Good evening Tennessee Valley and a very happy Saturday! Under mostly sunny skies temperatures finally warmed up this afternoon. Officially at HSV we saw a high of 50 degrees. This was a common theme across the Tennessee Valley with almost everyone making it into at least the upper 40s. Despite the passage of a very small system tomorrow I have gone ahead and taken out almost any chance of precipitation and even increased the amount of sunshine for Sunday. Temperatures will once again finish the day in the lower 50s. With an increase in Southerly flow Monday will be very similar but warmer into the mid and even upper 50s.
Everything changes on Tuesday where we could see some decent snow in the Tennessee Valley. A strong Arctic cold front will come through Monday night and very early Tuesday morning. This will first bring a little bit of light rain, but that light rain will quickly transition over to snow west to east beginning before sunrise. By the morning commute almost the entire Tennessee Valley will likely be seeing snow. The band of snow (heavy at times) will hang out with us all morning and exit the area west to east in the late morning early afternoon 9 AM – 12 PM timeframe. From there the sunshine should make a return to the area, but temperatures will be very cold. The forecast high for Tuesday is only 32 degrees.
The main impacts from this event will be the morning commute on Tuesday and then I also believe the Wednesday morning commute could be rough depending on the amount of sunshine we see Tuesday afternoon and its ability to dry the pavement before refreeze Tuesday night and Wednesday morning.
As far as accumulation is concerned right now the general thoughts among the models are 1-3 inchers across the entire Tennessee Valley. It looks like everyone will see at least 1-1.5 inches, but I think hose along the I-65 corridor will see the higher amounts. There is still some uncertainty here as the models are not completely together on the timing. I also believe folks across extreme NW Alabama could see some frozen precipitation where everyone else will see rain change to a brief mix before changing to all snow. This event will be over by 1 PM Tuesday afternoon.