Not too long after, a very loud clap of thunder rolled across the sky. The thunder lasted for about 25-30 minutes, so I recorded a few examples. The recordings are best heard with headphones, if you have them. Otherwise, you might need to turn up the volume of your speakers. [If you can't see the audio files below, click on the title of the post above to go to the website.]
It started to rain...and then the storm decided to add some pea-sized hail:
The thunderstorm moved off to the south, and the sky started to clear, but this wonderful storm ended with a grand finale:
Photos and recordings are from Cotati on 11 June 2017.