Weather Report for September 26, 2014

Rapidly decaying late-afternoon thunderstorm clouds prevented the start of observations until the end of evening twilight and cirrus prevented photometry during the first hour or so of the night. After that, the sky was generally clear and the seeing ranged from 1.0-1.6 arcsec. In the last hour of the night, the humidity rose dramatically close to the dome-closing limit and mid-level clouds started moving in from the east. Observations of the last target continued until mid twilight through clouds.