WTPS32 PGTW 132100

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//

SUBJ/TROPICAL CYCLONE 12P (TATIANA) WARNING NR 007 RELOCATED//

RMKS/

1. TROPICAL CYCLONE 12P (TATIANA) WARNING NR 007 RELOCATED

   02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   131800Z --- NEAR 25.5S 159.8E

     MOVEMENT PAST SIX HOURS - 200 DEGREES AT 17 KTS

     POSITION ACCURATE TO WITHIN 060 NM

     POSITION BASED ON CENTER LOCATED BY SATELLITE

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER

   REPEAT POSIT: 25.5S 159.8E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   140600Z --- 25.8S 158.8E

   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER

    ---

REMARKS:

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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