Below is the 0 to 1 km helicity (veering of the wind in the lowest 1 km of the atmosphere)…
Note the highest values are north of Alabama over Tennessee and Kentucky. It sure looks like the greatest tornado threat will remain in this area; the squall line moving through here after midnight will have the potential primarily of damaging straight line winds. We will especially be watching for bowing segments of the line.
I am still at the ABC 33/40 Weather Center at this hour… Ashley Brand is also here and is handling the updates for now. We will do live updates on TV about every 30 minutes. Of course, should we have a tornado warning we will go “wall to wall”. And, we will keep the blog updated often with fresh information.
Thanks for staying up with us tonight… as J.B. says, “who needs sleep”???????
