000 WTNT80 EGRR 101800 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 10.09.2011 HURRICANE KATIA ANALYSED POSITION : 43.7N 50.9W ATCF IDENTIFIER : AL122011 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 10.09.2011 43.7N 50.9W INTENSE 00UTC 11.09.2011 47.0N 38.9W EXTRA-TROPICAL TROPICAL STORM MARIA ANALYSED POSITION : 16.8N 60.7W ATCF IDENTIFIER : AL142011 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 10.09.2011 16.8N 60.7W WEAK 00UTC 11.09.2011 18.4N 63.5W WEAK LITTLE CHANGE 12UTC 11.09.2011 19.4N 65.5W WEAK LITTLE CHANGE 00UTC 12.09.2011 20.2N 66.7W MODERATE INTENSIFYING SLIGHTLY 12UTC 12.09.2011 21.4N 68.7W MODERATE LITTLE CHANGE 00UTC 13.09.2011 22.1N 69.9W STRONG INTENSIFYING SLIGHTLY 12UTC 13.09.2011 22.7N 71.5W INTENSE INTENSIFYING SLIGHTLY 00UTC 14.09.2011 24.0N 72.4W INTENSE INTENSIFYING SLIGHTLY 12UTC 14.09.2011 25.7N 73.3W INTENSE INTENSIFYING SLIGHTLY 00UTC 15.09.2011 28.0N 73.4W INTENSE LITTLE CHANGE 12UTC 15.09.2011 30.8N 72.9W INTENSE WEAKENING SLIGHTLY 00UTC 16.09.2011 33.2N 70.8W STRONG WEAKENING SLIGHTLY 12UTC 16.09.2011 35.2N 68.0W STRONG WEAKENING SLIGHTLY TROPICAL STORM NATE ANALYSED POSITION : 20.1N 93.8W ATCF IDENTIFIER : AL152011 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 10.09.2011 20.1N 93.8W MODERATE 00UTC 11.09.2011 20.3N 94.7W STRONG INTENSIFYING SLIGHTLY 12UTC 11.09.2011 20.8N 96.1W INTENSE INTENSIFYING RAPIDLY 00UTC 12.09.2011 21.3N 96.9W MODERATE WEAKENING RAPIDLY 12UTC 12.09.2011 BELOW TROPICAL STORM STRENGTH 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 MET OFFICE, EXETER, UK TOO 101659