Sunday, January 16

Weather report. Five departments in red vigilance: heavy rains and floods expected in the Pyrenees

Heavy rainfall is expected on Monday in the Pyrenean departments. Meteo France has placed the Pyrénées-Atlantiques and the Landes under red “flood” vigilance, and the Hautes-Pyrénées, Haute-Garonne and Ariège, as well as the Pyrénées-Atlantiques, under red “rain and flood” vigilance.

Orange “flood” vigilance is maintained in the North, Aisne and Gers, while the Pyrénées-Orientales are on orange alert for avalanche risks, according to the latest weather report.

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Heavy rains will locally generate river overflows, or even landslides or mudslides. The rainfall intensities will gradually weaken in the afternoon, justifying the end of red vigilance and a return to orange vigilance. This rainy episode will end on Tuesday morning.

The accumulations of precipitation will become significant over all the Pyrenean departments. On the episode (in about 48 hours between Sunday and Monday), we expect cumulative amounts of around 50 to 80 mm in the plains, 100 to 130 mm in the first foothills, valleys and foothills, 150 to 250 mm in the mountains, very locally a little more.

The melting of the snowpack present below 2,000 / 2,200 m will help to reinforce these accumulations. The main avalanche risk will be below 2,000 to 2,200m above sea level where the activity of wet snow will spread from west to east.

All the massifs remain exposed to the high risk of spontaneous avalanches. Large spontaneous avalanches are possible on many slopes and can threaten mountain roads and the infrastructure of high mountain resorts.

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