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 48 HOURS FORECAST POSITION AT T+ 48 : 12.9N 89.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 06.10.2018 12.9N 89.3W WEAK 12UTC 06.10.2018 13.5N 91.4W WEAK LITTLE CHANGE 00UTC 07.10.2018 14.2N 93.2W WEAK LITTLE CHANGE 12UTC 07.10.2018 14.3N 94.0W MODERATE INTENSIFYING SLIGHTLY 00UTC 08.10.2018 15.2N 94.7W MODERATE INTENSIFYING SLIGHTLY 12UTC 08.10.2018 16.7N 94.6W MODERATE WEAKENING SLIGHTLY 00UTC 09.10.2018 18.8N 94.9W WEAK WEAKENING SLIGHTLY 12UTC 09.10.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 60 HOURS FORECAST POSITION AT T+ 60 : 13.5N 91.4W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 06.10.2018 13.5N 91.4W WEAK 00UTC 07.10.2018 14.2N 93.2W WEAK LITTLE CHANGE 12UTC 07.10.2018 14.3N 94.0W MODERATE INTENSIFYING SLIGHTLY 00UTC 08.10.2018 15.2N 94.7W MODERATE INTENSIFYING SLIGHTLY 12UTC 08.10.2018 16.7N 94.6W MODERATE WEAKENING SLIGHTLY 00UTC 09.10.2018 18.8N 94.9W WEAK WEAKENING SLIGHTLY 12UTC 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 040359