Forum Index > Trail Talk > "300 Year Event" Avalanche
Previous :: Next Topic  
Author Message
Bootpathguy
Member
Member


Joined: 18 Jun 2015
Posts: 1002 | TRs
Location: United States
Bootpathguy
  Top

Member
PostSun Mar 17, 2019 6:01 pm 
Reply to topic Reply with quote
"The mile-wide avalanche that happened in Aspen Highlands on March 9th certainly felt out of the norm. It was a nightmare that released naturally, charging over 3000 feet and destroying trees like toothpicks as it piled into the Conundrum Creek Valley"


https://www.tetongravity.com/video/news/aspen-avalanche-could-be-a-300-year-event

--------------
Experience is what'cha get, when you get what'cha don't want
Back to top
View user's profile Search for posts by this user Send private message Reply to topic Reply with quote
gb
Member
Member


Joined: 01 Jul 2010
Posts: 5197 | TRs

gb
  Top

Member
PostSun Mar 17, 2019 7:52 pm 
Reply to topic Reply with quote
The Cascades can have even bigger avalanches because of deep snowpacks (most years) and terrific relief. I'd bet a dollar to a donut that the Isella Glacier on Bonanza as an example will release this week from 8000+' to Hart Lake 3800' and possibly across the valley and up the other side (It did that years ago according to friend of mine that saw the remains of the avalanche. The entire snowpack beneath the glacier could well go in the next couple of days.)

The largest crowns in the Cascades on bigger snowpack years can reach 20-25' deep as one did back in 1990 off Heliotrope ridge into Grouse Creek. Old growth timber was destroyed in an area of about 500' wide and 1/4 mile long. Their have also been immense slides off Backbone Ridge and near Cascade Pass and I am sure in many other places as well. Shuksan Arm near the ski area has recorded slabs to 18'.

I have a friend with a Cessna and we've flown a few times in these mega slide cycles. Probably in 2011 I photographed a roughly 10' slab that released the width of the snowfield below Seward Peak's summit (perhaps 8400') and ran three miles to the 2800' level in a fork of Nooksack River. The last 1/3 mile was through large old growth forest. This would be a really neat week to see the damage throughout the Cascades (from a plane, not on foot!  eek.gif ).
Back to top
View user's profile Search for posts by this user Send private message Reply to topic Reply with quote
geyer
Member
Member


Joined: 23 May 2017
Posts: 324 | TRs
Location: Seattle
geyer
  Top

Member
PostTue Mar 19, 2019 3:36 pm 
Reply to topic Reply with quote
gb wrote:
I have a friend with a Cessna and we've flown a few times in these mega slide cycles.

GB, how do I become friends with one of these people?  wink.gif
Back to top
View user's profile Search for posts by this user Send private message Send e-mail Reply to topic Reply with quote
Freesolo
Member
Member


Joined: 07 Sep 2014
Posts: 15 | TRs
Location: Mountlake Terrace Wa
Freesolo
  Top

Member
PostTue Mar 19, 2019 4:12 pm 
Reply to topic Reply with quote
I'm one of the few people that has climbed the South side of Bonanza via the Isella glacier and WOW are you right on that one.  You would not want to be cross country skiing just up from Hart Lake when that thing kicks loose.  It's a long strait shot, all at a slope with a lot to feed it.  I'd love to see pics.  That's why there's only bushes under that slope.


--------------
All the way...
https://www.youtube.com/user/freesolo
Back to top
View user's profile Search for posts by this user Send private message Send e-mail Reply to topic Reply with quote
  Display:     All times are GMT - 8 Hours
Forum Index > Trail Talk > "300 Year Event" Avalanche
  Happy Birthday Nancyann!
Jump to:   
Search this topic:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
   Use Disclaimer Powered by phpBB Privacy Policy