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Heavy rainstorms hit Alta Valle after 20 day-long drought; mudslide warning issued due to the inclement weather in August

A prolonged dry spell has persisted in the Aosta plain since the 27th of July, broken only by two quick thunderstorms on Ferragosto. Forecasts predict two rainy afternoons ahead, with heavy rainfall anticipated in certain areas as well.

Heavy August thunderstorms following 20 days of drought; yellow warning issued for potential...
Heavy August thunderstorms following 20 days of drought; yellow warning issued for potential landslides in Alta Valle

Heavy rainstorms hit Alta Valle after 20 day-long drought; mudslide warning issued due to the inclement weather in August

Thunderstorms are set to hit several regions in the Italian Alps tomorrow, according to meteorological predictions. The storm activity is expected to move eastwards, starting from the western regions and progressing towards the east.

The areas particularly at risk include the Upper Valley, the Gran Paradiso area, Coumbra Freide, and the head of Valtournenche. The thunderstorms could be severe in the Gran Paradiso valleys, with up to 90 millimeters of rainfall expected in a 24-hour period. In the Upper Valley, the rainfall is predicted to be moderate, up to 45 millimeters in 24 hours.

However, the thunderstorm activity is not expected to be uniform throughout the Valley. The storms are expected to be locally intense on the mountain borders with Piedmont, where up to 90 millimeters of rainfall may also be experienced. Elsewhere in the Valley, the storms are expected to be weak.

The storms could cause several problems, including issues with water drainage networks, flooding of underground spaces, and solid transport phenomena in the mountainous sections of torrent basins. These conditions could lead to rockfalls and shallow landslides, which could cause temporary road closures, localized damage to infrastructure, individual buildings, and human activities.

An ordinary alert (yellow) has been issued for possible debris flows and secondary torrent overflows in the affected regions. It is important for residents and visitors to stay informed and take necessary precautions to ensure their safety.

The responsible authority for issuing the yellow alert for possible mudslides and flooding of tributaries in the mentioned regions is not explicitly stated in the search results provided. It is recommended to check with local authorities for the most accurate and up-to-date information.

In conclusion, thunderstorms are expected to hit several regions in the Italian Alps tomorrow, with the Gran Paradiso valleys and the Upper Valley being particularly at risk. Residents and visitors are advised to stay informed and take necessary precautions to ensure their safety.

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