The tornado never touched down in San Francisco. But the conditions in the atmosphere with wind speed and direction were right, said Brian Garcia, warning coordination meteorologist for National Weather Service in the Bay Area. “San Francisco got lucky,” he said.

"It was a miracle no one was killed in this event," Scotts Valley Vice Mayor Derek Timm said to a news station Sunday.

In Scotts Valley, people are still trying to wrap their heads around a tornado that touched down in the busiest part of town on Saturday.