Two thunderstorms hit Kitt Peak during the daylight hours, giving us some
much needed rain (and some hail). By 2230 local time, the sky was in pretty
good shape and the thunderstorm complex had moved far enough to the north
that work could begin. The sky remained mostly clear until around 0200 and
then began to quickly deteriorate. Most of the last 1.5 hours of the night
was lost to thickening clouds. The seeing during the useful part of the night
was excellent (1-1.4 arcsec) and more than a half dozen blazars were observed.
Unlike during past nights, photometry could be obtained for several targets.