WTPN31 PGTW 122100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE FINAL WARNING// RMKS/ 1. TROPICAL STORM 04W (MERBOK) WARNING NR 008 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 121800Z --- NEAR 23.0N 114.6E MOVEMENT PAST SIX HOURS - 005 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 045 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT REPEAT POSIT: 23.0N 114.6E --- FORECASTS: 12 HRS, VALID AT: 130600Z --- 24.9N 115.6E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 060 DEG/ 13 KTS --- 24 HRS, VALID AT: 131800Z --- 26.1N 118.2E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 122100Z POSITION NEAR 23.5N 114.9E. TROPICAL STORM (TS) 04W (MERBOK), LOCATED APPROXIMATELY 47 NM NORTH- NORTHEAST OF HONG KONG, HAS TRACKED NORTHWARD AT 09 KNOTS OVER THE PAST SIX HOURS. ANIMATED RADAR IMAGERY FROM HONG KONG INDICATES THAT TS 04W MADE LANDFALL AT 12/14-15Z SHORTLY AFTER THE CENTER PASSED 10NM EAST OF WAGLAN ISLAND (45045), WHICH REPORTED MAXIMUM WINDS OF 54 KNOTS WITH A MINIMUM SLP NEAR 990.3MB. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND RJTD RADAR FIXES SHOW THAT THE SYSTEM HAS CONTINUED TO TRACK FURTHER INLAND AND IS WEAKENING DUE TO LAND INTERACTION AND MODERATE, NORTHERLY VERTICAL WIND SHEAR. TS 04W IS FORECAST TO ROUND THE NORTHWEST PERIPHERY OF THE SUBTROPICAL RIDGE AFTER TAU 12 AND WILL BEGIN TO INTERACT WITH THE MIDLATITUDE WESTERLIES AND STRONG BAROCLINIC ZONE, HOWEVER, THE SYSTEM IS EXPECTED TO DISSIPATE OVER LAND BEFORE COMPLETING EXTRA-TROPICAL TRANSITION. AFTER RE-EMERGING OVER THE EAST SEA (NEAR TAU 36), THE REMNANTS WILL RE-STRENGTHEN AS AN EXTRA-TROPICAL LOW ON THE NEAR- STATIONARY BAIU BOUNDARY, WHICH IS THEN EXPECTED TO TRACK CLOSE TO OKINAWA BY TAU 48. 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 121800Z IS 12 FEET.//