University of California, Irvine Steele/Burnand Anza-Borrego Desert Research Center. Located in Anza-Borrego Desert State Park - Borrego Springs, CA
https://anzaborrego.ucnature.org/
A snapshot from the relatively "small" thunderstorm that moved over the Salton Sea on September 28th. The last sunlight still reached the cloud tops (just under 20,000 feet) 10 minutes after the sun had set locally at the Salton Sea (Photo: Sicco Rood).
