WTMA20 FIMP 101830 TTT WARNING OF GALE FORCE WINDS AT 10/1800 UTC, MODERATE TROPICAL STORM 13 (IVONE) 985 HPA WAS CENTERED WITHIN 30 NM RADIUS OF POINT 20.1 S / 81.2 E (TWENTY DECIMAL ONE DEGREES SOUTH AND EIGHTY ONE DECIMAL TWO DEGREES EAST). MOVEMENT: SOUTH-WEST 6 KT THREAT AREAS: SQUALLY WEATHER IN A 120 NM RADIUS AROUND THE CENTER, EXTENDING UP TO 450 NM IN THE SOUTH-EASTERN QUADRANT. GALE FORCE WINDS 35/45 KT AND VERY ROUGH TO HIGH SEAS WITHIN A 65 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 70 NM IN THE NORTH-EASTERN QUADRANT, UP TO 155 NM IN THE SOUTH-WESTERN QUADRANT AND UP TO 235 NM IN THE SOUTH-EASTERN QUADRANT. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN A 115 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 135 NM IN THE NORTH-EASTERN QUADRANT, UP TO 235 NM IN THE SOUTH-WESTERN QUADRANT AND UP TO 370 NM IN THE SOUTH-EASTERN QUADRANT. STRONG GUSTS UNDER SQUALLS. END=