Here is the output from the new 12Z run of the NAM, valid for 6:00 tomorrow morning local time….
Still no doubt the heaviest precipitation will be over South Alabama, and amounts up this way should be light. But, the potential for web bulbing, and the fact that models have a hard time dealing with shallow layers of very cold air like this continues to be problematic. I do think the potential is growing for some bridge icing over parts of North Alabama for a brief time tomorrow morning as sleet changes over to light freezing rain. We will probably have to hit this harder in our afternoon forecast package.
Since the cold air is pretty shallow, I don’t think we will see too many snowflakes tonight or early tomorrow, but I guess a few are possible over the northeast corner of Alabama if the moisture can reach them.
TO THE WEST: Here is an SPC update for wintry precipitation…
More later… stay tuned!
