WTPN31 PGTW 310300 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL STORM 01W (EWINIAR) WARNING NR 026 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 310000Z --- NEAR 32.8N 139.7E MOVEMENT PAST SIX HOURS - 040 DEGREES AT 15 KTS POSITION ACCURATE TO WITHIN 025 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 EXTRATROPICAL RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT REPEAT POSIT: 32.8N 139.7E --- FORECASTS: 12 HRS, VALID AT: 311200Z --- 36.3N 145.7E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT --- REMARKS: 310300Z POSITION NEAR 33.7N 141.2E. 31MAY24. TROPICAL STORM 01W (EWINIAR), LOCATED APPROXIMATELY 150 NM SOUTH OF YOKOSUKA, JAPAN, HAS TRACKED NORTHEASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL IMAGERY (MSI) DEPICTS A FULLY EXPOSED AND ASYMMETRIC LLCC WHICH IS SHOWING FRONTOGENESIS. A CIMSS TOTAL PRECIPITABLE WATER LOOP CONFIRMS THE FRONTAL DEVELOPMENT AND SHOWS DRY CONTINENTAL POLAR AIR CUTTING INTO THE VORTEX FROM THE SOUTHWEST. ANALYSIS INDICATES THE SYSTEM HAS ENTERED THE BAROCLINIC ZONE OVER 22C SEA WATER AND 40-45KTS OF VERTICAL WIND SHEAR. TS 01W IS UNDERGOING EXTRATROPICAL TRANSITION AND IS EXPECTED TO BECOME A GALE FORCE COLD CORE LOW BY TAU 12. 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 310000Z IS 995 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 310000Z IS 23 FEET. // NNNN