Must be Global Warming

Today we had three tornadoes in Southern California. Train cars and big rigs were tossed around. Dogs went missing in back yards. We also had snow about fifty miles west of Palm Springs - not in the mountains but in the desert! Here in Orange county we had rain and a few thunder claps. Five miles east of here where the fire burned last year we had mud slides from a cloudburst. Two weekends ago we had temperatures near 100. So, is snow in Southern California in May caused by global warming? Seems to be counter intuitive. How about exceptionally hot weather in May? Perhaps it's neither. It may be just the normal variation in short-term climate. No, that doesn't compute because it doesn't fit any political agenda.