It's nearly impossible to chase ongoing storms around here. This is why I when my friend and I will go out of state we try and pick a location which looks "good" in terms of potential and we'll do some research ahead of time and try to find golf courses, open fields, or anything with good views.
If chasing something oncoming around here I'll try and find a location within the path and get there well ahead of it. But to try and chase something ongoing (as it trying to catch it)...almost impossible.