enormous instabilities @ CA 0800 EDT daily?

I was looking over some trend graphs which I remember to look
at from time to time and noticed that there recently has been
a large level of instability between 7 and 9 a.m. Eastern (D.C.) time,
with the worst period occurring at about 0800.

The instability graphs that compute.merit.edu puts together
shows a very similar trend, at least for the past few days.

Is anyone else seeing this?

If so, does anyone have any theories? I'd really like to see this fixed.