Clouds will likely obscure it, but there's an odd full moon set to rise over Baltimore at 4:53 p.m. EST today. Sometimes called the Old Moon, or the Moon After Yule, this one is also the second full moon of the month, which has come to be called a Blue Moon. It would not qualify under an older tradition that reserved the name for the third full moon in a season with four. Earth's shadow will partially eclipse the moon beginning just before 2 p.m. EST. Alas, the eclipse won't be visible from Maryland.