WTPN31 PGTW 201500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 28W (RAI) WARNING NR 031A AMENDED//
RMKS/
1. TROPICAL STORM 28W (RAI) WARNING NR 031A AMENDED
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   201200Z --- NEAR 18.8N 112.5E
     MOVEMENT PAST SIX HOURS - 055 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 025 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
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            000 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   REPEAT POSIT: 18.8N 112.5E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   210000Z --- 19.9N 114.0E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 24 HR POSIT: 065 DEG/ 09 KTS
    ---
   24 HRS, VALID AT:
   211200Z --- 20.7N 115.8E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
201500Z POSITION NEAR 19.1N 112.9E.
20DEC21. TROPICAL STORM 28W (RAI), LOCATED APPROXIMATELY 231 NM
SOUTH-SOUTHWEST OF HONG KONG, HAS TRACKED NORTHEASTWARD AT 08 KNOTS
OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 201200Z 
IS 12 FEET. NEXT WARNINGS AT 202100Z, 210300Z AND 210900Z.
JUSTIFICATION FOR AMENDMENT: AMENDED INITIAL INTENSITY TO 35KTS.//
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