No mention of Rosa from our Arizona friends so I will.
My son and his wife live in northern part of state.
I remember this happening before usually late September into October.
In 2010 a large amount of moisture moved up from south causing the mountains around Flagstaff to have a huge tornado outbreak, elevations 6800-8000' which is extremely rare for any tornadoes had 9 confirmed.
Here is the Wiki, I think was one of the most unusual weather events ever for Arizona.
I went on elk hunt in same area of tornadoes later that same year and it was amazing looking at the paths of downed trees some areas 300-400 yards wide going for 30+ miles.
https://en.wikipedia.org/wiki/October_2010_Arizona_tornado_outbreak [ You are not allowed to view attachments ]