WTPN31 PGTW 270300 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL DEPRESSION 18W (CIMARON) WARNING NR 011// RMKS/ 1. TROPICAL DEPRESSION 18W (CIMARON) WARNING NR 011 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 270000Z --- NEAR 28.6N 132.1E MOVEMENT PAST SIX HOURS - 035 DEGREES AT 05 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 28.6N 132.1E --- FORECASTS: 12 HRS, VALID AT: 271200Z --- 29.8N 133.1E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 045 DEG/ 09 KTS --- 24 HRS, VALID AT: 280000Z --- 31.1N 134.5E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 270300Z POSITION NEAR 28.9N 132.4E. 27SEP24. TROPICAL DEPRESSION 18W (CIMARON), LOCATED APPROXIMATELY 297 NM SOUTH-SOUTHEAST OF SASEBO, JAPAN, HAS TRACKED NORTHEASTWARD AT 05 KNOTS OVER THE PAST SIX HOURS. THE LOW-LEVEL CIRCULATION CENTER (LLCC) HAS STARTED TO BECOME ELONGATED AND BECOME ABSORBED WITHIN THE FRONTAL BOUNDARY RUNNING PARALLEL TO JAPAN. 18W IS FORECAST TO BEGIN TRACKING MORE QUICKLY NORTHEASTWARD AS IT DROPS BELOW TROPICAL DEPRESSION STRENGTH DUE TO INCREASING VERTICAL WIND SHEAR ERODING THE LLCC. THERE MAY BE ADDITIONAL VORTICIES THAT SPIN UP ALONG THE FRONTAL BOUNDARY, HOWEVER THE PRIMARY CIRCULATION ASSOCIATED WITH 18W IS EXPECTED TO DISSIPATE. 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 270000Z IS 1005 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 270000Z IS 10 FEET. REFER TO TROPICAL STORM 19W (NINETEEN) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN