Hi Mike
Firstly , you do not need any know how because we are there to do the necessary. If you have an interest in tornadoes/weather/storms that is enough. As for specialist equipment all you need to bring is anything you want to use to take photos or video. You can bring a laptop but not totally necessary.
We start in Dallas and will head where ever there is the best potential for severe storms. At the end of each day we find a motel , hopefully near to where we are. Occasionally we drive towards the target area for the following day.
To give you an idea. One year we left Dallas and chased storms around Oklahoma City. The next day we chased around Ardmore Oklahoma. Last year we found ourselves heading from Dallas to the Oklahoma/Kansas border and then into Kansas/Nebraska/Texas and then New Mexico.
We saw some lovely storms.
Whilst chasing we eat fast foods but do occasionally find time to eat properly, steak is always eaten when we see a tornado, unless you are vegetarian,
We have fun.