reporter: hi, soledad. yeah, this fire has really amped up in the last just couple of hours. a fire official told me less than an hour ago if he told me an acreage amount, it would be wrong in ten minutes. it s advancing 10,000 feet every hour. the last four days this has been burning, they counted on the wind to at least burn it in towards the interior of the forest and away from populated areas. just within the last half hour, that has completely changed. the smoke is now coming towards us, towards the city of colorado springs. now, it doesn t seem at this moment there s any real danger to the city itself. but so far as of a couple hours ago, they miraculously i think not lost a single structure. i was in the interior of this fire and they had fire lines around individual houses and every single one them had held. this is going to make it a lot more difficult with this change in the wind direction. that s what prompted that additional evacuation of 7,000 people, soledad.