It's a little hazy outside

While it likely won't persist through the remainder of the week, the fog/haze has been around for the past couple of days.  This is almost always to be expected in the winter with snow on the ground and some sort of southerly wind.

This is the upper air sounding from Davenport, IA from this morning.  The red line is the temperature profile and the green line is the dew point.  Notice how both lines are fairly close to each other (indicating that moisture is present in the lower levels of the atmosphere) but also how they increase in temperature with height.  This means that our southerly wind is helping to push our temperatures warmer a couple thousand feet above which doesn't allow our air to mix.  This is known as an inversion.  Sometimes we can break down the inversion throughout the day, but with the snow on the ground and a southerly wind all we're doing is adding a little more moisture to the atmosphere.  Now once we can get some dry air in place (which I'm hoping is tomorrow) we will begin to feel like our head isn't in a cloud all day long.