WTPN33 PGTW 080300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 12W (HAIKUI) WARNING NR 022
   DOWNGRADED FROM TYPHOON 12W
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   080000Z --- NEAR 29.7N 121.3E
     MOVEMENT PAST SIX HOURS - 315 DEGREES AT 09 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   REPEAT POSIT: 29.7N 121.3E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   081200Z --- 30.6N 119.6E
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 24 HR POSIT: 300 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   090000Z --- 31.1N 118.6E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 36 HR POSIT: 290 DEG/ 03 KTS
    ---
   36 HRS, VALID AT:
   091200Z --- 31.3N 118.0E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
080300Z POSITION NEAR 29.9N 120.9E.
TROPICAL STORM 12W (HAIKUI), LOCATED APPROXIMATELY 95 NM SOUTH OF
SHANGHAI, CHINA, HAS TRACKED NORTHWESTWARD AT 09 KNOTS OVER THE PAST
SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND RADAR
IMAGERY INDICATE THAT TS 12W MADE LANDFALL AROUND 07/20Z AND HAS
CONTINUED TO TRACK SLOWLY INLAND WHILE WEAKENING SLIGHTLY. PRIOR TO
MAKING LANDFALL, SURFACE OBSERVATIONS FROM DACHEN DAO AND SHIPU
SHOWED MAXIMUM SUSTAINED WINDS OF 64 TO 70 KNOTS WITH MINIMUM SLP
NEAR 970 MB. THE INITIAL POSITION IS BASED ON THE PGTW FIX AND RADAR
WITH GOOD CONFIDENCE. THE INITIAL INTENSITY IS BASED ON DVORAK
ESTIMATES RANGING FROM 55 TO 65 KNOTS. TS 12W IS FORECAST TO
CONTINUE TRACKING WEST-NORTHWESTWARD TO NORTHWESTWARD THROUGH THE
PERIOD AND WILL DISSIPATE OVER LAND BY TAU 36. THERE IS HIGH
CONFIDENCE IN THE FORECAST TRACK BASED ON THE TIGHTLY-GROUPED
DYNAMIC MODELS. AFTER TAU 48, THERE IS A LOW PROBABILITY OF THE
REMNANTS TRACKING BACK OVER THE EAST CHINA SEA; HOWEVER,
REGENERATION AS A TROPICAL CYCLONE IS UNLIKELY DUE TO MIDLATITUDE
WESTERLIES STRENGTHENING OVER THE EAST CHINA SEA. 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.
REFER TO TROPICAL STORM 13W (THIRTEEN) WARNINGS (WTPN31 PGTW) FOR
SIX-HOURLY UPDATES.//