MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TYPHOON 26W (MEARI) WARNING NR 019 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 070600Z --- NEAR 29.2N 148.1E MOVEMENT PAST SIX HOURS - 025 DEGREES AT 25 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 165 NM SOUTHWEST QUADRANT 165 NM NORTHWEST QUADRANT REPEAT POSIT: 29.2N 148.1E --- FORECASTS: 12 HRS, VALID AT: 071800Z --- 31.9N 150.1E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 050 KT WINDS - 185 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 370 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 235 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 050 DEG/ 19 KTS --- 24 HRS, VALID AT: 080600Z --- 34.4N 153.5E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 370 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 200 NM SOUTHWEST QUADRANT 205 NM NORTHWEST QUADRANT --- REMARKS: 070900Z POSITION NEAR 29.9N 148.6E. TYPHOON (TY) 26W (MEARI), LOCATED APPROXIMATELY 561 NM SOUTHEAST OF YOKOSUKA, JAPAN, HAS TRACKED NORTH-NORTHEASTWARD AT 25 KNOTS OVER THE PAST SIX HOURS. WATER VAPOR IMAGERY SHOWS THAT THE MID-LATITUDE TROUGH APPROACHING FROM THE WEST HAS FULLY ENGULFED TY MEARI. A 070600Z SSMIS 91GHZ MICROWAVE IMAGE DEPICTS DRY AIR ENTRAINING THE CYCLONE FROM THE SOUTHERN PERIPHERY WITH ALL REMAINING CONVECTION SHEARED TO THE NORTH. THE CONVECTIVE STRUCTURE IS ELONGATED TO THE NORTHEAST AND HAS BECOME FRONTAL, INDICATING EXTRA-TROPICAL TRANSITION (ETT). TY 26W WILL CONTINUE TO WEAKEN AS IT ACCELERATES NORTHEASTWARD, EMBEDDED WITHIN THE MID-LATITUDE WESTERLY FLOW. THE WIND FIELD WILL CONTINUE TO BROADEN AS IT COMPLETES ETT AS A STRONG COLD-CORE LOW. 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 070600Z IS 25 FEET. // NNNN NNNN