My interest with storms dates as far back as I can remember, with my earliest storm memories being when I was 6 or 7, watching lightning and thunder from my front bedroom in Charleston, WV. A distinct memory I have from those 'stationary chases' was a CG with a loop in it that was shaped like George Washington's head - a phenomenon I called "George Washington lightning".
The 1985 NOVA special "Tornado!" sparked a deeper interest, and from that point on, weather/storm books were checked out at the library on a regular basis - sometimes the same ones over and over!
My prompting to begin actively chasing storms was Dr. Martin A. Uman's 1986 book "All About Lightning" that I received for Christmas during my first years of high school, around 1991-1992. In the book there was a section detailing lightning photography. I received my first 35mm SLR (a Pentax K1000) as a graduation gift from my grandparents in June 1993, and as I already had my driver's license, the first chance I had I went out after a storm in Washington, Pennsylvania. That first chase in July 1993 was spectacular, I came home with several nice shots, one of which to date, ironically, has been my most popular seller in 11 years.
http://wvlightning.com/gwindsor4.html
Since that day I've been shooting every storm that is within 50 miles or more of me, with my usual 'home chase territory' being West Virginia, Pennsylvania, Ohio, and Kentucky. I cover about 3,000 miles chasing locally every year. As time goes on I've found interest in chasing other phenomena such as tornadoes and hurricanes. My trips to the Plains started in 2001 with the encouragement of Bill Coyle and Dave Crowley to expand my horizons beyond the Appalachian storm.
I hope to continue chasing as long as the Lord wills and I'm able to afford it.