Weather Report for November 30, 2013

A narrow plume of moderate-to-heavy cirrus that stretches more than a 1000 miles to the southwest stayed pretty much centered on the observatory all night as it moved past from the southwest to the northeast. Observations were made through this muck all night long and around a dozen blazars were measured for polarization, although usually at a degraded S/N than is normal for this program. The seeing roamed between 1 and 1.5 arcsec.