132100Z POSITION NEAR 25.6S 159.5E. TROPICAL CYCLONE (TC) 12P (TATIANA), LOCATED APPROXIMATELY 386 NM EAST-NORTHEAST OF BRISBANE, AUSTRALIA, HAS TRACKED SOUTH- SOUTHWESTWARD AT 17 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS A SWATH OF DISORGANIZED DEEP CONVECTION QUICKLY MOVING TO THE SOUTH-SOUTHEAST, WITH A WEAK AND ELONGATED CIRCULATION TRAILING BEHIND. THE LATEST CIMMS VERTICAL WIND SHEAR (VWS) PRODUCT INDICATES TC 12P IS IN AN AREA OF VERY HIGH (50 KNOT) VWS, RESULTING IN A DECOUPLING OF THE LOW LEVEL CIRCULATION CENTER (LLCC) FROM THE DEEP CONVECTION. A REVIEW OF AVAILABLE SATELLITE IMAGERY OVER THE PAST TWELVE HOURS INDICATES THAT TC 12P HAD SIGNIFICANTLY ACCELERATED. THE CURRENT POSITION IS BASED ON MULTIPLE AGENCY FIXES AND SUPPORTED BY A 131639Z SSIMS 37GHZ IMAGE WITH WEAK BANDING SURROUNDING AN ELONGATED BUT DEFINED CENTER. THE INTENSITY IS ASSESSED AT 35 KNOTS, WHICH PARTIALLY TAKES INTO ACCOUNT WINDS ASSOCIATED WITH THE DEEP CONVECTION ABOUT 60 NM TO THE SOUTH. THE LLCC IS FORECAST TO TURN WESTWARD AS STEERING TRANSITIONS TO THE LARGE-SCALE LOW LEVEL FLOW, AFTER WHICH THE REMNANTS WILL TRACK OFF TO THE NORTH-NORTHWEST BEYOND THIS FORECAST PERIOD. 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 131800Z IS 10 FEET. REFER TO TROPICAL CYCLONE 11P (WINSTON) WARNINGS (WTPS31 PGTW) FOR TWELVE-HOURLY UPDATES. JUSTIFICATION FOR RELOCATION: RELOCATED INITIAL POSITION OF TC 12P BASED ON NEWLY AVAILABLE SSMIS MICROWAVE DATA.
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