"Could Solar Storms Destroy Civilization? Solar Flares & Coronal Mass Ejections" by Kurzgesagt: https://www.youtube.com/watch?v=oHHSSJDJ4oo
From the article:
> One-third of major storms arrive unexpectedly, according to the SWPC’s own 2010 analysis. And that’s not just the small storms. According to a news article in Science, the SWPC might be also be poor at identifying the characteristics of severe storms, since they are so rare.