Early season snowfall is looking to be a good bet across parts of the south through midday Tuesday. As it always is in winter weather situations around here, it is a tricky forecast. The entire weather situation revolves around the evolution and movement of an area of low pressure in the upper atmosphere.
As this area of low pressure strengthens and moves across North Alabama it is going to do 2 things. First it's going to be providing lift in the atmosphere which will continue to produce precipitation through tomorrow. Secondly it is going to make the atmosphere colder, which will help change the chilly rain over to a wet snow. Right now we expect that transition to begin happening this evening into tonight.
WAFF 48 Pinpoint Predictor is forecasting that change to occur as early as late afternoon in the western part of the area. This may be a little early, but definitely expect the changeover to occur through the evening hours.
This is the latest forecast of expected snow totals. Light accumulations of 1" or less are possible across most of the area. The potential for slightly heavier snow will be across NW Alabama and some of the higher terrain areas in NE Alabama where up to 2" is possible.
Winter Weather Advisories in effect for tonight into Tuesday morning already surround us. No advisories have been issued yet by the Huntsville National Weather Service which is responsible fo our area.
With this being an early season snow were do have some factors working in our favor to keep the impacts from this at a minimum. Ground temperatures remain warm due to the mild weather much of this month. That will limit snow accumulations initially. In particular it is going to be difficult for snow to accumulate on most roads. In any heavier bursts of snow some slushy road accumulation is possible, mainly on bridges and overpasses. We mainly expect any accumulations to be on the grass only. As a result, at this point it does not appear that we will have any significant travel problems.
As with any winter weather event stay tuned to the WAFF 48 Storm Team on-air and online to continuing updates and changes to the forecast.
WAFF 48 Storm Team