In reply again to #2283:
The upper winds measured by weather balloons launched by the Kota Bharu weather station are different from the ones calculated by NOAA Hysplit.
(
University of Wyoming - Radiosonde Data )
Kota Bharu Mar 7, 12Z sounding:
FL350: 020 deg at 10 kn.
FL230: 060 deg at 23 kn.
FL164: 095 deg at 16 kn.
Kota Bharu Mar 8, 00Z sounding:
FL350: 020 deg at 15 kn.
FL230: 090 deg at 17 kn.
FL164: 100 deg at 24 kn.