060 WTNT80 EGRR 141612 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 14.09.2023 HURRICANE LEE ANALYSED POSITION : 29.9N 68.0W ATCF IDENTIFIER : AL132023 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 14.09.2023 29.9N 68.0W INTENSE 00UTC 15.09.2023 32.3N 68.2W INTENSE LITTLE CHANGE 12UTC 15.09.2023 35.0N 67.2W STRONG LITTLE CHANGE 00UTC 16.09.2023 38.7N 66.1W STRONG LITTLE CHANGE 12UTC 16.09.2023 41.7N 66.3W STRONG LITTLE CHANGE 00UTC 17.09.2023 45.0N 65.6W MODERATE WEAKENING RAPIDLY 12UTC 17.09.2023 47.2N 63.0W MODERATE WEAKENING SLIGHTLY 00UTC 18.09.2023 49.5N 58.7W MODERATE WEAKENING SLIGHTLY 12UTC 18.09.2023 51.3N 50.2W MODERATE LITTLE CHANGE 00UTC 19.09.2023 53.6N 34.0W MODERATE INTENSIFYING SLIGHTLY 12UTC 19.09.2023 POST-TROPICAL TROPICAL DEPRESSION 94E ANALYSED POSITION : 11.5N 133.6W ATCF IDENTIFIER : EP942023 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 14.09.2023 11.5N 133.6W WEAK 00UTC 15.09.2023 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 97L ANALYSED POSITION : 12.4N 39.4W ATCF IDENTIFIER : AL972023 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 14.09.2023 12.4N 39.4W WEAK 00UTC 15.09.2023 BELOW TROPICAL STORM STRENGTH HURRICANE MARGOT ANALYSED POSITION : 36.1N 40.1W ATCF IDENTIFIER : AL142023 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 14.09.2023 36.1N 40.1W STRONG 00UTC 15.09.2023 36.7N 39.1W STRONG LITTLE CHANGE 12UTC 15.09.2023 36.5N 39.1W MODERATE LITTLE CHANGE 00UTC 16.09.2023 35.8N 39.2W MODERATE LITTLE CHANGE 12UTC 16.09.2023 35.3N 40.3W MODERATE WEAKENING SLIGHTLY 00UTC 17.09.2023 35.0N 42.1W WEAK WEAKENING SLIGHTLY 12UTC 17.09.2023 35.1N 43.4W WEAK LITTLE CHANGE 00UTC 18.09.2023 35.9N 44.1W WEAK LITTLE CHANGE 12UTC 18.09.2023 37.0N 43.4W WEAK LITTLE CHANGE 00UTC 19.09.2023 38.1N 40.9W WEAK LITTLE CHANGE 12UTC 19.09.2023 39.3N 36.8W WEAK INTENSIFYING SLIGHTLY 00UTC 20.09.2023 37.7N 34.0W WEAK LITTLE CHANGE 12UTC 20.09.2023 36.7N 33.1W WEAK WEAKENING SLIGHTLY 00UTC 21.09.2023 36.5N 32.5W WEAK LITTLE CHANGE 12UTC 21.09.2023 37.0N 31.5W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 66 HOURS FORECAST POSITION AT T+ 66 : 19.0N 48.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 17.09.2023 19.8N 49.0W WEAK LITTLE CHANGE 00UTC 18.09.2023 21.6N 51.0W WEAK LITTLE CHANGE 12UTC 18.09.2023 23.0N 52.9W WEAK LITTLE CHANGE 00UTC 19.09.2023 24.8N 54.4W WEAK LITTLE CHANGE 12UTC 19.09.2023 26.9N 56.5W WEAK LITTLE CHANGE 00UTC 20.09.2023 28.9N 58.1W MODERATE LITTLE CHANGE 12UTC 20.09.2023 30.7N 59.1W MODERATE LITTLE CHANGE 00UTC 21.09.2023 32.3N 59.3W MODERATE LITTLE CHANGE 12UTC 21.09.2023 33.3N 59.1W MODERATE LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 96 HOURS FORECAST POSITION AT T+ 96 : 38.3N 74.6W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 18.09.2023 38.3N 74.6W WEAK 00UTC 19.09.2023 41.2N 71.5W WEAK LITTLE CHANGE 12UTC 19.09.2023 45.5N 67.9W WEAK LITTLE CHANGE 00UTC 20.09.2023 48.4N 65.1W MODERATE LITTLE CHANGE 12UTC 20.09.2023 49.2N 61.0W WEAK LITTLE CHANGE 00UTC 21.09.2023 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 132 HOURS FORECAST POSITION AT T+132 : 12.8N 35.7W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 20.09.2023 12.8N 35.7W WEAK 12UTC 20.09.2023 13.8N 36.3W WEAK LITTLE CHANGE 00UTC 21.09.2023 13.9N 37.2W WEAK LITTLE CHANGE 12UTC 21.09.2023 15.0N 38.1W 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 141612