986 WTNT80 EGRR 070404 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 07.08.2018 HURRICANE HECTOR ANALYSED POSITION : 15.5N 144.3W ATCF IDENTIFIER : EP102018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 07.08.2018 15.5N 144.3W STRONG 12UTC 07.08.2018 15.6N 147.0W MODERATE WEAKENING SLIGHTLY 00UTC 08.08.2018 15.9N 149.8W MODERATE LITTLE CHANGE 12UTC 08.08.2018 16.0N 152.6W MODERATE LITTLE CHANGE 00UTC 09.08.2018 15.9N 155.8W MODERATE LITTLE CHANGE 12UTC 09.08.2018 16.0N 158.9W MODERATE WEAKENING SLIGHTLY 00UTC 10.08.2018 16.1N 162.4W MODERATE LITTLE CHANGE 12UTC 10.08.2018 16.2N 166.0W MODERATE LITTLE CHANGE 00UTC 11.08.2018 16.2N 169.1W MODERATE LITTLE CHANGE 12UTC 11.08.2018 16.2N 171.4W MODERATE LITTLE CHANGE 00UTC 12.08.2018 16.7N 173.0W MODERATE LITTLE CHANGE 12UTC 12.08.2018 17.8N 174.9W MODERATE WEAKENING SLIGHTLY 00UTC 13.08.2018 19.4N 177.2W WEAK LITTLE CHANGE TROPICAL STORM ILEANA ANALYSED POSITION : 18.4N 104.9W ATCF IDENTIFIER : EP112018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 07.08.2018 18.4N 104.9W MODERATE 12UTC 07.08.2018 21.6N 109.4W MODERATE WEAKENING SLIGHTLY 00UTC 08.08.2018 BELOW TROPICAL STORM STRENGTH HURRICANE JOHN ANALYSED POSITION : 16.4N 108.8W ATCF IDENTIFIER : EP122018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 07.08.2018 16.4N 108.8W STRONG 12UTC 07.08.2018 17.1N 109.9W STRONG INTENSIFYING SLIGHTLY 00UTC 08.08.2018 18.2N 111.1W INTENSE INTENSIFYING SLIGHTLY 12UTC 08.08.2018 19.5N 112.5W INTENSE LITTLE CHANGE 00UTC 09.08.2018 21.3N 114.4W INTENSE INTENSIFYING SLIGHTLY 12UTC 09.08.2018 22.6N 116.5W INTENSE WEAKENING SLIGHTLY 00UTC 10.08.2018 23.8N 118.6W STRONG WEAKENING SLIGHTLY 12UTC 10.08.2018 24.8N 120.1W STRONG WEAKENING RAPIDLY 00UTC 11.08.2018 25.9N 121.6W MODERATE WEAKENING SLIGHTLY 12UTC 11.08.2018 26.3N 123.0W MODERATE WEAKENING SLIGHTLY 00UTC 12.08.2018 26.5N 123.8W WEAK LITTLE CHANGE 12UTC 12.08.2018 26.8N 124.2W WEAK LITTLE CHANGE 00UTC 13.08.2018 27.2N 123.8W WEAK LITTLE CHANGE TROPICAL STORM DEVELOPED IN THE MODEL ANALYSIS AT POSITION : 15.3N 123.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 07.08.2018 15.3N 123.7W WEAK 12UTC 07.08.2018 15.3N 125.0W WEAK LITTLE CHANGE 00UTC 08.08.2018 15.6N 126.0W WEAK LITTLE CHANGE 12UTC 08.08.2018 15.0N 127.7W WEAK LITTLE CHANGE 00UTC 09.08.2018 15.9N 128.7W WEAK LITTLE CHANGE 12UTC 09.08.2018 16.3N 129.6W WEAK LITTLE CHANGE 00UTC 10.08.2018 17.0N 129.8W WEAK LITTLE CHANGE 12UTC 10.08.2018 18.0N 129.4W WEAK LITTLE CHANGE 00UTC 11.08.2018 19.4N 128.6W WEAK LITTLE CHANGE 12UTC 11.08.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 18 HOURS FORECAST POSITION AT T+ 18 : 9.8N 157.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 08.08.2018 10.0N 157.8W WEAK LITTLE CHANGE 12UTC 08.08.2018 9.8N 158.4W WEAK LITTLE CHANGE 00UTC 09.08.2018 10.0N 158.4W WEAK LITTLE CHANGE 12UTC 09.08.2018 11.3N 157.7W MODERATE LITTLE CHANGE 00UTC 10.08.2018 14.2N 158.3W MODERATE INTENSIFYING SLIGHTLY 12UTC 10.08.2018 16.6N 161.5W MODERATE LITTLE CHANGE 00UTC 11.08.2018 18.9N 165.5W WEAK WEAKENING SLIGHTLY 12UTC 11.08.2018 20.4N 170.6W WEAK LITTLE CHANGE 00UTC 12.08.2018 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 070404