145 WTNT80 EGRR 180401 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 18.05.2020 TROPICAL STORM ARTHUR ANALYSED POSITION : 31.9N 76.9W ATCF IDENTIFIER : AL012020 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 18.05.2020 31.9N 76.9W WEAK 12UTC 18.05.2020 34.5N 75.7W WEAK INTENSIFYING SLIGHTLY 00UTC 19.05.2020 36.3N 72.8W MODERATE INTENSIFYING SLIGHTLY 12UTC 19.05.2020 37.0N 69.1W MODERATE LITTLE CHANGE 00UTC 20.05.2020 35.6N 65.2W WEAK WEAKENING SLIGHTLY 12UTC 20.05.2020 33.6N 62.1W WEAK WEAKENING SLIGHTLY 00UTC 21.05.2020 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 114 HOURS FORECAST POSITION AT T+114 : 9.0N 129.9W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 23.05.2020 9.2N 130.3W WEAK WEAKENING RAPIDLY 12UTC 23.05.2020 9.6N 130.8W WEAK LITTLE CHANGE 00UTC 24.05.2020 9.8N 131.3W 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 180401