WTXS31 PGTW 022100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 11S (IGGY) WARNING NR 009//
RMKS/
1. TROPICAL CYCLONE 11S (IGGY) WARNING NR 009    
   02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   021800Z --- NEAR 16.8S 108.2E
     MOVEMENT PAST SIX HOURS - 250 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 16.8S 108.2E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   030600Z --- 16.8S 106.3E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
022100Z POSITION NEAR 16.8S 107.7E.
02JAN26. TROPICAL CYCLONE 11S (IGGY), LOCATED APPROXIMATELY 469NM
NORTHWEST OF LEARMONTH, AUSTRALIA, HAS TRACKED WEST- SOUTHWESTWARD
AT 06 KNOTS OVER THE PAST SIX HOURS. ANIMATED SHORT WAVE INFRARED
IMAGERY SHOWS AN EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) WITH
NOTHING BUT STRATOCUMULUS WRAPPING AROUND THE CORE. A FEW
TWITCHES OF CONVECTION AT LONG INTERVALS HAVE OCCURRED OVER THE PAST
TWO DAYS BUT THEY COLLAPSE AND FADE QUICKLY.  THE SYSTEM IS CLEARLY
ON LIFE SUPPORT, SUPPORTED ONLY BY THE INDUCED LOW LEVEL VORTICITY
CAUSED BY THE SEASONAL SOUTHEASTERLIES FLOWING ALONG THE EASTERN
SEMICIRCLE OF THE SYSTEM. DRY AIR ASSOCIATED WITH THOSE EASTERLIES
IS WRAPPING INTO THE CORE AND WILL EVENTUALLY BECOME THE PRIMARY
CAUSE OF DEATH, BUT THE LLCC OF IGGY WILL LIKELY REMAIN VISIBLE FOR
ANOTHER DAY OR TWO AS IT SLOWLY AND GRADUALLY EXPIRES.
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. MINIMUM CENTRAL PRESSURE AT 021800Z IS
1005 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 021800Z IS 12 FEET.
REFER TO TROPICAL CYCLONE 09S (GRANT) WARNINGS (WTXS32 PGTW)
FOR TWELVE-HOURLY UPDATES.//
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