KNTV NBC Nightly News With Lester Holt October 31, 2019 09:12:00
Conditions with firefighters as the winds hit 60 miles per hour, it's blinding out here. look at how fast the flames are moving. the powerful winds, known as santa anas in southern california, originate from dry, high pressure in the desert gaining speed while ripping through channels in mountain terrain. this is what they do and this is what they sound like >> sounds like hell was breaking throughs will thgsart. >> reporter: and it was. firefighters on their heels playing defense and losing ground.t of its o almost at its mercy. >> reporter: it's the most extreme wind event in the last decade...