The NWS Birmingham has issued a severe thunderstorm warning for much of Blount, northern Jefferson and extreme northwestern St. Clair Counties till 1:30 PM CST
Storms have intensified from Clarence to west of Oneonta to Locust Fork to just east of Morris.
The stronger reflectivity indicates intensification and a greater ability to bring damaging winds to the surface.
Seek safety in a sturdy building or shelter now before these storms arrive.
Isolated tornadoes are also possible.