PIEDMONT – Confirmation arrives from Arpa Piemonte on theyellow alert For avalanches on northern Piedmont and from tomorrow also for hydrogeological risk.
This afternoon precipitation in the central-northern part with sustained ventilation in the mountains.
The forecast for Easter
Expected a marked worsening for the Easter weekend.
A vast and deep area of low pressure extends across central-western Europe, conveying intense southern humid flows to Piedmont. This configuration will bring precipitation starting from today’s afternoon-evening, but limited to the central-northern part of the region, with snow level at 1800-1900 m.
Tomorrow the phenomena will be widespread and more intense in northern and north-western Piedmont, including thunderstorms, with snowfalls above 1600-1700 m.
On Sunday the low pressure area will continue to remain stationary, still bringing moderate rainfall across the entire Piedmontese territory, and heavy or locally very heavy rainfall not only in the northern sector but also between the Maritime and Ligurian Alps, with snow levels decreasing in the morning up to 1300-1400 m, progressively increasing up to 1700-1800 m in the evening.
After the disturbed week with abundant snowfall in the mountains, which on Tuesday and Wednesday also reached the valley outlets and locally the first stretches of adjacent plains, new and abundant quantities of snow in the mountains are expected for the Easter weekend.
Until Thursday, the overall accumulations in the Alpine sectors recorded, at around 2000m, 80-100 cm in the Monregalesi Valleys and Maritime Alps, with decreasing values up to the western sectors of the Cozie Nord and Graie with 10-30cm, and then returning to values of 60-80 cm on the northern sectors.
On Saturday and subsequently also on the southern sectors on Sunday, on this new snow, not yet completely consolidated, a considerable thickness of fresh snow will be deposited mainly on the northern and north-western sectors.
The avalanche danger level is expected to increase to 4-Strong in the sectors most affected by snowfall, with large and very large avalanches possible. In relation to the trend of actual snow accumulations that will be recorded, especially bulletin alert 29032024 at the end of the day on Sunday, local avalanche events cannot be ruled out which could significantly affect the anthropic infrastructures of the valley floor.
A vast and deep cyclonic area of Atlantic origin, centered on the British Isles, conveys intense southern humid flows onto Piedmont which cause widespread rainfall; the most intense phenomena are expected in the northern sector and between the Maritime and Ligurian Alps on Sunday.
Thunderstorm phenomena cannot be ruled out in the north-eastern part of the region on Saturday afternoon and Sunday evening. Further increase in the level of avalanche danger.
Strong southerly winds at altitude may also bring sand from North Africa. The situation will be in improvement for Monday Easter Monday.
