TCAR - Typhoon Committee

TCAR
CHAPTER 5 - RESEARCH FELLOWSHIP TECHNICAL REPORT
2006120418 0.0 21.9 - - - - -
2006120500 0.0 - - - - - -
FCST TIMES 36 34 32 30 28 26 24
Average (km) 11.6 75.2 113.1 141.2 167.1 186.7 236.2
Min (km) 0.0 21.9 10.9 22.2 34.2 49.1 34.3
Max (km) 70.8 215.5 289.8 342.8 412.8 463.4 583.5
4.3. TY 0722 PEIPAH
PEIPAH formed as TD on sea water east of
Philippines on 18 UTC 01/11/2007. Moving
westward it upgraded into a TS at 12 UTC
03/11/2007. Keeping westward motion it
gained intensity of STS on 00 UTC 04/11/2007.
It hit Luzon Island on the same day. Passing
Philippines it slowded down and strengthened
into a TY then reached its peak intensity of Vmax
of 70 kts and central Pmin of 970 hPa at 12 UTC
06/11/2007. Then it accelerated and turned to
SW. Further PEIPAH weakened gradually when
moving SW and dissipated as TD over water near
the coastline of southern part of Vietnam. During
05/11/2007 and 06/11/2010 PEIPAH moved very
slowly.
Overally, model forecasts for PEIPAH are good
exept forecasts from initial times of 2007110418
to 2007110518 when it moved very slowly.
Fig.8. Track of TY PEIPAH (0722) and forecasts
of CMA’s typhoon track prediction model. Other
explanations are similar to those in Fig.6.
Table 3. Verification for track forecasts of TY
PEIPAH (0722) ( position errors, km)
2009
287