HUNTSVILLE, Ala. - Our spell of dry, warm weather comes to an abrupt end overnight and early Monday morning as widespread areas of rain return to the Tennessee Valley. Many areas (especially in northwest Alabama where the rain began before 10 p.m. Sunday) will likely see several hours of steady, soaking rain through Monday morning.
We still think the greatest risk for damaging storms will exist across central and southern Alabama (not here), but we will watch radar trends very closely through Monday morning.
What to expect Monday: There will likely be a large area of rain covering northwest and west Alabama by the time you wake up Monday morning. It will be very wet and windy for the bus stop Monday morning, and you may even need to budget in extra time for your commute to work.
The Storm Prediction Center's 'slight' risk of severe weather for Monday now includes a good chunk of the Tennessee Valley. The higher probabilities of severe storms still exist across central and especially south Alabama (south of Birmingham). Our part of the state will be right on the edge between really rough storms and just a lot of rain and wind.
The greater risk for any strong storms in our part of the state would begin around 1 a.m. Monday across Colbert, Franklin and Lauderdale Counties. The risk of strong storms is forecast to come to an end between 9 and 11 a.m. for DeKalb and Jackson Counties. The heaviest rain (and most likely time for any possible strong storms) will be in Huntsville, Athens and Decatur between 4 and 8 a.m. Once the initial burst of rain arrives, it may keep raining for a few hours no matter where you live.
As the cold front moves through late Monday afternoon and evening, additional, more isolated showers or storms may form. There are some big questions as to if this "second round" of storms will even form, but if they do, they may also be strong. The window of opportunity for these additional storms would begin around 4 p.m. in northwest Alabama and exit Sand Mountain between 9 and 10 p.m. Monday.