Central Grisons and Anterior Rhine

Zervreila

Fri 3 Apr Sunrise 06:58 19:54 Overcast

Hard-to-read day. Persistent or gliding-snow problems can mask the real risk.

Day Risk Profile

Considerable
All day

Avalanche Problems

Dry snow level 3 Wind slab + Persistent weak layers dry All day
N, NE, E, SE, SW, W, NW
above 2200m
The wind slabs of the last few days are in some cases still prone to triggering. Single winter sport participants can release avalanches. Additionally avalanches can also be triggered in deep layers and reach large size. This applies in particular on steep, little used shady slopes. These avalanche prone locations are barely recognisable, even to the trained eye. Backcountry touring and other off-piste activities call for experience in the assessment of avalanche danger and careful route selection.

Snowpack & Weather

Snowpack

On the northern flank of the Alps, the large volumes of fresh and drifted snow from the most recent period of precipitation are continuing to stabilize. This new and drifted snow is lying on faceted weak layers, especially on shady slopes, and avalanches can still be triggered in these weak layers, especially in areas with less snowcover. These avalanches may become large in isolated cases.

In the inneralpine regions of Valais and especially Grisons, weak layers in the middle of the snowpack are additionally still prone to triggering in some places, with avalanches possibly starting even in near-ground weak layers in isolated cases.

As temperatures continue to rise, gliding avalanche activity is increasing, for the time being primarily at middle altitudes on the northern flank of the Alps.

Weather review for Thursday

Conditions were mostly clear overnight to Thursday, with some cloudy intervals on the eastern part of the northern flank of the Alps and in Grisons. During the day, conditions were mostly sunny in the west and south, with the east seeing only occasional sun.

Fresh snow

-

Temperature

At midday at 2000 m, between -4 °C in the north and +2 °C in the south

Wind

Moderate to strong northeasterly

Weather forecast to Friday

Overnight to Friday, conditions will be mostly clear in the west and south, with the eastern part of the northern flank of the Alps and Grisons seeing only clear intervals. A little snow may fall in these areas during the night above 1000 m. During the day, it will become increasingly sunny in the east. Elsewhere conditions will be mostly sunny.

Fresh snow

-

Temperature

At midday at 2000 m, between -3 °C in the north and +3 °C in the south

Wind

  • Moderate northerly on the northern Alpine ridge, on the main Alpine ridge and on the southern flank of the Alps.
  • Elsewhere light
Outlook to Sunday

Overnight to Saturday, there will be cloudy intervals in the north, with some precipitation in the east. The night will be clear on the southern flank of the Alps, and it will be mostly sunny during the daytime. Conditions will be clear overnight to Sunday and it will be mostly sunny during the daytime. The northerly wind will ease overnight to Saturday, becoming mostly light, and will back to westerly on Sunday. Temperatures will become appreciably warmer. On Sunday, the zero-degree level will be at 2800 m.

The danger of dry avalanches will continue to decrease. The danger of wet and gliding avalanches will increase over the course of each day. Tours and hut ascents should be started early and finished in good time.

Issued

3 Apr 06:00 UTC

Valid until

3 Apr 15:00 UTC

Next update

3 Apr 15:00 UTC

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