A major pattern change will occur this week this week bringing heavy rain and heavy snow at higher elevations.  Above are forecast rain and the moisture content of snow for this week. The amounts will likely be sufficient for localized flooding in the areas where it is not in the form of snow -- especially in California.  Below are the forecast snow amounts for the week. If these forecasts are correct, it means that the snowpack will be greatly improved infall of these areas.  A cold front the first of the week will usher all of this in. Here is a timing forecast. Please take these forecasts seriously and factor them into your plans. 

As wind farms continue to grow, meteorologists lose our ability to see storms in more and more areas. This is the Vance AFB radar during last Monday afternoon's snow. Where you see black, that is the ground clutter system attempting to deal with regular ground cutter and wind farms. The latter is nearly impossible to deal with.  And, yes, if it was an approaching tornado, we would not be able to see it. 

This is the accumulation to 6pm CST.