WTMA20 FIMP 131850 TTT WARNING OF HURRICANE FORCE WINDS AT 1800 UTC, INTENSE TROPICAL CYCLONE 4 (CHIDO) 946 HPA WAS CENTRED WITHIN 20 NM RADIUS OF POINT 11.9S 47.7E (ELEVEN DECIMAL NINE DEGREES SOUTH ANDFORTY SEVEN DECIMAL SEVEN DEGREES EAST). MOVEMENT: WEST SOUTH WEST10 KT THREAT AREAS: SQUALLY WEATHER WITHIN A 130 NM RADIUS AROUND THE CENTER. HURRICANE FORCE WINDS 65/105 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 NORTH-EASTERN QUADRANT. 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 NORTH-EASTERN QUADRANT AND UP TO 45 NM IN THE NORTH-WESTERN QUADRANT. GALE FORCE WINDS 35/45 KT AND VERY ROUGH TO HIGH SEAS WITHIN A 50 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 55 NM IN THE SOUTHERN SEMI-CIRCLE AND UP TO 65 NM IN THE NORTH-EASTERN QUADRANT. NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS WITHIN A 65 NM RADIUS FROM THE CENTRE, EXTENDING UP TO 85 NM IN THE NORTH-EASTERN QUADRANT. STRONG GUSTS UNDER SQUALLS. END=