The heavy storms Monday afternoon and evening took away a lot of the available thunderstorm energy leaving us with rain-cooled yet very steamy, sticky, humid air. It’s much more unstable south of US 278 Monday evening.
The Storm Prediction Center’s outlook includes a much larger area of North Alabama, but the lack of good fuel for storms north of Marion, Winston, Cullman, Blount and Etowah Counties makes it very unlikely that new storms form over the Tennessee Valley, Brindlee, Sand or Lookout Mountains before the front passes tonight.
As the cold front moves through the region, more showers are possible – and even a little lightning and thunder in spots – before drier air moves in early Tuesday.
A Flash Flood Watch is in effect through Tuesday for Jackson, Marshall, DeKalb, and Cullman counties due to the threat of additional flash flooding.