000 WTNT80 EGRR 111617 MET OFFICE TROPICAL CYCLONE GUIDANCE FOR NORTH-EAST PACIFIC AND ATLANTIC GLOBAL MODEL DATA TIME 12UTC 11.09.2015 TROPICAL STORM HENRI ANALYSED POSITION : 37.3N 59.8W ATCF IDENTIFIER : AL082015 VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 11.09.2015 37.3N 59.8W WEAK 00UTC 12.09.2015 40.9N 57.7W WEAK LITTLE CHANGE 12UTC 12.09.2015 45.0N 53.9W WEAK LITTLE CHANGE 00UTC 13.09.2015 47.7N 48.5W WEAK LITTLE CHANGE 12UTC 13.09.2015 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 24 HOURS FORECAST POSITION AT T+ 24 : 25.7N 175.4W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 12.09.2015 25.7N 175.4W WEAK 00UTC 13.09.2015 27.2N 171.3W MODERATE INTENSIFYING SLIGHTLY 12UTC 13.09.2015 32.8N 167.9W MODERATE INTENSIFYING SLIGHTLY 00UTC 14.09.2015 40.8N 171.1W MODERATE WEAKENING SLIGHTLY 12UTC 14.09.2015 BELOW TROPICAL STORM STRENGTH NEW TROPICAL STORM FORECAST TO DEVELOP AFTER 66 HOURS FORECAST POSITION AT T+ 66 : 11.0N 39.6W VERIFYING TIME POSITION STRENGTH TENDENCY -------------- -------- -------- -------- 12UTC 14.09.2015 11.0N 41.1W WEAK WEAKENING SLIGHTLY 00UTC 15.09.2015 11.7N 43.7W WEAK LITTLE CHANGE 12UTC 15.09.2015 12.6N 46.4W WEAK LITTLE CHANGE 00UTC 16.09.2015 13.5N 47.8W WEAK LITTLE CHANGE 12UTC 16.09.2015 14.4N 48.8W MODERATE INTENSIFYING SLIGHTLY 00UTC 17.09.2015 15.3N 49.5W MODERATE INTENSIFYING SLIGHTLY 12UTC 17.09.2015 16.3N 49.9W 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 111617