The statistics of high altitude wind speed data at the tropopause (200mB) above Mt. Maidanak in Uzbekistan are presented. These data were obtained in 1991 at three meteorological stations Kokand, Tashkent and Termez, located around Mt. Maidanak. The data processing show that the high altitude wind speed above Mt. Maidanak is slowly changed with predominant direction from the west. The average value of wind speed at 200 mB for the entire period of observations is 27.0 m/c. The comparison of results with data, obtained at Paranal observatory in Chile shows, that this parameter of atmosphere at Mt. Maidanak is comparably small than above Paranal.
The night-time seeing measurements obtained with the ESO Differential Image Motion Monitor at Mt. Maidanak from August 1996, up to June 1999 are presented. This instrument was also used for seeing estimation at La Silla and Paranal Observatories in Chile in 1988 - 1996. The median value of seeing--(beta) FWHM (the full width at half maximum of a long-exposure stellar image at zenith at (lambda) equals 500 nm) for the entire period of observations is 0.69 arcsec. For the La Silla and Paranal Observatories, this parameter is 0.87 and 0.66 arcsec, respectively.