Weather Report for September 12, 2012

The bad news is that again all attempts to observe tonight were thwarted by high humidity and water dripping from the dome. Conditions were mostly clear after midnight, but the humidity stayed well over the safe operating limit (90%) until nearly 0400 local time and the outside surfaces of the dome were still dripping water at the start of morning twilight, making it very risky to open the dome slit shutters. This risk was clearly not worth the short amount of time (about an hour) that observations could be made.

The good news is that the unprecedented wet air mass that has prevented observations for nearly a week is finally moving out of Arizona. There should be a decent chance of getting on the sky tomorrow night for a reasonable amount of time. How much time will depend on the amount of moisture left from the exiting weather system to build afternoon thunderstorms.