Good Sunday, everyone. Flooding continues to be a concern along some of the rivers and bigger streams, but the focus is now fully on a developing winter storm. This will impact parts of Kentucky and, given the latest model trends, we are going straight to a Winter Storm THREAT for the southeast.

The THREAT is for the potential for 4″ or more of snow. If my confidence increases today, I will upgrade this to a Winter Storm ALERT and I suspect that will be the case.

Here are some headlines:

  • A cold front is working through the region today with much colder air crashing in behind it.
  • Areas of eastern Kentucky will likely be in the 50s early today before the numbers tank later this afternoon.
  • A band of light rain and light snow develops across western Tennessee and Kentucky this morning, and this expands eastward.
  • The exact track of the low is the determining factor on how much snow falls and exactly where this happens.
  • The best chance for accumulating snow is across the south and southeast.
  • Accumulating snows will fall all the way into the deep south as this turns into a major snowstorm through the Mid-Atlantic states.
  • Much of the accumulating snows in Kentucky will be on grassy and elevated surfaces as snowfall rates fight a warm and wet ground. Snowfall rates will always win the battle.

My first First Call For Snowfall of the season is here…

This is a conservative forecast based on the latest guidance, but I have a few more updates to go through later today before we get to the Last Call.

The HRRR was the most aggressive model out of the gate, but now it has friends. Here’s the latest HRRR…

The GFS has joined in on the fun…

The GFS Ensembles are very enthusiastic…

The RAP has a similar look…

The Short Range Ensembles are in agreement…

The Canadian isn’t as robust, but still has the same areas getting snow…

The EURO is similar to the Canadian…

The NAM fam of models were totally whiffing on this system with earlier model runs, but the evening runs discovered it…

NAM

Hi Res NAM

From here, we focus quickly on the next system moving in here by Thursday. An arctic front pushes in Wednesday and has a system diving in right behind it for Thursday into Friday. This is looking more and more like it can become a decent snow maker for much of our region…

Canadian

EURO

I will have multiple updates through the day, so check back. I leave you with your radars to track the early day rains and the blossoming band of snow across west Tennessee and western Kentucky…

Have a great day and take care.