even see it anymore. and now it's beginning to rain down ash. >> we've been reporting here on the evacuations, and you were saying earlier that many of these families have actually left a signal behind? >> reporter: yeah, they sure have. they are hanging white towels on their front doors or porches to signal to officials that they're not waiting for them. they have already left. those fire officials have visited them earlier and tied police tape around to let them know they have a notice to evacuate. >> i know a lot of eyes on the weather tonight. not only because of the winds but because of dry lightning. what's this all about? >> reporter: the dry lightning moves in as a storm without any rain. the lightning hits the ground, can start more fires. and that's when the winds move back in from the storm and really carry this thing. david? >> all right, katie raml, thank you so much. we turn overseas this evening and to the chaos unfolding at this hour in yemen. a crucial u.s. ally. yemen's president, who at first