A new Cal Fire video update has been posted (link below starts at the Big Bear section)
https://youtu.be/meio7RFcZvc?feature=shared&t=210

Formatted transcript:

And that will bring us all the way to the edges of our Bear Creek drainage. [The] Bear Creek drainage has been one of the areas that we’re really trying to figure out how we’re going to deal with. What we’ve decided is we’re going to send Crews down into that Bear Creek drainage, and they’ll be cutting it out. It’ll be a long process - probably a 5-day event. We’ll have helicopter support for them, and we’ll have some safety mitigations that will have to take place, but due to the weather for the next seven days, [we’re] confident that fir-behavior wise, we can keep this in its footprint with some very slow growth over the next couple of days.

So we’re going to take advantage of our weather, we’re going to take advantage of the high humidity, and we’re going to take advantage of the lack of wind - and we’re going to get our crews down in there and cut that whole piece out. It’ll be a lengthy process with a lot of people.

Moving over into the Big Bear drainage, we still have that potential for fire runs up to what we call the plateau, which is right up on the top there where that enormous fuel brake was [created by] the forest service.

[The] fire will creep up and make slope runs up that drainage up to the plateau, and then slop over the plateau. We’re pushing Dozer line around that entire Plateau all the way back to the Bear Creek drainage, and then North to the dam.

Once we get to that piece, that should be able to mitigate any of our problems in the Big Bear area. So, the next two or three days will be critical for that operation.**

As we move down off the plateau, and where it says division Romeo into the Clark’s Grade area, crews are continuing to improve that line coming down Clark’s Grade to the n54 road, and push down into the bottom into the S Oaks Road system, and then move back to the west and tied directly into the fire. Over the next day or so we should have [a] direct line all the way around that entire Eastern flank, all the way back down to the dam, which has been a tremendous progress. [The] next 2-3 days is that critical piece for us to get this entire Eastern section with line around it from the from from Big Bear all the way back down to the dam.

I am fairly certain that this below image I created from the Cal Fire 3D map is “The Plateau” mentioned above: