Chad Rigby & I did an overnight trip to Sapphire Col Feb 3-4th. On Feb
3rd the valley bottom temps were 0 degrees at the base of the Mouse Trap
(1500m) and there was 30cm of storm snow over the Jan 30 rain crust. At
this elevation in the drainage we found 8-10mm surface hoar on the rain
crust. Beyond the Mouse Trap in "the Ravens" area at approximately 1900m
(west aspect) there was a size 2 natural avalanche 30-40cm deep 35m wide
which I suspect ran on surface hoar.
We did a number of quick checks for the surface hoar and we did not see
it in the open treeline and alpine areas between the Mouse Trap and
Sapphire col. The buried rain crust was only 1cm thick at 2050m and
became a hard wind layer at higher elevations, with 40cm plus of low
density storm snow on top making for deep trail breaking.
There was very little wind effect in this area and the storm snow had
not settled into a slab yet. I suspect this will change rapidly with the
current snowfall and forecasted rise in temps.
As we left the Asulkan drainage we noticed a new slab avalanche which I
suspect was a skier accidental down 30cm, 20m wide in a steep creek in the
"Mushroom people" area. Again I think this was on a pocket of surface
hoar on the rain crust.
Have a great winter
Kirsten
Kirsten Knechtel
ACMG/IFMGA Mountain Guide
kirsten.knechtel@xxxxxxxxx
www.kirstenknechtel.com
--
On 15-02-02 7:38 PM, "Public Mountain Conditions Report"
<mcr@xxxxxxxxxxxxxx> wrote:
>Just out of O¹Hara today. The ice climbs on Wiwaxy peak are about as big
>as I have ever seen them.
>
>"Sad and Beautiful World" looks good and has a parallel line that I don¹t
>remember seeing before. (Happy and Ugly World?) "Cool Water Good Stone"
>is ice from top to bottom. (Cool Water, No Stone?) "Girls Day Out" is fat
>(best leave that one alone:) and the snow on the approach was rock hard
>as of this afternoon.
>
>Ski travel was good and we had no real concerns on fairly steep terrain
>treeline and below. There must be some windslabs up high though as the
>wind picked up today. The road was beautifully track set for classic and
>skate skiing this afternoon if you want to get your nordic on.
>
>Larry Stanier
>Mountain Guide
>laristan@xxxxxxxxx
>_______________________________________________
>These observations and opinions are those of the person who submitted
>them. The ACMG and its members take no responsibility for errors,
>omissions, or lapses in continuity. Conditions differ greatly over time
>and space due to the variable nature of mountain weather and terrain.
>Application of this information provides no guarantee of increased
>safety. Do not use the Mountain Conditions Report as the sole factor in
>planning trips or making decisions in the field.
>See http://acmg.ca/mcr for more information.
>See http://informalex.org/subscribe.shtml#unsubscribe to remove your name
>from this list.
_______________________________________________
These observations and opinions are those of the person who submitted them. The
ACMG and its members take no responsibility for errors, omissions, or lapses in
continuity. Conditions differ greatly over time and space due to the variable
nature of mountain weather and terrain. Application of this information
provides no guarantee of increased safety. Do not use the Mountain Conditions
Report as the sole factor in planning trips or making decisions in the field.
See http://acmg.ca/mcr for more information.
See http://informalex.org/subscribe.shtml#unsubscribe to remove your name from
this list.
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