Weather Report for July 26, 2014

A major thunderstorm hit Kitt Peak in the middle of the afternoon. By midnight, the sky was clear enough to open the dome. Clouds continued to rapidly form and dissipate around the mountain until just before morning twilight, when the sky completely cleared. The marginal conditions forced a few brief dome closures, but about a half dozen blazars were observed during the night. The seeing was 1.3-1.7 arcsec.