WTXS31 PGTW 242100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 13S (EMNATI) WARNING NR 018// RMKS/ 1. TROPICAL CYCLONE 13S (EMNATI) WARNING NR 018 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 241800Z --- NEAR 28.7S 41.8E MOVEMENT PAST SIX HOURS - 200 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING SUBTROPICAL RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 150 NM NORTHWEST QUADRANT REPEAT POSIT: 28.7S 41.8E --- FORECASTS: 12 HRS, VALID AT: 250600Z --- 31.2S 41.5E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY SUBTROPICAL RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT --- REMARKS: 242100Z POSITION NEAR 29.3S 41.7E. 24FEB22. TROPICAL CYCLONE 13S (EMNATI), LOCATED APPROXIMATELY 400 NM SOUTH-SOUTHEAST OF EUROPA ISLAND, HAS TRACKED SOUTH- SOUTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. THE CONVECTIVE SHIELD HAS SEPARATED FROM THE LOW LEVEL CIRCULATION AND DRIFTED POLEWARD, LEAVING AN EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) THAT MAINTAINS A SHALLOW WARM CORE. THE LLCC WILL REMAIN ORGANIZED AND GENERATE GALE FORCE WINDS FOR ANOTHER TWO DAYS BUT IS TRACKING OVER PROGRESSIVELY COOLER WATERS AND RAPIDLY BECOMING A SUBTROPICAL SYSTEM. THE SYSTEM WILL EVENTUALLY TURN WESTWARD AND MERGE INTO THE ROARING FORTIES AS IT CROSSES THE 35TH LATITUDE. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 241800Z IS 18 FEET. // NNNN