Swiss Mud
 

This couple was lucky...

Attachment 68167

This video will tell you why in the first 2 minutes, the rest is more of the same.

Just a massive pour of brown concrete with bus size gravel.
That is truly impressive. And not survivable.
Is it the same as a lahar?
Rain storm way up?

Only if it's volcanic in origin.

I think the above is just from rain.

Yeah, a whole lot of rain, that's probably causing extra melting up high to add to the volume.

Record snowfall last month, s'gotta go somewhere