000 WTNT80 EGRR 271601 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 27.10.2020 TROPICAL STORM ZETA ANALYSED POSITION : 21.3N 88.9W ATCF IDENTIFIER : AL282020 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 27.10.2020 21.3N 88.9W MODERATE 00UTC 28.10.2020 22.7N 91.4W MODERATE LITTLE CHANGE 12UTC 28.10.2020 25.1N 91.9W MODERATE LITTLE CHANGE 00UTC 29.10.2020 28.6N 90.9W MODERATE INTENSIFYING SLIGHTLY 12UTC 29.10.2020 33.6N 86.3W MODERATE WEAKENING RAPIDLY 00UTC 30.10.2020 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 90 HOURS FORECAST POSITION AT T+ 90 : 12.4N 119.1W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 31.10.2020 12.1N 119.1W WEAK WEAKENING SLIGHTLY 00UTC 01.11.2020 12.7N 119.0W WEAK LITTLE CHANGE 12UTC 01.11.2020 13.2N 119.2W WEAK LITTLE CHANGE 00UTC 02.11.2020 13.2N 119.8W WEAK LITTLE CHANGE 12UTC 02.11.2020 13.1N 121.5W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 114 HOURS FORECAST POSITION AT T+114 : 10.8N 103.2W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 01.11.2020 11.4N 103.8W WEAK WEAKENING RAPIDLY 00UTC 02.11.2020 11.9N 105.5W WEAK LITTLE CHANGE 12UTC 02.11.2020 12.2N 107.9W WEAK 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 271601