WTMA20 FIMP 221840 TTT WARNING OF GALE CHENGE HAS WEAKENED INTO A MODERATE TROPICAL STORM. AT 22/1800 UTC, MODERATE TROPICAL STORM CHENGE 993 HPA WAS CENTRED WITHIN 20 NM RADIUS OF POINT 10.3 S / 60.7 E (TEN DECIMAL THREE DEGREES SOUTH AND SIXTY DECIMAL SEVEN DEGREES EAST) MOVEMENT: WEST 10 KT THREAT AREAS: SQUALLY WEATHER WITHIN A 100 NM RADIUS AROUND THE CENTER, EXTENDING UP TO 150 NM IN THE SOUTHERN SEMI-CIRCLE AND UP TO 200 NM IN THE NORTH-WESTERN QUADRANT. GALE FORCE WINDS 35/40 KT AND VERY ROUGH TO HIGH SEAS WITHIN A 70 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 75 NM IN THE NORTH-WESTERN QUADRANT, UP TO 80 NM IN THE SOUTH-WESTERN QUADRANT AND UP TO 90 NM IN THE SOUTH-EASTERN QUADRANT. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN A 110 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 140 NM IN THE SOUTH-WESTERN QUADRANT AND UP TO 160 NM IN THE SOUTH-EASTERN QUADRANT. STRONG GUSTS UNDER SQUALLS. END=