For us, a storm riding up the east coast often means trouble. When this happens, a lot of moisture is being pumped into the system from the Atlantic. If cold temperatures are in place, the result can be a major winter storm. This Accufacts file explains how it's created. Fog forms in several ways.
Advection fog involves very moist low level air moving over cold ground.
As the ground cools the air to the condensation point, fog begins to form. Unlike radiation fog which develops late at night and dissipates during the day, advection fog can hang around the entire day. A significant and rare astronomical event is coming next week. This Accufacts file gives us a preview. On Wednesday December 22nd, three significant events will take place simultaneously.