WTXS32 PGTW 172100 WARNING ATCG MIL 21S SIO 260217193833 2026021718 21S GEZANI 021 01 195 14 SATL 030 T000 315S 0421E 050 R050 070 NE QD 070 SE QD 000 SW QD 000 NW QD R034 110 NE QD 160 SE QD 130 SW QD 090 NW QD T012 342S 0417E 045 R034 130 NE QD 140 SE QD 100 SW QD 070 NW QD T024 369S 0422E 040 R034 120 NE QD 110 SE QD 070 SW QD 060 NW QD AMP 000HR BECOMING EXTRATROPICAL 012HR EXTRATROPICAL 024HR EXTRATROPICAL SUBJ: TROPICAL CYCLONE 21S (GEZANI) WARNING NR 021 1. TROPICAL CYCLONE 21S (GEZANI) WARNING NR 021 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 171800Z --- NEAR 31.5S 42.1E MOVEMENT PAST SIX HOURS - 195 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING SUBTROPICAL RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 000 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT REPEAT POSIT: 31.5S 42.1E --- FORECASTS: 12 HRS, VALID AT: 180600Z --- 34.2S 41.7E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY SUBTROPICAL RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 170 DEG/ 14 KTS --- 24 HRS, VALID AT: 181800Z --- 36.9S 42.2E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY SUBTROPICAL RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT --- REMARKS: 172100Z POSITION NEAR 32.2S 42.0E. 17FEB26. TROPICAL CYCLONE 21S (GEZANI), LOCATED APPROXIMATELY 567 NM SOUTH OF EUROPA ISLAND, HAS TRACKED SOUTH-SOUTHWESTWARD AT 14 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY DEPICTS TROPICAL CYCLONE 21S WITH A SHALLOW, FULLY-EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC). A 171551Z RCM-1 SAR IMAGE REVEALED MAXIMUM WINDS OF AROUND 55-60 KTS WITHIN THE EASTERN SEMCIRCLE. THE INITIAL INTENSITY OF 50 KTS IS ASSESSED WITH HIGH CONFIDENCE BASED ON THE SLIGHT HIGH BIAS OF THE RCM-1 SENSOR. ENVIRONMENTAL CONDITIONS ARE ANALYZED TO BE UNFAVORABLE BASED ON STRONG POLEWARD OUTFLOW GREATLY OFFSET BY HIGH (25-30 KTS) VERTICAL WIND SHEAR, SIGNIFICANT DRY AIR ENTRAINMENT, AND COOL (24-25 C) SEA SURFACE TEMPERATURES. 21S IS FORECAST TO TRACK SOUTHWARD OVER THE NEXT 24 HOURS WITH STEADY WEAKENING AS IT CONTINUES TO FEEL THE EFFECTS OF THE HOSTILE ENVIRONMENT. SUBTROPICAL TRANSITION IS FORECAST TO COMPLETE WITHIN 12 HOURS AS THE VORTEX CONTINUES TO SHALLOW OUT AND INTERACTS WITH SEA SURFACE TEMPERATURES OF AROUND 22-23 C. 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. MINIMUM CENTRAL PRESSURE AT 171800Z IS 991 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171800Z IS 24 FEET.// 2126013118 126S 668E 15 2126020100 126S 672E 15 2126020106 125S 675E 15 2126020112 123S 668E 15 2126020118 123S 663E 20 2126020200 120S 659E 15 2126020206 117S 662E 15 2126020212 114S 664E 15 2126020218 109S 665E 20 2126020300 109S 653E 20 2126020306 111S 641E 20 2126020312 112S 644E 20 2126020318 114S 649E 20 2126020400 116S 645E 25 2126020406 117S 640E 25 2126020412 118S 635E 30 2126020418 121S 629E 25 2126020500 129S 624E 25 2126020506 135S 620E 30 2126020512 141S 615E 25 2126020518 145S 611E 25 2126020600 153S 602E 25 2126020606 160S 601E 25 2126020612 167S 596E 25 2126020618 173S 595E 25 2126020700 174S 589E 25 2126020706 180S 581E 25 2126020712 182S 575E 30 2126020718 182S 571E 35 2126020800 181S 569E 35 2126020806 180S 568E 35 2126020812 181S 565E 35 2126020818 181S 560E 40 2126020900 180S 555E 45 2126020906 180S 546E 50 2126020906 180S 546E 50 2126020912 180S 537E 60 2126020912 180S 537E 60 2126020918 181S 529E 70 2126020918 181S 529E 70 2126020918 181S 529E 70 2126021000 182S 521E 90 2126021000 182S 521E 90 2126021000 182S 521E 90 2126021006 181S 509E 100 2126021006 181S 509E 100 2126021006 181S 509E 100 2126021012 182S 502E 110 2126021012 182S 502E 110 2126021012 182S 502E 110 2126021018 181S 491E 90 2126021018 181S 491E 90 2126021018 181S 491E 90 2126021100 181S 483E 70 2126021100 181S 483E 70 2126021100 181S 483E 70 2126021106 183S 462E 50 2126021106 183S 462E 50 2126021112 186S 447E 30 2126021118 190S 434E 40 2126021200 195S 420E 50 2126021200 195S 420E 50 2126021206 199S 410E 65 2126021206 199S 410E 65 2126021206 199S 410E 65 2126021212 204S 399E 75 2126021212 204S 399E 75 2126021212 204S 399E 75 2126021218 208S 391E 90 2126021218 208S 391E 90 2126021218 208S 391E 90 2126021300 212S 381E 85 2126021300 212S 381E 85 2126021300 212S 381E 85 2126021306 219S 370E 85 2126021306 219S 370E 85 2126021306 219S 370E 85 2126021312 225S 364E 90 2126021312 225S 364E 90 2126021312 225S 364E 90 2126021318 233S 361E 90 2126021318 233S 361E 90 2126021318 233S 361E 90 2126021400 241S 359E 100 2126021400 241S 359E 100 2126021400 241S 359E 100 2126021406 249S 360E 95 2126021406 249S 360E 95 2126021406 249S 360E 95 2126021412 258S 366E 90 2126021412 258S 366E 90 2126021412 258S 366E 90 2126021418 266S 379E 85 2126021418 266S 379E 85 2126021418 266S 379E 85 2126021500 267S 386E 85 2126021500 267S 386E 85 2126021500 267S 386E 85 2126021506 267S 393E 85 2126021506 267S 393E 85 2126021506 267S 393E 85 2126021512 264S 401E 80 2126021512 264S 401E 80 2126021512 264S 401E 80 2126021518 260S 410E 80 2126021518 260S 410E 80 2126021518 260S 410E 80 2126021600 254S 415E 70 2126021600 254S 415E 70 2126021600 254S 415E 70 2126021606 249S 420E 60 2126021606 249S 420E 60 2126021612 249S 426E 60 2126021612 249S 426E 60 2126021618 253S 438E 55 2126021618 253S 438E 55 2126021700 267S 447E 50 2126021700 267S 447E 50 2126021706 290S 437E 50 2126021706 290S 437E 50 2126021712 301S 425E 50 2126021712 301S 425E 50 2126021718 315S 421E 50 2126021718 315S 421E 50 NNNN