230300Z POSITION NEAR 38.6N 143.6E. TYPHOON (TY) 25W (LAN), LOCATED APPROXIMATELY 187 NM SOUTH OF MISAWA, JAPAN, HAS TRACKED NORTHEASTWARD AT 36 KNOTS OVER THE PAST SIX HOURS. TY 25W IS ASSESSED AS AN EXTRA-TROPICAL CYCLONE AND HAS CONTINUED TO RAPIDLY ACCELERATE NORTHEASTWARD. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS A WELL-DEFINED FRONTAL STRUCTURE WITH AN EXPOSED, BROAD CENTER AND RAPIDLY DECAYING DEEP CONVECTION SHEARED TO THE NORTHEAST. TY 25W WILL CONTINUE TO ACCELERATE NORTHEASTWARD WITHIN THE MIDLATITUDE WESTERLY FLOW BUT IS FORECAST TO MAINTAIN STORM-FORCE WINDS. 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 230000Z IS 28 FEET. REFER TO TROPICAL DEPRESSION 27W (TWENTYSEVEN) WARNINGS (WTPN33 PGTW) FOR SIX-HOURLY UPDATES.