WTMA20 FIMP 241830 TTT WARNING OF HURRICANE FORCE AT 1800 UTC, TROPICAL CYCLONE 11 (HORACIO) 964 HPA WAS CENTERED WITHIN 30 NM RADIUS OF POINT 25.0 S / 64.8 E (TWENTY FIVE DECIMAL ZERO DEGREES SOUTH AND SIXTY FOUR DECIMAL EIGHT DEGREES EAST). MOVEMENT: SOUTH-SOUTH-EAST 16 KT THREAT AREAS: SQUALLY WEATHER WITHIN A 130 NM RADIUS AROUND THE CENTRE, EXTENDING UP TO 450 NM IN THE SOUTHERN SEMI-CIRCLE. HURRICANE FORCE WINDS 65/80 KT AND VERY HIGH TO PHENOMENAL SEAS WITHIN A 25 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 30 NM IN THE SOUTHERN SEMI-CIRCLE AND THE SOUTH-EASTERN QUADRANT. STORM FORCE WINDS 50/60 KT AND HIGH TO VERY HIGH SEAS WITHIN A 40 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 45 NM IN THE WESTERN SEMI-CIRCLE. GALE FORCE WINDS 35/45 KT AND VERY ROUGH TO HIGH SEAS WITHIN A 55 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 65 NM IN THE EASTERN SEMI-CIRCLE AND UP TO 70 NM IN THE SOUTH-WESTERN QUADRANT. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN A 65 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 80 NM IN THE SOUTH-WESTERN QUADRANT AND UP TO 95 NM IN THE EASTERN SEMI-CIRCLE. STRONG GUSTS UNDER SQUALLS. END=