As of 10:20 pm, the composite radar image of the Deep South shows a line of strong to severe thunderstorms continuing to move closer to North/Central Alabama and should start affecting the extreme northwest corner within the next 30 minutes to one hour. The good news is that the line does not look as impressive as it did just one hour ago. We still have to watch out for the potential of stronger to severe storms mainly north of a line from Carrollton (Pickens Co.) to Blountsville (Blount Co.) to Henagar (Dekalb Co.)
The main threats will be from isolated damaging wind gusts up to 60 MPH and hail up to one-inch in diameter. A brief tornado or two cannot be ruled out, but they will not be likely.
A Tornado Watch was recently issued for the northwestern parts of North/Central Alabama including Fayette, Lamar, Marion, Pickens, Walker, and Winston counties in Central Alabama, and Colbert, Cullman, Franklin, Lauderdale, Lawrence, Limestone, Madison, and Morgan counties in North Alabama.
The latest STP values off of the HRRR continue to show lesser values than what we saw during the afternoon runs. The valid time for the above image is at 2:00 am.
We will have to continue to watch for the potential of a brief tornado as the latest Updraft Helicity product continue to show the potential of rotating updrafts stretching from west-central parts of Pickens County to the northeastern parts of Walker County.
So the bottom line is… be sure to have multiple and dependable ways to receive warnings, especially ones that will wake you up. If a tornado warning is issued for your location, you will need to know so you and get yourself and your family to your place of safety. Go ahead and have those safety kits ready. While this is not expected to be a big event, all it takes is for one tornado to come down your street in your neighborhood to make it a big event for you.