Humans short on memory and long on vanity can make weather appear sneaky. Tires spinning with futility on Interstate 29 during the previous big blizzard offered cold, slick proof. You would think that a week’s advance notice would be enough to prevent massive traffic tie-ups. “The blizzard of the century is coming,” the newscasters said. Of course, the century is only 13 years old, so how bad could it be? I’ve been experiencing Mother Nature’s fickle weather for enough decades to warrant wisdom.