Cold shifts west as storm moves to the east

First major winter cyclone is now forming across the Oklahoma panhandle and will race off to the northeast later tonight. As showers and thunderstorms some severe will break out this evening from parts of Oklahoma, Texas, Arkansas, Louisiana and Missouri. Snow will also begin to form across the Central Plains as the arctic cold front continues to push south. No real big changes on the track or snowfall predictions as snowfall wise. Here is the latest NAM snowfall Prediction for the next 84 hours. (Click on picture to make bigger)

Now beyond this period like mentioned in the previous blog is that the extreme cold in the East is going to ease up. As the mean trough shifts west for a week or so only building and damning up the extreme cold air. This will charge down the Plains by Sunday and Monday placing temperatures across the Plains 10 to possibly 25 degrees below normal. For instance here in Lawton the GFS MOS is predicting a high temperature of 54 degrees. I think the cold air is so dense with nothing really to stop it. That it quickly charges south on Sunday and Monday that the cold front is knocking on south Texas. So Lawton's high temperatures will likely be in the lower to middle 30s Monday afternoon. This is just an example of the models under doing the cold dense air just like last weeks cold outbreak( ie. Omaha). The brutal cold air will eventually shift East out of the Plains by around the 20th. Here is the latest EURO model that is handling the push to the south of the cold air. (Click on Picture to make bigger)