Here's why games don't get thunderstorms right

Thunderstorms are amazing. In the not-quite-South-West of the UK where I live, they're also incredibly rare. Maybe one or two a year pass by, and rarely overhead. But when they come, they are often spectacular. I'm only the world's second greatest meteorologist, but it seems to me that Cornwall gets all the best thunder, and every now and then it stretches up as far inland as us. So when it happens, you can guarantee that I'll either be hanging out an upstairs window, or marching to the top of the nearest hill to get the best view. I adore thunderstorms, so very, very much. Which makes it weird that they're always such a non-event in games.