WTXS31 PGTW 102100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 21S (OLGA) WARNING NR 021//
RMKS/
1. TROPICAL CYCLONE 21S (OLGA) WARNING NR 021
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   101800Z --- NEAR 21.2S 114.6E
     MOVEMENT PAST SIX HOURS - 215 DEGREES AT 10 KTS
     POSITION ACCURATE TO WITHIN 010 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
     SATELLITE, RADAR, SYNOPTIC DATA AND EXTRAPOLATION
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 21.2S 114.6E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   110600Z --- 22.4S 113.6E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 24 HR POSIT: 230 DEG/ 04 KTS
    ---
   24 HRS, VALID AT:
   111800Z --- 22.9S 112.9E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
102100Z POSITION NEAR 21.5S 114.3E.
10APR24. TROPICAL CYCLONE 21S (OLGA), LOCATED APPROXIMATELY 72 NM
NORTH-NORTHEAST OF LEARMONTH, AUSTRALIA, HAS TRACKED SOUTHWESTWARD
AT 10 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED
SATELLITE IMAGERY SHOWS A RAGGED LOW LEVEL CIRCULATION (LLC) THAT IS
FULLY EXPOSED AND VOID OF ANY DEEP CONVECTION. THE INITIAL POSITION
IS PLACED WITH HIGH CONFIDENCE BASED ON THE EXPOSED LLC. THE INITIAL
INTENSITY OF 30KTS, WHICH IS NOW BELOW THE JTWC WARNING THRESHOLD IS,
ALSO PLACED WITH HIGH CONFIDENCE BASED ON OVERALL ASSESSMENT OF AGENCY
DVORAK ESTIMATES AND FROM NEARBY SURFACE OBSERVATIONS INCLUDING WIND
AND SLP REPORTS FROM THEVENARD ISLAND, 27NM TO THE SOUTHEAST. 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 101800Z IS 1007 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 101800Z IS 10 FEET.//
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