April and May seem to be the best most active months, but Ive chased storms in November and I even once chased on Valentines day and got a few shots. But there is no guarantee that anything will develop. The storm patterns have RADICALLY changed in the last few years.
Just a few years ago I was chasing so many storms and over such distances that I would leave work, go pack up the vehicle with all my gear go intercept the storm, and chase all night, pull into the parking lot at work and get an hour or two of sleep and work all day and sometimes go back out the next day.
It was nothing for me to capture from 300 - 500 lightning strikes on camera. Last year if I managed 50 I would be surprised.
