WTMA20 FIMP 281815 TTT WARNING OF STORM FORCE WINDS AT 28/1800 UTC, SEVERE TROPICAL STORM 10 (GARANCE) 980 HPA WAS CENTRED WITHIN 20 NM RADIUS OF POINT 24.1S 54.9E (TWENTY FOUR DECIMAL ONE DEGREES SOUTH AND FIFTY FOUR DECIMAL NINE DEGREES EAST). MOVEMENT: SOUTH 18 KT THREAT AREAS: SQUALLY WEATHER WITHIN A 60 NM RADIUS AROUND THE CENTER, EXTENDING UP TO 200 NM IN THE NORTHERN SEMI-CIRCLE. STORM FORCE WINDS 50/60 KT AND HIGH TO VERY HIGH SEAS WITHIN A 30 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 40 NM IN THE EASTERN 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. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN A 70 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 85 NM IN THE SOUTH-WESTERN QUADRANT AND UP TO 120 NM IN THE EASTERN SEMI-CIRCLE. STRONG GUSTS UNDER SQUALLS. T.O.O: 28/1815UTC END=