262100Z POSITION NEAR 15.8N 85.7E. TROPICAL CYCLONE 03B (KYANT), LOCATED APPROXIMATELY 423 NM SOUTH- SOUTHWEST OF CALCUTTA, INDIA, HAS TRACKED WEST-SOUTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A RAPIDLY DETERIORATING SYSTEM THAT HAS LOST MOST OF ITS CONVECTIVE STRUCTURE OVER THE LAST SIX HOURS. A 261559Z METOP-A ASCAT IMAGE SHOWS THE LOW LEVEL CIRCULATION CENTER BECOMING ELONGATED, LENDING FAIR CONFIDENCE TO THE INITIAL POSITION, WITH ONLY 25 KNOT WIND BARBS LOCATED ON THE NORTHEAST PERIPHERY. THE CURRENT INTENSITY OF 30 KNOTS IS BASED ON THE ASCAT IMAGE COMBINED WITH THE LOWER END OF DVORAK ESTIMATES RANGING FROM T2.0 TO 3.0 (30 TO 45 KNOTS). UPPER-LEVEL ANALYSIS SHOWS A POINT SOURCE JUST TO THE EAST OF THE SYSTEM INTRODUCING SOME EASTERLY WIND SHEAR NOT CONDUCIVE FOR REDEVELOPMENT. THE UPPER LEVEL ENVIRONMENT IS EXPECTED TO REMAIN UNFAVORABLE AS THE DEEP-LAYERED RIDE BUILDS ESTABLISHING PREDOMINANT EASTERLY FLOW ALOFT. THE REMNANTS OF TS KYANT IS EXPECTED TO CONTINUE ON A TRACK TO THE WEST-SOUTHWEST ALONG THE SOUTHERN PERIPHERY OF THE BUILDING DEEP-LAYERED RIDGE TO THE NORTHWEST. 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 261800Z IS 12 FEET.
