patagoniax wrote:Según los testigos, nada de avalancha:
you seem to be more credulous than we thought p~x...?
undoubtedly there was significant snow at certain elevations in the pass
but the snowfall was also accompanied by warming temperatures...
there was also rain at lower elevations.
now look carefully at your press picture...
do you see any "heavy snow" layers above the road?

no - other than the debris deposit in the foreground...
what you see in the background is mostly vegetation, very little snow.
thus, it has rained there, good sir - regardless of any earlier depth of snow
now a warming cycle w/rain acts on those snow layers above the road...
those deeper deposits, in natural terrain features (aka shallow gullies)...
well, the snow becomes "isothermal"...
losing any cohesive strength, with a lubricating layer forming at the terrain interface
in highways operations (in spring) g~ would wait for those isothermal conditions...
then jump in a helicopter - and throw 25kg bags of anfo onto steep hillsides...
with some rather spectacular results!
btw... having witnessed many, many clean-up operations...
if the snow is equally dispersed along the road surface...
the loader operators simply push it all over the low-side.
look again at the photo...
there has been no snow pushed over onto the right (low) side of the road...
because there wasn't any to push - it had mostly melted!
and anyway - operators do NOT push snow into big piles such as the photo shows.
why would they bother? - just have to push it again, over the low side.
while not witnessing 1st-hand any chileans operators - most loader operators are not stupid?
you can believe all the (partial~subjective) press reports & eye-witness statements you wish...
but that picture is of a wet avalanche - undeniably covering both lanes, blocking the road...
thus endeth your lesson...
your areas of expertise are many~varied p~x... but re avalanches, you may be lacking!
