Charles weather system of 12-13 November 2026
Date of the event:
The Charles weather system is an Atlantic low-pressure system that, according to forecasts issued on 10 November 2026 by meteorologist Andrea Vuolo, affects Piedmont between Thursday 12 and Friday 13 November 2026, with rain spread across the whole region and locally heavier phenomena along the borders with Liguria and Lombardy [1].
The weather background
Charles arrives after an earlier, faster-moving system, which passed through between the evening of Monday 9 and the morning of Tuesday 10 November, bringing the season's first snowfalls to the mountains of Piedmont [1]. According to Vuolo, a deep low-pressure circulation persists over the Atlantic, named Bruna by the Portuguese Meteorological Institute, which draws storm Charles north-eastward as it moves up from the Canary Islands towards the western Mediterranean, France and northern Italy by 12 November, before being absorbed into the Atlantic flow north of the Alps during the 13th [1].
Expected effects on Piedmont
For Piedmont, Vuolo forecasts overall moderate rain, with showers passing mainly over the southern and eastern parts of the region, particularly towards the borders with Liguria and Lombardy, where by dawn on Friday 13 November totals of up to 30-40 millimetres are expected, locally higher on the Apennine ridges and at the head of the valleys in the Maritime Alps [1]. The phenomena are instead weaker and more intermittent over the plains between the lower Turin area and the Cuneo area, which lie in the lee of the Maritime and Cottian Alps relative to the south-westerly winds accompanying the system's passage [1].
Strong southerly currents at altitude bring unusually mild air masses for the season: snowfall remains confined to high mountain areas, on average above 2,000-2,400 metres, with even higher levels during Thursday 12 especially between the Cottian, Maritime and Ligurian Alps, causing further melting of the snow cover built up in previous days [1].
Later developments
According to Vuolo's forecasts, the rain gives way to clearer skies already during Friday 13 November. Over the weekend, colder, damper air is expected to move in from the east, bringing fog and low cloud and a general drop in temperatures, which fall a few degrees below the seasonal average, particularly on Sunday [1].
Sources
- Quotidiano Piemontese — 10 November 2026