000 WTNT80 EGRR 010600 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 00UTC 01.09.2011 HURRICANE KATIA ANALYSED POSITION : 14.7N 43.4W ATCF IDENTIFIER : AL122011 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 01.09.2011 14.7N 43.4W STRONG 12UTC 01.09.2011 15.3N 47.0W STRONG INTENSIFYING SLIGHTLY 00UTC 02.09.2011 16.1N 49.7W INTENSE INTENSIFYING SLIGHTLY 12UTC 02.09.2011 17.0N 51.9W INTENSE LITTLE CHANGE 00UTC 03.09.2011 18.0N 53.5W INTENSE LITTLE CHANGE 12UTC 03.09.2011 18.9N 55.1W STRONG WEAKENING SLIGHTLY 00UTC 04.09.2011 19.7N 56.4W STRONG LITTLE CHANGE 12UTC 04.09.2011 20.2N 57.6W STRONG LITTLE CHANGE 00UTC 05.09.2011 20.8N 59.2W STRONG LITTLE CHANGE 12UTC 05.09.2011 21.4N 60.8W STRONG LITTLE CHANGE 00UTC 06.09.2011 21.9N 62.5W INTENSE LITTLE CHANGE 12UTC 06.09.2011 22.2N 64.2W INTENSE LITTLE CHANGE 00UTC 07.09.2011 22.2N 66.3W INTENSE LITTLE CHANGE NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 48 HOURS FORECAST POSITION AT T+ 48 : 27.0N 93.6W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 00UTC 03.09.2011 27.0N 93.6W WEAK 12UTC 03.09.2011 27.2N 93.9W WEAK LITTLE CHANGE 00UTC 04.09.2011 26.5N 92.6W WEAK LITTLE CHANGE 12UTC 04.09.2011 28.0N 91.9W MODERATE INTENSIFYING RAPIDLY 00UTC 05.09.2011 27.7N 91.6W MODERATE INTENSIFYING SLIGHTLY 12UTC 05.09.2011 28.4N 90.6W INTENSE INTENSIFYING RAPIDLY 00UTC 06.09.2011 28.9N 89.9W INTENSE WEAKENING RAPIDLY 12UTC 06.09.2011 29.5N 90.1W MODERATE WEAKENING RAPIDLY 00UTC 07.09.2011 29.6N 90.8W 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 MET OFFICE, EXETER, UK TOO 010450