Four departments on orange snow-ice vigilance, two others for avalanches | EUROtoday

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Dn sure departments, the month of March begins with snow. Lozère and Ardèche will be a part of the Loire and Haute-Loire on snow-ice alert this Sunday, whereas Savoie and the Hautes-Alpes have been positioned on orange avalanche alert by Météo-France. “Uncertainty remains over the quantities of snow expected in the plains by isothermal conditions in the Rhône valley,” warns the company on its web site.

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And to finish: these portions will stay “low in principle but it is advisable to remain cautious”. This disturbance, affecting a big south-eastern quarter of the nation, will trigger snow at low altitude, as much as round 400 meters.

The anticipated portions are of the order of 5 to 10 cm from 500 m altitude, greater than 20 cm above 1000 meters domestically 40 cm or much more. “This sometimes heavy snow could make traffic conditions difficult on certain roads and cause some damage to vegetation or certain sensitive infrastructures (cables),” warns Météo-France. Beyond 1000 meters, the snow is lighter and “the formation of snowdrifts will require additional vigilance”.

Possible extension of orange vigilance

According to the company, it is usually essential to stay cautious in different departments of Rhône-Alpes, equivalent to Isère and Drôme, the place an “extension of the orange “snow-ice” vigilance overlaying the day of Sunday is feasible “.

READ ALSO Why the chilly brings local weather skeptics out of the woodsSavoie and Hautes-Alpes are affected by snow precipitation, concentrated within the border areas of Haute-Maurienne and Queyras and which happen “approximately every two to four years”. “The probability of spontaneous avalanche outbreaks increases throughout Sunday afternoon and reaches a “strong” degree (avalanche danger index of 4 on a scale of 5),” we will learn on the Météo-France web site.

“Some avalanches could affect mountain infrastructure and threaten mountain roads,” continues the institute. This avalanche state of affairs must be monitored till Monday morning, and can “decrease significantly” thereafter.