The low pressure system that brought all of the clouds during the previous
night ejected out of Arizona as fast as any storm system that I've ever seen.
This left very clear skies for observing, though the temperatures were at
least 15 degrees colder than earlier in the campaign. However, the seeing
was not as bad as expected after such a turbulent day, at 1.5-2.5 arcsec.
A good, productive night.