Size 2 natural slab avalanche occurred some time today on the Mt Athabasca
normal route ramp. See picture. Winds blowing in crown as picture taken and
weather limited visibility all day. 1400hrs when weather lifted and slide
was noticed by Parks Canada staff. Estimate 80/100cm crown, ~300m wide and
~300 long. In the picture, you can see the fracture line at the top end of
the ramp, just above the shadow line. Note: winds were reloading the ramp
quickly and the top right exit of the ramp had not slid so good idea to be
cautious until this local slab condition has had time to settle. One may
assume that what did not slide, or is quickly reloaded with winds, is
highly suspect at least for the short term.
20cm + new snow yesterday at this elevation with more last night. Winds
depositing the new snow into a slab along the ramp pocket. A similar slide
happened July 7th, 2005 in same spot where it caught 2 climbers. One was
injured but survived the trip.
Be safe.
Garth Lemke
Public Safety Warden
ACMG Assistant Ski Guide
Garde de parc, Sécurité publique
Guide de ski auxiliaire, Association des guides de montagne canadiens
Jasper National Park of Canada | Parc national du Canada Jasper
Parks Canada | Parcs Canada
P.O. Box 10, Jasper AB T0E 1E0 | C.P. 10, Jasper (Alberta) T0E 1E0
Garth.Lemke@xxxxxxxx
Telephone | Téléphone 780-852-6158
Facsimile | Télécopieur 780-852-6135
Cellular Phone | Téléphone cellulaire 780-852-8811
Government of Canada | Gouvernement du Canada
www.pc.gc.ca/jasper
Think GREEN! Please don't print this email unless you really need to.
Soyez ÉCOLO々! N’imprimez ce courriel que si vous devez vraiment le
faire.
(See attached file: slide on athabasca aug 28 002.jpg)
slide on athabasca aug 28 002.jpg
Description: JPEG image
_______________________________________________
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.
Please check out http://acmg.ca/mcr for more information.
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