Weather Report for April 8, 2011

The night started poorly as the mountain decided to create its own cloud cover for 2-3 hours. After that, the sky was generally clear. The seeing varied over a large range (1.2-3 arcsec). The humidity stayed just low enough throughout the night that operations could continue. The advertised winter-like storm continues to inch its way towards southeast Arizona, threatening an early finish to the observing campaign.