I'm sure this is abnormal for the Bay Area, but insane seems kind of overblown - this doesn't sound out of the ordinary for the midwest at all. Thunderstorms, hail, and occasional tornados are routine in the summer.
Just last week, the windspeed equivalent of a category 2 hurricane rolled through IA/MO/IL, destroying homes, business, and billions of dollars of crops: https://twitter.com/coldbrewedtool/status/129407960042804429...