Avalanche Conditions

Avalanche Conditions

Conditions observed in the backcountry of Gudauri during an AST2 avalanche course.
On 10 and 11 January we skied around Kobi and Sadzele. We found evidence of a persistent weak layer, shown by two skier-triggered (size 2) avalanches on E- and NE aspects, both at ca. 3000m elevation. We avoided steep high-consequence terrain. This layer should still be considered reactive on E-NE-N-NW aspects above 2500m, particularly with the new storm snow that fell during 12-14 January on top.
On 12 January we skied around Lomisi (Lomisa) monastery, up to 2200m. We observed about 20-25 cm of HST, with good skiing above 1700m. Stability was decreasing due to strong wind loading near ridge top and below. Cracking around ridge top was observed on a way down. Below 1700m, the snow was moist and sitting on a rain crust with facets on top. One avalanche was observed – skier-triggered size 1 avalanche, NW aspect, 1600m, on steep convex terrain feature. With more snow and wind loading over next two days, we are suspecting dangerous avalanche conditions, with a mix of wind slabs above 2000m and storm slabs below 1700m.
On 14 January we skied around Arakhveti to 2000m. We observed about 55cm of HST, resulting in good skiing quality. Below 1800m that snow is sitting on a crust with facets on top, and the triggering of avalanches is likely, as shown by a size 1 avalanche, skier-remote (15 m distance), NE aspect, 1640m. In addition, we saw a second avalanche nearby, likely natural release, size 1-1.5. Several “whumpfs” and cracking of snow were noted on way. Stability increased slightly above 1800m due to better bonding of the storm snow to the crust below. We stayed on low-angle terrain and chose conservative ski lines.
At the moment storm slabs due to 55 cm or more HST should be expected on all aspects in the wider Lomisi and Gudauri area. This storm snow is covering older wind slabs and persistent weak layer above ca. 2500m and E-NE-N-NW aspects. Take great caution, choose low-angle terrain and make conservative route choices until the snow has had time to settle and bond. This will take several days.

Grigory Mintsev (ACMG Ski Guide)
Peter Schön (CAA professional member, LV 3)

On The Map

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.