123 WTNT80 EGRR 310402 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 31.08.2021 TROPICAL DEPRESSION IDA ANALYSED POSITION : 33.0N 90.3W ATCF IDENTIFIER : AL092021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 31.08.2021 33.0N 90.3W MODERATE 12UTC 31.08.2021 34.0N 88.4W MODERATE LITTLE CHANGE 00UTC 01.09.2021 35.3N 85.8W MODERATE LITTLE CHANGE 12UTC 01.09.2021 36.4N 82.3W MODERATE LITTLE CHANGE 00UTC 02.09.2021 37.5N 79.5W MODERATE LITTLE CHANGE 12UTC 02.09.2021 38.5N 76.2W MODERATE LITTLE CHANGE 00UTC 03.09.2021 BELOW TROPICAL STORM STRENGTH TROPICAL DEPRESSION 90L ANALYSED POSITION : 11.0N 15.2W ATCF IDENTIFIER : AL902021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 31.08.2021 11.0N 15.2W WEAK 12UTC 31.08.2021 BELOW TROPICAL STORM STRENGTH TROPICAL STORM KATE ANALYSED POSITION : 22.5N 50.7W ATCF IDENTIFIER : AL102021 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 31.08.2021 22.5N 50.7W WEAK 12UTC 31.08.2021 23.4N 50.4W WEAK LITTLE CHANGE 00UTC 01.09.2021 24.7N 50.6W WEAK LITTLE CHANGE 12UTC 01.09.2021 26.2N 51.6W WEAK LITTLE CHANGE 00UTC 02.09.2021 27.6N 52.7W WEAK LITTLE CHANGE 12UTC 02.09.2021 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 36 HOURS FORECAST POSITION AT T+ 36 : 12.1N 27.4W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 01.09.2021 12.1N 27.4W WEAK 00UTC 02.09.2021 12.4N 31.6W WEAK LITTLE CHANGE 12UTC 02.09.2021 12.7N 35.8W MODERATE LITTLE CHANGE 00UTC 03.09.2021 12.9N 39.7W MODERATE LITTLE CHANGE 12UTC 03.09.2021 13.6N 43.2W MODERATE INTENSIFYING SLIGHTLY 00UTC 04.09.2021 15.0N 46.1W MODERATE INTENSIFYING SLIGHTLY 12UTC 04.09.2021 16.6N 48.8W STRONG INTENSIFYING SLIGHTLY 00UTC 05.09.2021 18.7N 51.0W STRONG INTENSIFYING SLIGHTLY 12UTC 05.09.2021 20.8N 53.4W STRONG LITTLE CHANGE 00UTC 06.09.2021 22.8N 55.5W 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 310402