WTMA20 FIMP 281300 TTT WARNING OF STORM FORCE WINDS. DURING THE LAST SIX HOURS, GARANCE HAS WEAKENED INTO A SEVERE TROPICAL STORM. AT 28/1200 UTC, SEVERE TROPICAL STORM 10 (GARANCE) 980 HPA WAS CENTRED WITHIN 20 NM RADIUS OF POINT 22.4 S / 55.0 E (TWENTY TWO DECIMAL FOUR DEGREES SOUTH AND FIFTY FIVE DECIMAL ZERO DEGREES EAST). MOVEMENT: SOUTH-SOUTH-WEST 8 KT THREAT AREAS: SQUALLY WEATHER WITHIN A 130 NM RADIUS AROUND THE CENTER, EXTENDING UP TO 260 NM IN THE EASTERN SEMI-CIRCLE. STORM FORCE WINDS 50/60 KT AND HIGH TO VERY HIGH SEAS WITHIN A 35 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 40 NM IN THE NORTHERN SEMI-CIRCLE. GALE FORCE WINDS 35/45 KT AND VERY ROUGH TO HIGH SEAS WITHIN A 65 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 75 NM IN THE NORTH-WESTERN QUADRANT AND UP TO 95 NM IN THE EASTERN SEMI-CIRCLE. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN A 75 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 130 NM IN THE NORTH-WESTERN QUADRANT AND UP TO 140 NM IN THE EASTERN SEMI-CIRCLE. STRONG GUSTS UNDER SQUALLS. T.O.O: 28/1300UTC END=