That is brutal.
All of that destruction must have happened within six hours- the fires started around midnight and considering how dark it was when Berkeley FD arrived it had to be before 6.
The wind doesn’t seem to be gusting hard like in a Santa Ana but that much widespread destruction has to be the result of embers jumping from house to house.
I think the burning embers must have literally flooded the sky and dropped down across a wide area all at once, setting simultaneous fires. That’s the big problem with the uplifting winds across the mountain ridges. What’s amazing is that these Diablo Winds don’t die down at night. They can continue throughout the night.
Houses burn so hot that the radiation sets the interior of adjoining houses on fire!