WTPN33 PGTW 192100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 16W (NANMADOL) WARNING NR 029// RMKS/ 1. TROPICAL STORM 16W (NANMADOL) WARNING NR 029 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 191800Z --- NEAR 37.4N 137.1E MOVEMENT PAST SIX HOURS - 060 DEGREES AT 26 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 260 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 290 NM NORTHWEST QUADRANT REPEAT POSIT: 37.4N 137.1E --- FORECASTS: 12 HRS, VALID AT: 200600Z --- 39.0N 141.8E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 200 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 200 NM SOUTHWEST QUADRANT 175 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 055 DEG/ 22 KTS --- 24 HRS, VALID AT: 201800Z --- 41.5N 146.5E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 192100Z POSITION NEAR 37.8N 138.3E. 19SEP22. TROPICAL STORM (TS) 16W (NANMADOL), LOCATED APPROXIMATELY 263 NM SOUTHWEST OF MISAWA, JAPAN, HAS TRACKED EAST-NORTHEASTWARD AT 26 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY, A 191852Z SSMIS 91GHZ IMAGE AND RADAR IMAGERY INDICATE THAT THE SYSTEM HAS COMPLETED EXTRA-TROPICAL TRANSITION WITH A BROAD, POORLY-DEFINED LOW-LEVEL CIRCULATION ABSORBED WITHIN THE FRONTAL BAND, WHICH EXTENDS TO THE SOUTHWEST OVER CENTRAL HONSHU AND TO THE NORTHEAST INTO NORTHERN HONSHU AND HOKKAIDO. THE INITIAL POSITION IS BASED ON A 191700Z RJTD RADAR FIX AS WELL AS SURFACE OBSERVATIONS FROM WAJIMA (37.4N 136.9E). AS THE SYSTEM CENTER TRACKED OVER WAJIMA, THE WINDS SWITCHED FROM SOUTHERLY AT 16 KNOTS AT 191600Z TO NORTHERLY AT 37 KNOTS WITH A MINIMUM SLP OF 987.2MB. THE INITIAL INTENSITY OF 45 KNOTS IS EXTRAPOLATED FROM RECENT ASCAT DATA, WHICH SHOWED A SMALL PATCH OF 50 KNOTS OVER THE NORTHWEST QUADRANT OF THE SYSTEM, BUT IS HEDGED ABOVE AN RJTD DVORAK INTENSITY ESTIMATE OF T2.5 (35 KNOTS). TS 16W IS EMBEDDED WITHIN THE MIDLATITUDE WESTERLIES NEAR THE JET AND IS TRACKING EAST-NORTHEASTWARD ALONG THE NORTHWESTERN FLANK OF A DEEP-LAYERED SUBTROPICAL RIDGE. THE SYSTEM WILL CONTINUE TRACKING EAST-NORTHEASTWARD AS A COLD-CORE, EXTRATROPICAL LOW THROUGH TAU 24 WITH STEADY WEAKENING DUE TO STRONG VERTICAL WIND SHEAR (40-60 KNOTS) AND FRICTIONAL EFFECTS. NUMERICAL MODEL GUIDANCE IS IN FAIR AGREEMENT WITH MANY MODELS INDICATING THE SYSTEM WILL DISSIPATE OVER THE NEXT 12 HOURS ALONG THE FRONTAL BOUNDARY. 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 191800Z IS 22 FEET.// NNNN