We are at the end of the season… even if the last week was similar to February, with air temperatures significantly lower than the average of the period and light snowfall. Thus we could enjoy the last off-piste runs… now it’s time for biking!
Slab avalanche Monte Vago
Powder on North aspects of Monte delle Rezze
Way down from Monte delle Rezze
Wet snow avalanches on Passo della Forcola
Way down to the village
In the alpine, on Northern aspects, the fresh snow is still loose and fun for skiing. Mainly close to ridges, the snow cover is wind affected with some areas with hard and others with soft snow. On Southern aspects there are melt-freeze crusts, more or less hard, which get softener during the warmer hours of the day. In these locations skiing conditions are spring-like and, with the proper timing, you could enjoy some nice turns on spring snow.
SNOW STABILITY AND OBSERVED AVALANCHES
Most of the avalanches were recorded on Friday April 22nd, when the high air temperatures and the limited night freezing, caused wet snow instability problems; moreover, there were some wind slabs, which could be triggered by the loading of a single skier. From Saturday to Thursday, the low air temperatures froze the snow cover, increasing its strength. The only stability problems were related to wind slabs formed with the snowfall and moderate/strong winds. Due to this problem, the most critical days were Wednesday and Thursday.
The snow cover did not significantly change; the few fresh snow came last week completely melted in the village; whereas, in the alpine, the snow high is actually 150cm. Above the treeline, the snow cover is wind affected, especially on the ridges and crests; this effect increases with altitude. On the snow surface a melt-freeze crust formed, which is more or less hard depending on elevation and aspects. In the alpine, on Northern aspects, a loose snow layer characterizes the surface. In the alpine, the middle part of the snow cover is well bounded. Due to the low air temperature, only on Southern aspects, the snowpack undergoes to a daily freeze and melt cycle. Where the snow is on site since the end of December, persistent weak layers characterize the base. Below the treeline, the Southern aspects are mainly snow free. WEATHER During last week we had air temperatures lower than the average of the season; it was sunny only for few hours and the days were mainly cloudy. Moreover, cold fronts brought light snowfalls, especially between Sunday and Tuesday. But still, the snow amounts were not high (less than 10cm in the village and about 30cm in the alpine).