Good morning NBC Action Weather Bloggers,
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A deep trough in the upper levels of the atmosphere will be digging into the central United Stated during the next 48 hours. This will bring a strong cold front through by Wednesday. And, there is a chance of some snow. The trend on the last few model runs is in the direction of some minor accumulations on Wednesday afternoon, but it depends on a wave that tries to split off from the main trough. Look below at the 500 mb forecast from the GFS valid at 6 AM Wednesday. I placed an arrow pointing at the disturbance splitting off.

This disturbance is important as it keeps the flow out of the southwest aloft after the cold front moves through. Look below at the surface forecast for Wednesday evening at 6 PM. This shows the band of 0.10" to 0.20" liquid forecast to form right over our local area. The thickness, the dotted lines are thickness lines, is down to almost 528 decameters. The 540 line is usually the snow/rain changeover line, so it is without a doubt cold enough for it to all be snow behind this front.

A low is also forming in the Gulf of Mexico. This is forming in response to that wave and the deepening trough as well. This low will take over and as the cold air catches up with the developing surface low. a storm is likely over the eastern United States later this week.
Will this wave splitting off track perfectly to allow us to have the Wednesday snow? This is a big question still. The trend has been for a better chance of snow. If it is any weaker then we could be left with just clouds and cold. We will update the blog later today.
Have a fantastic start to the week.
Gary