WTXS31 PGTW 122100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 24S (IVONE) WARNING NR 010// RMKS/ 1. TROPICAL CYCLONE 24S (IVONE) WARNING NR 010 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 121800Z --- NEAR 20.2S 71.0E MOVEMENT PAST SIX HOURS - 250 DEGREES AT 17 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 000 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT REPEAT POSIT: 20.2S 71.0E --- FORECASTS: 12 HRS, VALID AT: 130600Z --- 22.3S 68.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 205 DEG/ 15 KTS --- 24 HRS, VALID AT: 131800Z --- 25.0S 67.3E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 185 DEG/ 15 KTS --- 36 HRS, VALID AT: 140600Z --- 28.0S 66.9E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 150 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 165 DEG/ 16 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 141800Z --- 31.1S 67.9E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 130 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 140 DEG/ 27 KTS --- 72 HRS, VALID AT: 151800Z --- 38.9S 76.7E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 122100Z POSITION NEAR 20.7S 70.5E. 12MAR25. TROPICAL CYCLONE 24S (IVONE), LOCATED APPROXIMATELY 771 NM EAST OF PORT LOUIS, MAURITIUS, HAS TRACKED WEST-SOUTHWESTWARD AT 17 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 121800Z IS 998 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 121800Z IS 28 FEET. NEXT WARNINGS AT 130900Z AND 132100Z.// NNNN