I don’t recall reading any predictions for California? After another virtually snowless winter for lowland England I would have thought the predictions were pretty good, as have been the prediction that our winters would become warmer and wetter. Then there is the lack of snow and retreating glaciers across Alpine regions, also in line with climate change predictions.
But let’s focus on a freak snowstorm in a part of California…..
It's more interesting than you imply, as I take your reply to mean that you regard it as a one-off event.
I recommend reading
https://en.wikipedia.org/wiki/Droughts_in_California which links an irregular cycle of dry years and wet years, each in turn lasting up to a decade, to the effects of global warming. Unfortunately some studies suggest that warming makes dry years more likely and other studies favour wetter years, just to muddy the waters as it were.
In the 2010s I remember reading articles predicting doom for Californian agriculture as not enough snowmelt was occurring to allow for the necessary irrigation. . So I regard this snowfall, yes, as an extreme example of what can happen when California is in a wet part of the cycle, but falling well within an area of interest for those who follow unusual weather, and not appropriate for casual dismissal.
War does not determine who is right, only who is left - Bertrand Russell
Chichester 12m asl