671 WTNT80 EGRR 190411 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 19.09.2023 HURRICANE NIGEL ANALYSED POSITION : 28.1N 52.3W ATCF IDENTIFIER : AL152023 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 19.09.2023 28.1N 52.3W MODERATE 12UTC 19.09.2023 30.0N 53.7W STRONG INTENSIFYING SLIGHTLY 00UTC 20.09.2023 32.3N 55.1W STRONG INTENSIFYING SLIGHTLY 12UTC 20.09.2023 35.0N 54.7W STRONG LITTLE CHANGE 00UTC 21.09.2023 37.6N 52.3W STRONG LITTLE CHANGE 12UTC 21.09.2023 40.3N 47.6W STRONG INTENSIFYING SLIGHTLY 00UTC 22.09.2023 42.5N 40.5W STRONG LITTLE CHANGE 12UTC 22.09.2023 45.2N 31.9W STRONG WEAKENING RAPIDLY 00UTC 23.09.2023 49.8N 24.4W STRONG LITTLE CHANGE 12UTC 23.09.2023 POST-TROPICAL TROPICAL DEPRESSION 95E ANALYSED POSITION : 14.1N 116.3W ATCF IDENTIFIER : EP952023 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 19.09.2023 14.1N 116.3W WEAK 12UTC 19.09.2023 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 30 HOURS FORECAST POSITION AT T+ 30 : 14.1N 123.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 20.09.2023 14.6N 124.2W WEAK INTENSIFYING RAPIDLY 00UTC 21.09.2023 14.7N 125.9W WEAK LITTLE CHANGE 12UTC 21.09.2023 15.5N 127.5W WEAK LITTLE CHANGE 00UTC 22.09.2023 16.1N 128.2W WEAK LITTLE CHANGE 12UTC 22.09.2023 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 48 HOURS FORECAST POSITION AT T+ 48 : 13.9N 21.6W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 21.09.2023 13.9N 21.6W WEAK 12UTC 21.09.2023 13.6N 24.8W WEAK LITTLE CHANGE 00UTC 22.09.2023 13.8N 28.4W WEAK LITTLE CHANGE 12UTC 22.09.2023 14.4N 31.2W WEAK LITTLE CHANGE 00UTC 23.09.2023 15.5N 33.5W WEAK LITTLE CHANGE 12UTC 23.09.2023 16.4N 35.6W WEAK LITTLE CHANGE 00UTC 24.09.2023 17.6N 37.0W MODERATE LITTLE CHANGE 12UTC 24.09.2023 18.5N 38.7W MODERATE LITTLE CHANGE 00UTC 25.09.2023 19.2N 41.5W MODERATE INTENSIFYING SLIGHTLY 12UTC 25.09.2023 20.1N 44.5W MODERATE LITTLE CHANGE 00UTC 26.09.2023 21.6N 47.4W STRONG 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 190411