Husband saw it and friends traveling with us in another vehicle saw it from highway 10 through Montclair. None of us had ever seen anything like it before. It seemed so close, like a burning airplane falling! Then it just disappeared. It seemed like it was right over Pomona. My record of the time is not precise; I texted my friend about it after looking online with my phone for information so I'm estimating we saw it about 5 minutes before I texted her. Very dramatic.