There will be moderate to strong southwesterly winds and foehn winds in the valleys of the north.
It will be mostly sunny in the north on Friday, but only towards the east on Saturday. It will be very cloudy in the south on both days and snow will fall above approximately 1200 m. Up to 10 cm will fall on Friday. The amounts are still very uncertain for Saturday, especially from the Simplon region to the Valle Maggia.
Deeper layers of snow will stabilise only slowly due to the weak old snowpack, especially in areas south of a line from the Rh\u00f4ne to the Rhine. With the foehn wind, easily triggerable snowdrift accumulations will develop in the north from Friday and the avalanche risk will increase slightly.
In the south, the avalanche danger will increase slightly on Friday and appreciably on Saturday, depending on the amount of fresh snow.
", "valid_from": null, "valid_until": null, "tendency_type": null}], "tendency_lead": null, "weather_review": "It was mostly sunny in the north, despite the high cloud cover. It was cloudy in the south, but mainly dry.
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At midday at 2000 m, between +1 \u00b0C in the north and -2 \u00b0C in the south
Mostly moderate southwesterly
", "weather_forecast": "On Thursday it will be mostly sunny in the north. It will be very cloudy in the south and there will be a little light snowfall in some localities above 1300 m.
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At midday at 2000 m, between +1 \u00b0C in the north and -3 \u00b0C in the south
Fresh and drifted snow from the last week is lying in many places on a faceted old snow surface or on surface hoar, especially on wind-protected shady slopes. The connection to the old snow surface is therefore poor in many places. South of a line from the Rh\u00f4ne to the Rhine, the entire snowpack is often faceted and loose. Here, avalanches may fracture down to near-ground layers. On the northern flank of the Alps, in Valais and in northern Grisons, avalanches may still become dangerously large. Many whumpfing sounds and remote triggering over larger distances are still being reported from Valais and northern Grisons. The probability of slab avalanches being triggered remains high here and the situation requires patience.
With the mild weather, the snow became wet at low and intermediate altitudes.
"}, "danger": {"key": "considerable", "number": "3", "ratings": [{"key": "considerable", "period": "all_day", "elevation": null, "subdivision": null}], "subdivision": null}, "source": "SLF", "traits": [{"prose": null, "title": "Dry avalanches", "band_id": null, "category": "dry", "problems": [{"extras": {"subdivision": "neutral", "core_zone_text": "Danger level \"considerable\" (3=) in west to northeast to southeast facing aspects above 2200m."}, "aspects": ["N", "NE", "E", "SE", "W", "NW"], "elevation": {"lower": 2200, "upper": null, "treeline": false, "treeline_side": null}, "frequency": null, "time_period": "all_day", "comment_html": "Large quantities of fresh snow and the wind-drifted snow of last week are poorly bonded with the old snowpack. Even single winter sport participants can release avalanches, including large ones. Remotely triggered avalanches are possible in isolated cases. The avalanche prone locations are difficult to recognise. Caution is to be exercised in particular in areas where the snow cover is rather shallow, as well as at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example.