Southeast Ridge Retreating???

I've been studying those 500 millibar maps. They're not that hard to understand if you know what you're looking for.

Areas of red concentric circles indicates ridging, or areas of high pressure, and blue indicates troughing, or areas of low pressure.

Three outstanding features appear on the current 500 millibar map:

West coast ridging
SE ridge
Icelandic Low

The forecast maps show the SE ridge losing its influence on the U.S. over the next several days.

Colder air should have easier access to the region over the next several days.

Precipitation chances are harder to forecast, though. If we're going to get any exciting winter weather, we'll have to either hope for a robust clipper or a Southwest cutoff low ejecting out toward the Plains or southern U.S.

MS