767 WTNT80 EGRR 241613 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 24.09.2022 TROPICAL STORM GASTON ANALYSED POSITION : 38.0N 30.4W ATCF IDENTIFIER : AL082022 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 24.09.2022 38.0N 30.4W WEAK 00UTC 25.09.2022 38.6N 32.6W WEAK LITTLE CHANGE 12UTC 25.09.2022 39.5N 36.1W WEAK LITTLE CHANGE 00UTC 26.09.2022 39.5N 37.7W WEAK WEAKENING SLIGHTLY 12UTC 26.09.2022 BELOW TROPICAL STORM STRENGTH TROPICAL STORM IAN ANALYSED POSITION : 14.7N 74.5W ATCF IDENTIFIER : AL092022 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 24.09.2022 14.7N 74.5W WEAK 00UTC 25.09.2022 14.2N 77.0W WEAK LITTLE CHANGE 12UTC 25.09.2022 14.9N 79.2W WEAK LITTLE CHANGE 00UTC 26.09.2022 15.4N 81.4W WEAK LITTLE CHANGE 12UTC 26.09.2022 17.0N 82.8W WEAK LITTLE CHANGE 00UTC 27.09.2022 18.9N 84.2W WEAK LITTLE CHANGE 12UTC 27.09.2022 20.9N 85.1W MODERATE LITTLE CHANGE 00UTC 28.09.2022 23.0N 85.6W MODERATE LITTLE CHANGE 12UTC 28.09.2022 24.5N 85.8W MODERATE LITTLE CHANGE 00UTC 29.09.2022 25.6N 85.1W MODERATE LITTLE CHANGE 12UTC 29.09.2022 26.6N 84.1W MODERATE LITTLE CHANGE 00UTC 30.09.2022 27.0N 83.2W MODERATE INTENSIFYING SLIGHTLY 12UTC 30.09.2022 28.3N 82.5W MODERATE LITTLE CHANGE TROPICAL STORM NEWTON ANALYSED POSITION : 18.9N 113.0W ATCF IDENTIFIER : EP152022 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 24.09.2022 18.9N 113.0W WEAK 00UTC 25.09.2022 BELOW TROPICAL STORM STRENGTH TROPICAL STORM HERMINE ANALYSED POSITION : 20.3N 21.0W ATCF IDENTIFIER : AL102022 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 24.09.2022 20.3N 21.0W WEAK 00UTC 25.09.2022 22.6N 21.1W WEAK LITTLE CHANGE 12UTC 25.09.2022 22.8N 20.9W WEAK LITTLE CHANGE 00UTC 26.09.2022 24.0N 20.5W WEAK LITTLE CHANGE 12UTC 26.09.2022 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 99L ANALYSED POSITION : 11.7N 36.1W ATCF IDENTIFIER : AL992022 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 24.09.2022 11.7N 36.1W WEAK 00UTC 25.09.2022 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 78 HOURS FORECAST POSITION AT T+ 78 : 13.6N 37.3W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 28.09.2022 13.9N 37.1W WEAK WEAKENING RAPIDLY 12UTC 28.09.2022 15.3N 37.5W WEAK LITTLE CHANGE 00UTC 29.09.2022 17.2N 37.9W WEAK LITTLE CHANGE 12UTC 29.09.2022 19.5N 38.6W WEAK LITTLE CHANGE 00UTC 30.09.2022 23.1N 39.0W WEAK LITTLE CHANGE 12UTC 30.09.2022 26.0N 39.7W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 144 HOURS FORECAST POSITION AT T+144 : 34.7N 41.9W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 30.09.2022 34.7N 41.9W WEAK NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 144 HOURS FORECAST POSITION AT T+144 : 39.9N 4.4E VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 30.09.2022 39.9N 4.4E WEAK 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 241613