BIG SUR, Calif. -

7:00 P.M. UPDATE:  Fire crews are now facing a dry cold front with up to 20 miles per hour winds Wednesday night that could affect the flames' path. Fire crews do expect containment by Thursday instead of Friday now, despite the weather conditions.  Right now the blaze is 74 percent contained. Meanwhile, emergency crews want people to be aware of falling trees in the midst of the fire. 

The Pfeiffer Fire has been burning since Sunday night, and has scorched 843 acres and destroyed more than 20 homes.

Fire crews said that they made progress containing the perimeter along the south end of the fire overnight. Throughout the day crews are planning to continue to set up and reinforce fire containment lines and mop up hotspots.

Almost 900 fire crews are working to contain this fire, which as of Wednesday has burned 843 acres. There are plans to have a damage assessment team evaluate some of the damaged and destroyed homes.

Fire officials on scene told Central Coast News that, weather permitting, they hope to have full containment of the Pfeiffer Fire by Friday evening.

The following road closures are still in place: Clear Ridge Road, Pfeiffer Ridge Road and River Inn to Pfeiffer Ridge Road. Highway 1 is open, but be prepared as there will be additional traffic due to emergency vehicles.