WTPN31 PGTW 191500 MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL STORM 18W (MEGI) WARNING NR 023 03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 191200Z3 --- NEAR 39.8N0 136.0E0 MOVEMENT PAST SIX HOURS - 050 DEGREES AT 36 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT EXTRATROPICAL RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT REPEAT POSIT: 39.8N0 136.0E0 --- FORECASTS: 12 HRS, VALID AT: 200000Z2 --- 42.0N6 142.4E1 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT EXTRATROPICAL VECTOR TO 24 HR POSIT: 070 DEG/ 27 KTS --- 24 HRS, VALID AT: 201200Z5 --- 43.7N4 149.4E8 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT EXTRATROPICAL VECTOR TO 36 HR POSIT: 075 DEG/ 26 KTS --- 36 HRS, VALID AT: 210000Z3 --- 44.8N6 156.6E8 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT EXTRATROPICAL --- REMARKS: 191500Z6 POSITION NEAR 40.4N8 137.6E7. TROPICAL STORM (TS) 18W (MEGI), LOCATED APPROXIMATELY 240 NM WEST OF MISAWA, JAPAN, HAS TRACKED NORTHEASTWARD AT 36 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 191130Z5 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 45, 55 AND 65 KNOTS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 191200Z3 IS 22 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVPACMETOCCEN). THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. REFER TO TROPICAL STORM 19W WARNINGS (WTPN32 PGTW) FOR SIX- HOURLY UPDATES. REFER TO TROPICAL DEPRESSION 20W WARNINGS (WTPN33 PGTW) FOR SIX-HOURLY UPDATES.// NNNN