000 WTNT80 EGRR 071617 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 07.09.2017 HURRICANE IRMA ANALYSED POSITION : 20.0N 69.0W ATCF IDENTIFIER : AL112017 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 07.09.2017 20.0N 69.0W INTENSE 00UTC 08.09.2017 21.2N 71.7W INTENSE INTENSIFYING RAPIDLY 12UTC 08.09.2017 21.7N 74.5W INTENSE LITTLE CHANGE 00UTC 09.09.2017 22.0N 76.7W INTENSE INTENSIFYING SLIGHTLY 12UTC 09.09.2017 22.0N 78.7W INTENSE WEAKENING RAPIDLY 00UTC 10.09.2017 22.5N 80.1W INTENSE LITTLE CHANGE 12UTC 10.09.2017 23.3N 80.9W INTENSE INTENSIFYING SLIGHTLY 00UTC 11.09.2017 24.7N 81.1W INTENSE INTENSIFYING SLIGHTLY 12UTC 11.09.2017 26.7N 81.3W INTENSE LITTLE CHANGE 00UTC 12.09.2017 29.4N 81.1W INTENSE WEAKENING RAPIDLY 12UTC 12.09.2017 31.9N 81.3W STRONG WEAKENING SLIGHTLY 00UTC 13.09.2017 34.2N 81.3W MODERATE WEAKENING RAPIDLY 12UTC 13.09.2017 35.9N 80.8W MODERATE WEAKENING RAPIDLY HURRICANE JOSE ANALYSED POSITION : 14.7N 50.1W ATCF IDENTIFIER : AL122017 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 07.09.2017 14.7N 50.1W STRONG 00UTC 08.09.2017 15.4N 53.5W STRONG INTENSIFYING SLIGHTLY 12UTC 08.09.2017 15.9N 56.3W STRONG WEAKENING SLIGHTLY 00UTC 09.09.2017 16.7N 58.4W STRONG LITTLE CHANGE 12UTC 09.09.2017 17.7N 60.2W STRONG LITTLE CHANGE 00UTC 10.09.2017 19.4N 61.7W INTENSE INTENSIFYING RAPIDLY 12UTC 10.09.2017 21.3N 63.8W STRONG WEAKENING SLIGHTLY 00UTC 11.09.2017 23.0N 66.0W STRONG LITTLE CHANGE 12UTC 11.09.2017 24.6N 67.7W STRONG WEAKENING SLIGHTLY 00UTC 12.09.2017 26.4N 68.3W STRONG LITTLE CHANGE 12UTC 12.09.2017 27.5N 67.7W STRONG LITTLE CHANGE 00UTC 13.09.2017 28.0N 65.8W INTENSE LITTLE CHANGE 12UTC 13.09.2017 27.6N 63.2W INTENSE INTENSIFYING SLIGHTLY HURRICANE KATIA ANALYSED POSITION : 21.4N 94.5W ATCF IDENTIFIER : AL132017 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 07.09.2017 21.4N 94.5W MODERATE 00UTC 08.09.2017 21.4N 94.9W MODERATE INTENSIFYING SLIGHTLY 12UTC 08.09.2017 21.2N 95.9W MODERATE INTENSIFYING SLIGHTLY 00UTC 09.09.2017 20.9N 97.0W MODERATE WEAKENING SLIGHTLY 12UTC 09.09.2017 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 126 HOURS FORECAST POSITION AT T+126 : 13.9N 113.5W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 13.09.2017 13.9N 114.1W WEAK WEAKENING RAPIDLY 12UTC 13.09.2017 14.5N 115.5W 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 071617