We have an interesting forecast dilemma I wanted to share with you tonight. We're looking at a clear sky develop across central Oklahoma as dry air moves east; however, warm air is moving overhead, and we've had precipitation lead to a damp ground, so will our area actually clear overnight?

Here's the RUC's analysis of the relative humidity at 925 mb, or roughly 2,000 feet at 3 a.m. Notice the high RH values move east of our area, indicating the low clouds moving out.



The problem with this solution is the warm air moving in aloft. Here is a sounding for 6 a.m. Saturday morning. Notice how the red line jogs out to the right; this is an indication of an inversion, or warmer air overriding colder air at the surface. The warm air aloft acts like a lid, which tends to hold the moisture and the low clouds from eroding.

My thought is that we will see the clouds overnight, and then expect a clearing late tomorrow morning.