This post is not so much about cloud formations as it is about what forms in the clouds this time of year in our part of the world. Sunday we got about 8 inches (20 mm) of snow. Tuesday we got another few inches. Our winter weather is determined by which way the wind blows. If it blows from Canada we get cold and sometimes the moisture makes it across the mountains and we get snow. If the wind blows from Florida, we get warm. This time the wind blew from Canada all the way to Texas and the Gulf of Mexico, picked up a load of moisture and did a U-turn around the mountains and north up the coast. These storms left slippery roads and closed airports over a wide area. Some power outages in the DC, Maryland and Virginia area were caused by falling branches.
Morning of December 8 just starting to snow
Afternoon, snow everywhere
More snow Tuesday
And the clouds break ranks in time for sunset