Now The Fog

Okay, the melt down begins. Temperatures are going above freezing here's a couple of observations. The first is that many times when snow melts quickly it is not pretty. Many times you have fog when you see a rapid warm up like this one. The other problem and this is always something in the back of my mind when we forecast a rapid increase in temperatures with this much snow on the ground and that is an inversion. What is an inversion? When air in the atmosphere is the opposite of what we normally see. Of course because there are less molecules or some like to say less atmosphere as you travel upward air is much colder even a few hundred feet up. Well, with an inversion temperatures above the surface are warmer, trapping cold air at the surface. With an inversion you can also see very little flux between day and night temperatures. We will see how this situation pans out. One thing is for sure an inversion is a great way to BUST a forecast. One of the reasons for this is that there is no balloon launch and data from the National Weather Service. So the seeing an inversion is difficult at best. This is a wait and see thing I guess. Here's a few pictures from out Weatherbug cameras this morning.