250300Z POSITION NEAR 26.9S 58.0E. TROPICAL CYCLONE (TC) 16S (HARUNA), LOCATED APPROXIMATELY 360 NM SOUTH-SOUTHWEST OF LA REUNION, HAS TRACKED EAST-NORTHEASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS AN EXPOSED LOW-LEVEL CIRCULATION CENTER WITH NO DEEP CONVECTION. A 242151Z AMSU IMAGE DEPICTS BROAD, SHALLOW CONVECTIVE BANDING WRAPPING INTO A WEAK LLCC. A 241751Z ASCAT IMAGE SHOWED ONLY 30 TO 35 KNOT WINDS OVER THE WESTERN SEMI-CIRCLE. TC 16S IS EMBEDDED WITHIN AN UPPER-LEVEL SUBTROPICAL SHORTWAVE TROUGH AND APPEARS TO BE A SUBTROPICAL SYSTEM WITH A DRY SLOT WRAPPING AROUND AND INTO THE LLCC IN THE LATEST TOTAL PRECIPITABLE WATER IMAGERY. THE SYSTEM IS EXPECTED TO WEAKEN BELOW 35 KNOTS BY TAU 12 WHILE TRACKING EAST- NORTHEASTWARD. THE REMNANTS ARE FORECAST TO TRACK WESTWARD AS A STRONG HIGH BUILDS SOUTH OF THE SYSTEM. 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 250000Z IS 13 FEET.
- JTWC + Eumetsat
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