A major set of thunderstorms are active in the Springfield, IL area at this time. About 30 minutes ago power in Chatham, IL flickered on and off several times. My UPS backup device kicked in but my monitor went nuts with the spike. The UPS protects against voltage spikes but my flat screen monitor was temperamental anyway. It is now back up and running properly but I’m typing this on our laptop. At the moment the storm seems to have calmed down. The temperature outside has cooled down tremendously though. If I remember right this type of fluctuation can lead to optimal chances for tornadoes.