Turbulence Forecast App (they also have a website) gives you insider information to help you estimate if your flight will be turbulent or smooth. You’ll have access to the same maps the pros use. It’s free and compatible with iPhone, iPod touch, and iPad.
I recently flew from Toronto to L.A. on American Airlines and that flight now has Wi-Fi thanks to Gogo. I almost always use it so when the captain announced we were descending rapidly because we were about to hit severe turbulence due to an unusual strong Jetstream the first site I logged on to was [...]