Like here, edge of dry slot gravity waves along with embedded mesos. I watched whole good oaks bend completely over with one gust, thats when I saw a blue flash twice. I was looking out the back with my hand held spot light at the time. The blue flash was a tree branch on the power lines across the street blowing the breaker on the transformer. Cool stuff.
We have had multiple SE big wind events here since Irene. The demise of the oak forest is in full swing. Acres of dead trees.