Two keys to success fire crews are hoping for as the Bear Fire continues to threaten structures

Nearly two weeks since the Bear Fire erupted and entered Butte County, containment has gone from zero percent to over 50-percent in just seven days.

Still, over 10,000 structures remain threatened, and over 1,800 structures have been destroyed.

First, new tonight -- the butte county sheriff's office announced tonight it will begin escorting bear fire evacuees to their properties.

We'll have more on that in a minute, but first -- the bear fire... also known as the north complex west zone... continues to burn and is stil* threatening about 10 thousand structures.

Action news now reporter esteban reynoso is live at the cal fire command center.

Esteban, what are you learning from firefighters tonight?

The bear fire grew by around 900 acres since yesterday, behind me is one of the crucial maps fire crews use to coordinate their attacks on the fire, that has destroyed more than 1800 structures.

It's a harsh reminder that this fire isn't gone yet.

"good weather and time" two keys to success fire crews rely on in hopes of bringing containment of the bear fire to 100%..

"this is gonna be a time consuming process, and we're at 80,000 acres just on this part, this half of the area."

It's been nearly two weeks since the bear fire exploded and entered butte county, but the terrain remains an obstacle for crews, keeping the fire alive.

"our plan of attack for today was to point of reference was what we called our division delta, which is in the south end of the fire near the forbestown, woodleaf, clipper mills area.

There is one area that is in steep, inaccessible, rugged terrain that is giving our firefighters a really big challenge."

And the weather continues to be another hurdle fire crews have to anticipate.

"we can always pray for rain, but obviously this isn't that time of the season for that.

Cloud cover and obviously less wind.

So those are the three major factors that we like to have.

And when we have lower temperatures, so that also help."

And getting ahead of the weahter has become a priority, in case it becomes an enemy, "we're doing a lot of work and making a little bit of progress each day, and it's an area of concern because we want to make sure that we get a hold of that area just in the event that we do have a wind event that will happen in the future."

And it's those uncertainties that captain crawford says crews are looking to take care of before people can come back home.

"we do understand the amount of people that are displaced.

When we're done with our work, we want to make sure that we get people to return safely to their homes, and they can stay and not have to worry about a mitigating threat."

Captain crawford told me that just 7 days ago, one week before today, the north complex west zone was at 0% containment.

Now it's over 50% contained.

Live at the command center, esteban reynoso for action news now coverage you can count on.