Weather Report for November 21, 2014

The long awaited Fermi/Steward observing campaign 66 kicks off with a less than perfect night at the Kuiper Telescope. Cirrus moved in over southern Arizona during the late afternoon in advance of a storm system forecast to hit the area tomorrow. From the start of the night to around 2200 local time, the cirrus thickened steadily, making observations more difficult and time consuming. However, during the middle fours hours night, the sky was remarkably clear as a relatively large break in the cloud formations moved overhead. Conditions steadily worsened after 0200 local time and useful observations ended close to the beginning of morning twilight. The seeing was reasonable during the entire night (1.3-1.5 arcsec). Over a dozen blazars were successfully observed.