Probably the wildest thing you'll ever see. This is an SPS that's also covering the Winter Storm Warning area near Mammoth.
"If outdoors, consider seeking shelter inside a building.
Conditions are favorable for the development of weak, brief funnel
clouds. This type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors and report your sighting to the
National Weather Service.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service."
The forecast attached to that, this is at 9000-10000 feet.
"Tonight: Snow showers before 1am, then snow, mainly after 1am. Some thunder is also possible. Low around 5. Wind chill values as low as -16. Windy, with a west southwest wind around 30 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 37 to 43 inches possible."