WTXS31 PGTW 220300 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 21S (GUAMBE) WARNING NR 010// RMKS/ 1. TROPICAL CYCLONE 21S (GUAMBE) 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: 220000Z --- NEAR 34.0S 44.9E MOVEMENT PAST SIX HOURS - 115 DEGREES AT 35 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT REPEAT POSIT: 34.0S 44.9E --- FORECASTS: 12 HRS, VALID AT: 221200Z --- 38.4S 54.1E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 000 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 265 NM SOUTHEAST QUADRANT 230 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT --- REMARKS: 220300Z POSITION NEAR 35.1S 47.2E. 22FEB21. TROPICAL CYCLONE 21S (GUAMBE), LOCATED APPROXIMATELY 750 NM SOUTH-SOUTHEAST OF EUROPA ISLAND, HAS TRACKED EAST-SOUTHEASTWARD AT 35 KNOTS OVER THE PAST SIX HOURS. THE CURRENT POSITION IS SITUATED WITHIN A PARTIALLY-EXPOSED CENTER FEATURE EVIDENT IN 220000Z INFRARED SATELLITE AND 220056Z SSMIS 91 GHZ IMAGERY. THE INTENSITY IS CONSISTENT WITH TIME-LATE ASCAT DATA FROM AROUND 211800Z, WHICH INDICATED AN INTENSITY AROUND OR SLIGHTLY HIGHER THAN 55 KNOTS. TC 21S IS RAPIDLY ACCELERATING INTO THE WESTERLY FLOW PATTERN AS IT MERGERS WITH A MID-LATITUDE TROUGH. FOLLOWING A RAPID TRANSITION, 21S NOW FULLY EXTRATROPICAL. THE SYSTEM WILL CONTINUE TO MOVE RAPIDLY EAST-SOUTHEASTWARD AS A STORM FORCE LOW WITH BAROCLINIC SUPPORT DURING THE 12-HOUR FORECAST PERIOD. 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 220000Z IS 21 FEET.// NNNN