. >> continueolw ea nri n inyhere a wildfof vacavillele a and people have b ordered to evacuate. this is part of the lnu lightning complex and there is 0% containment. it includes the hennessey fire. and an update onwier a few hours ago, cal fire says this fire has jumped pleasants valley road and heading toward vacavil. i o caoffi scirefial confirmation o much of vacaville will be evacuated. the lnu lightning complex though is burningn terrain with a lot of dry thick brush and vegetation fueling the flames. so a tgh situation out there. and mike, i know this is something you've been watching because the heat we've been talking about today andirhe t f. >> absolutely, heat and terrain are the two biggesttoac f thr low humidity. we don't have the winds, but you can see the wind that the fire creates as it was sucking the called the chimney effect. it heats dries it out and then allows to ignite faster and burn hotter. and that is why y ou get t rising air and you have to bring in air from around the system to fill in that rising air. you can't have a vacuum in the atmosphere and th