439 WTNT80 EGRR 190402 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 19.09.2018 TROPICAL DEPRESSION OLIVIA ANALYSED POSITION : 21.1N 179.6W ATCF IDENTIFIER : EP172018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 19.09.2018 21.1N 179.6W WEAK 12UTC 19.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 94E ANALYSED POSITION : 22.0N 112.2W ATCF IDENTIFIER : EP942018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 19.09.2018 22.0N 112.2W WEAK 12UTC 19.09.2018 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION JOYCE ANALYSED POSITION : 30.3N 28.1W ATCF IDENTIFIER : AL102018 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 19.09.2018 30.3N 28.1W WEAK 12UTC 19.09.2018 30.0N 29.1W WEAK LITTLE CHANGE 00UTC 20.09.2018 29.7N 30.5W WEAK LITTLE CHANGE 12UTC 20.09.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 30 HOURS FORECAST POSITION AT T+ 30 : 35.1N 68.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 20.09.2018 34.8N 66.5W WEAK WEAKENING RAPIDLY 00UTC 21.09.2018 32.8N 65.4W WEAK LITTLE CHANGE 12UTC 21.09.2018 31.0N 65.6W WEAK LITTLE CHANGE 00UTC 22.09.2018 29.3N 66.5W WEAK LITTLE CHANGE 12UTC 22.09.2018 29.2N 67.3W WEAK LITTLE CHANGE 00UTC 23.09.2018 28.6N 68.4W WEAK LITTLE CHANGE 12UTC 23.09.2018 29.2N 70.0W WEAK LITTLE CHANGE 00UTC 24.09.2018 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 78 HOURS FORECAST POSITION AT T+ 78 : 32.7N 44.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 22.09.2018 33.2N 43.1W WEAK INTENSIFYING SLIGHTLY 00UTC 23.09.2018 34.5N 43.2W MODERATE LITTLE CHANGE 12UTC 23.09.2018 34.7N 46.1W MODERATE LITTLE CHANGE 00UTC 24.09.2018 33.7N 47.4W MODERATE LITTLE CHANGE 12UTC 24.09.2018 32.8N 47.5W WEAK WEAKENING SLIGHTLY 00UTC 25.09.2018 32.8N 46.4W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 102 HOURS FORECAST POSITION AT T+102 : 24.1N 164.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 23.09.2018 25.2N 164.3W WEAK LITTLE CHANGE 00UTC 24.09.2018 29.5N 163.5W MODERATE INTENSIFYING SLIGHTLY 12UTC 24.09.2018 33.3N 165.3W MODERATE LITTLE CHANGE 00UTC 25.09.2018 35.3N 166.0W MODERATE INTENSIFYING 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 190402