The cap and storm chasers are frenemies. Storm chasers need the cap for the very best days to happen, but not so much cap that storms don’t happen at all. The cap needs to be there, just not overwhelmingly so. In that way the cap is like your neighbor William.
On this day in April of 2017, the cap looked like it was holding strong — but as luck would have it the cap was ready to give storm chasers a show after all as a storm managed to break through late in the afternoon.