Rise and shine

One reason for the chilly weather we're getting, aside from the provenance of the cold air, is the fact that the skies are currently clear. That lack of an insulating cloud cover allows more ground heat to dissipate, resulting in cooler morning low temperatures. It also gives us a chance to see the sun.

Clouds and fog typically form at sunrise after a clear, cold night.

I haven't really been paying attention to the winter Olympics this time around. I hear reports and updates and "medal counts" on the news (Gus Kenworthy! Adam Rippon! Bobsled team uniforms! Curling doping scandal -- wtf?) but the games themselves haven't really caught my interest. It'll all be over soon.