Which means he's shooting a phenomenon where the Sun sets (that's West) and it's coming in from beyond the horizon (that's West) and it's NW of Catalina Island (which is still West) and then he says it's "going West" (which is bizarre.
He is describing something coming in from the West then going back out West.
Might be time to quit trusting this guy to fly a news helicopter around Los Angeles eh.
You keep misquoting him.
He says it it "going in a westerly direction." That's a pretty clear statement.