US Rocky Mtn Conditions Updates 2012 season....

jmom800x

New member
Cooke City, MT - January 25th ride report
It was a day for the trees at elevation. The wind was whipping around the light accumulation fiercely making visibility very low on 'top'. We managed to tuck in some meadows and play off the smaller lake edges avoiding the wind for mos of the day.
The snow up top is blowing and drifting in pockets making for some fluffy powder. Our tracks from Tuesday had vanished before our arrival this morning, making for a pleasant ride in new snow.

Avalanche.Org Report....
In the last 24 hours mountain temperatures have risen to 20F with strong westerly winds blowing 25-30 mph and gusts over 50 mph. Scattered snow showers dusted the Bridger Range and dropped 1-2 inches everywhere else. Continued showers today and tonight will drop 2-4 inches favoring the southern areas. Winds will remain strong and temperatures will hover near 20F. Tomorrow looks to be the snowiest day of the week.

The southern mountains, including Cooke City and the Lionhead area, have serious stability concerns (video). Mark and Karl were in Lionhead yesterday. Avalanches from the weekend were numerous; however, what gave them pause was a large, fresh, natural avalanche that broke with only two inches of new snow (photo). They dutifully dug snowpits, but found inconsistent results in their stability tests. No matter, recent avalanches provided the bulls-eye information they were looking for. The snowpack is weak and unsupportable. Carving a turn would easily sink the track down into the facets. Foot penetration was to the ground. A skier in the Bacon Rind area commented it was easy to investigate the snowpack when it’s at chest level. Snow during the past week has created slabs and increased stress. A few collapses and poor stability test results were all he needed to stick to sub 30-degree slopes.

The Cooke City area has gotten snow nine out of the last ten days. Natural avalanches and many human triggered slides, some triggered from afar, partially buried snowmobilers on Saturday and again on Monday (photo). Remote triggering is scary stuff since we can release avalanches from flat terrain, hundreds of feet below the starting zone. Seeing natural avalanches in Lionhead after a paltry two inch snowstorm, plus remote triggering in Cooke City is conclusive evidence that the avalanche danger is rated CONSIDERABLE on all slopes today.

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jmom800x

New member
A small video from yesterdays adventure in Cooke City

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WisDoo

New member
Nice "captian bizerko" this could very well take off as its own film series. i have seen him go bizerko on small trees rock jumps and other items which could very well make good film.

Flatlanders feature Captian Bizerko....... I am sure you and Rob can take it from here
 

jmom800x

New member
Just had breakfast with Doug Chabot from Avalanche.org, very enlightening conversation regarding avy conditions here in the Rocky West. He and his partner are heading up to dig some pits and analyze the conditions today. Preliminary reports show a heavy ice crust on south and east facing slopes and wind loading on east facing slopes with the new light snow. Some north facing slopes seem to be a bit safer at this point. They are going to check out the self on Henderson today. Then they will head up to crown butte.
 
From Jan 7th, West Yellowstone.

http://www.youtube.com/watch?v=jGgbRQHSeHY

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Sounds like all got out just fine. Funny thing is, I would have no qualms going up this little chute and up that same small slope. Whoa! That is some really highly unstable Avy conditions.
 

jmom800x

New member
From Jan 7th, West Yellowstone.
Whoa! That is some really highly unstable Avy conditions.

Unstable and unpredictable...

Island Park, ID update February 5th and 6th.

In IP now with a load of 21 flatlanders from MomsMotorSports

The snow is still here. The fresh that fell last week has settled and the tracks were abundant in the canyon area. A few of the guys from the other group went to the hills on the west range. Deeper snow, steeper terrain though and there have been a few natural slides in the area.

Here is the report form Avalanche.org
Yesterday, Doug investigated a large natural side that occurred in the Lionhead area on Friday (video). He found an avalanche that broke up to 3 feet deep, three hundred feet across and ran nearly 800 vertical. It was a hard slab that failed on facets near the ground. What was surprising about this avalanche is that it naturally released after the area received only a few inches of new snow. This illustrates the weak and fragile nature of the snowpack in the mountains near West Yellowstone.

The snowpack in the mountains around Cooke City is spatially variable. Some slopes have a deeper, stronger snowpack while others have a layer of facets buried 3-4 deep that is still causing avalanches. Slopes with a southerly aspect have the widest distribution of this layer. On Thursday I remotely triggered a large slide on the south face of Mt Abundance (photo) and on Saturday riders observed a natural avalanche in the same area (photo).

A calm weather pattern over the past few days is making it more difficult to trigger avalanches. However, it is still very possible to trigger a slide on slopes steeper than 35 degrees. Avalanches will be easier to trigger in areas where the snowpack is thinner, such as rock outcroppings or thin scoured areas.

Today, the avalanche danger is CONSIDERABLE on slopes steeper than 35 degrees. Less steep slopes have a MODERATE avalanche danger.
http://www.youtube.com/watch?v=dyQnowJtw8U
 

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jmom800x

New member
Roll-over video from yesterdays ride

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jmom800x

New member
Island Park, ID - February 7th,8th and 9th.

Blue bird skies here in Island Park this week making for some great views. The set-up hero snow makes exploring and boondocking up hill in the valleys and trees easy. Some snow is in the forecast and it is greatly needed. We have covered some ground here in IP looking for the fresh deep snow. The big area on the west edge is fairly tracked up and there is evidence of natural slides from the past week. To the north and east the snow is sunbaked and hard with about 2 inches of snow and 2 inches of hoar frost.

Weather and avy report from Avalanche.org
Yesterday was a splitter day with lots of sun, temperatures in the teens and light winds. Ridgetop winds picked up slightly last night and are currently blowing 15-25 mph out of the west to southwest. Winds will continue today as temperatures rise into the mid 20s. Valley fog will give way to sunny skies this morning before more clouds roll in tonight and drop an angstrom or two of snow (one ten-millionth of a millimeter, aka flurries). By the way, has anyone seen La Nina? She’s missing and frankly I’m upset with her.

As the snowpack strengthens and becomes less hair-trigger determining stability becomes more slope specific. A few slopes are good, some are fair, and a few are still very poor. The skiers did not dig any pits because they did not have to; Mother Nature gave them the equivalent of a flashing neon warning and they stuck to low angled terrain. In general, my confidence with this snowpack is low. I don’t completely trust it. For today, the avalanche danger remains CONSIDERABLE on slopes steeper than 35 degrees and MODERATE on less steep.

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