Cold and clear in the small hours, the air feeling near 10°F below zero with a light wind. Snow began after dawn. Through the morning the air warmed a little to near 13° by late morning, and then the wind came in hard and the cold fell off a cliff, near 28° below zero by early afternoon with gusts past 60 mph. White and wild. The evening held near 30° below zero in a wind that never let go.