000 WTNT80 EGRR 060410 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 06.09.2017 HURRICANE IRMA ANALYSED POSITION : 17.3N 60.4W ATCF IDENTIFIER : AL112017 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 06.09.2017 17.3N 60.4W INTENSE 12UTC 06.09.2017 18.0N 63.5W INTENSE LITTLE CHANGE 00UTC 07.09.2017 18.9N 66.1W STRONG WEAKENING SLIGHTLY 12UTC 07.09.2017 20.0N 68.7W INTENSE INTENSIFYING SLIGHTLY 00UTC 08.09.2017 20.9N 71.3W INTENSE INTENSIFYING SLIGHTLY 12UTC 08.09.2017 21.4N 73.8W INTENSE LITTLE CHANGE 00UTC 09.09.2017 21.9N 75.7W INTENSE INTENSIFYING SLIGHTLY 12UTC 09.09.2017 22.0N 77.7W INTENSE WEAKENING SLIGHTLY 00UTC 10.09.2017 22.2N 79.0W INTENSE LITTLE CHANGE 12UTC 10.09.2017 23.1N 79.5W INTENSE INTENSIFYING SLIGHTLY 00UTC 11.09.2017 24.8N 79.5W INTENSE INTENSIFYING RAPIDLY 12UTC 11.09.2017 27.0N 80.1W INTENSE INTENSIFYING SLIGHTLY 00UTC 12.09.2017 29.7N 81.4W INTENSE WEAKENING RAPIDLY TROPICAL STORM JOSE ANALYSED POSITION : 12.2N 41.5W ATCF IDENTIFIER : AL122017 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 06.09.2017 12.2N 41.5W WEAK 12UTC 06.09.2017 12.8N 43.9W MODERATE INTENSIFYING SLIGHTLY 00UTC 07.09.2017 13.6N 46.6W MODERATE INTENSIFYING SLIGHTLY 12UTC 07.09.2017 14.2N 49.9W MODERATE INTENSIFYING SLIGHTLY 00UTC 08.09.2017 14.7N 53.0W STRONG INTENSIFYING SLIGHTLY 12UTC 08.09.2017 15.2N 55.8W STRONG LITTLE CHANGE 00UTC 09.09.2017 15.8N 57.6W STRONG LITTLE CHANGE 12UTC 09.09.2017 17.0N 58.9W STRONG LITTLE CHANGE 00UTC 10.09.2017 18.6N 60.1W STRONG LITTLE CHANGE 12UTC 10.09.2017 20.4N 61.9W STRONG LITTLE CHANGE 00UTC 11.09.2017 22.2N 64.0W STRONG LITTLE CHANGE 12UTC 11.09.2017 23.6N 65.6W STRONG LITTLE CHANGE 00UTC 12.09.2017 24.5N 66.8W STRONG INTENSIFYING SLIGHTLY TROPICAL DEPRESSION 13L ANALYSED POSITION : 22.3N 96.4W ATCF IDENTIFIER : AL132017 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 06.09.2017 22.3N 96.4W WEAK 12UTC 06.09.2017 22.2N 95.9W WEAK LITTLE CHANGE 00UTC 07.09.2017 21.8N 95.1W WEAK LITTLE CHANGE 12UTC 07.09.2017 21.4N 94.9W WEAK LITTLE CHANGE 00UTC 08.09.2017 21.7N 94.9W MODERATE INTENSIFYING SLIGHTLY 12UTC 08.09.2017 21.7N 95.4W MODERATE INTENSIFYING SLIGHTLY 00UTC 09.09.2017 21.4N 96.1W MODERATE INTENSIFYING SLIGHTLY 12UTC 09.09.2017 20.8N 97.4W MODERATE WEAKENING SLIGHTLY 00UTC 10.09.2017 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 96 HOURS FORECAST POSITION AT T+ 96 : 10.6N 141.0W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 10.09.2017 10.6N 141.0W WEAK 12UTC 10.09.2017 11.0N 141.4W WEAK LITTLE CHANGE 00UTC 11.09.2017 11.8N 141.5W WEAK LITTLE CHANGE 12UTC 11.09.2017 12.4N 141.8W WEAK LITTLE CHANGE 00UTC 12.09.2017 12.8N 141.6W WEAK LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 114 HOURS FORECAST POSITION AT T+114 : 17.7N 105.5W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 11.09.2017 18.0N 106.8W WEAK WEAKENING RAPIDLY 12UTC 11.09.2017 18.0N 110.5W MODERATE INTENSIFYING SLIGHTLY 00UTC 12.09.2017 18.1N 113.5W MODERATE 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 060410