012 WTNT80 EGRR 271558 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 27.06.2019 TROPICAL STORM ALVIN ANALYSED POSITION : 15.4N 112.7W ATCF IDENTIFIER : EP012019 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 27.06.2019 15.4N 112.7W MODERATE 00UTC 28.06.2019 16.7N 115.0W MODERATE LITTLE CHANGE 12UTC 28.06.2019 18.1N 117.0W WEAK WEAKENING SLIGHTLY 00UTC 29.06.2019 18.9N 118.6W WEAK WEAKENING SLIGHTLY 12UTC 29.06.2019 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 60 HOURS FORECAST POSITION AT T+ 60 : 10.2N 96.6W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 30.06.2019 10.2N 96.6W WEAK 12UTC 30.06.2019 11.1N 99.4W WEAK LITTLE CHANGE 00UTC 01.07.2019 11.9N 101.2W MODERATE INTENSIFYING SLIGHTLY 12UTC 01.07.2019 12.3N 102.2W MODERATE LITTLE CHANGE 00UTC 02.07.2019 12.2N 103.3W MODERATE LITTLE CHANGE 12UTC 02.07.2019 11.7N 104.1W MODERATE LITTLE CHANGE 00UTC 03.07.2019 11.1N 105.1W MODERATE LITTLE CHANGE 12UTC 03.07.2019 10.4N 106.4W MODERATE INTENSIFYING SLIGHTLY NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 120 HOURS FORECAST POSITION AT T+120 : 11.9N 119.8W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 02.07.2019 11.9N 119.8W WEAK 00UTC 03.07.2019 12.2N 121.6W WEAK LITTLE CHANGE 12UTC 03.07.2019 12.3N 123.5W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 138 HOURS FORECAST POSITION AT T+138 : 10.0N 139.2W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 03.07.2019 10.0N 139.9W WEAK WEAKENING RAPIDLY 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 271558