WTPN31 PGTW 172100 COR
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
REF/A/NAVPACMETOCCEN PEARL HARBOR HI/171251ZSEP2003//
AMPN/TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. TROPICAL DEPRESSION 16W (CHOI-WAN) WARNING NR 001A CORRECTED    
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   171800Z7 --- NEAR 20.6N8 129.4E6
     MOVEMENT PAST SIX HOURS - 315 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   REPEAT POSIT: 20.6N8 129.4E6
    ---
   FORECASTS:
   12 HRS, VALID AT:
   180600Z5 --- 21.7N0 128.3E4
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   VECTOR TO 24 HR POSIT: 320 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   181800Z8 --- 22.5N9 127.6E6
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   RADIUS OF 034 KT WINDS - 045 NM 
   VECTOR TO 36 HR POSIT: 350 DEG/ 05 KTS
    ---
   36 HRS, VALID AT:
   190600Z6 --- 23.5N0 127.4E4
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 034 KT WINDS - 065 NM 
   VECTOR TO 48 HR POSIT: 360 DEG/ 04 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   191800Z9 --- 24.2N8 127.4E4
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 030 NM 
   RADIUS OF 034 KT WINDS - 085 NM 
   VECTOR TO 72 HR POSIT: 040 DEG/ 03 KTS
    ---
   72 HRS, VALID AT:
   201800Z1 --- 25.1N8 128.2E3
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 050 NM 
   RADIUS OF 034 KT WINDS - 115 NM 
    ---
REMARKS:
172100Z1 POSITION NEAR 20.9N1 129.1E3.
TROPICAL DEPRESSION (TD) 16W, LOCATED APPROXIMATELY 250 NM
SOUTH-SOUTHEAST OF NAHA, OKINAWA, HAS TRACKED NORTHWESTWARD AT 08
KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON
171730Z9 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING
INTENSITY IS BASED SATELLITE CURRENT INTENSITY ESTIMATES OF 25 AND
30 KNOTS. THE LOCATION OF THE LOW LEVEL CIRCULATION CENTER IN THE
REVERSE ORIENTED MONSOON TROUGH IS STILL VERY UNCERTAIN. A PASSING
SHORTWAVE TROUGH TO THE NORTH IS CURRENTLY IMPROVING OUTFLOW AND
ENHANCING INTENSIFICATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
171800Z7 IS 10 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA
HEIGHT INFORMATION. THIS WARNING SUPERSEDES AND CANCELS REF A
WTPN22 PGTW 171300 COR. NEXT WARNINGS AT 180300Z2, 180900Z8,
181500Z5 AND 182100Z2. JUSTIFICATION FOR COR: CORRECTED DIRECTION
OF MOVEMENT IN REMARKS.//

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