[citation needed] The disruption to the transport infrastructure also has an impact on transit traffic with the interruption of the A13 motorway and on tourism in parts of the Swiss Alps.

Heavy rainfall on 9 and 10 June caused water levels to rise and local flooding throughout western and northern Switzerland.

Around 20 June, there was another weather situation with a low pressure area and a strong southerly flow, which brought moist air masses into the Alpine region.

On Friday, 21 June 2024, a thunderstorm front brought persistent heavy rainfall in the Alpine region and also in the Jura Mountains and in areas near the border of neighboring countries.

[14] In Mattertal, the level of the Mattervispa rose so much that the stream flooded streets near the banks in Zermatt and the ground floors of several buildings.

Landslides interrupted the route of the Matterhorn Gotthard Bahn between Visp and Täsch and also the cantonal road in the Mattertal, so that Zermatt was cut off from the outside world.

The Moesa, which drains the valley to the Ticino, led to a rapid rise in the water level of 650 m3/s at the Lumino/Sassello gauge station on the evening of 21 June 2024.

[17] During the night of 22 June, rock avalanches and masses of mud fell on several mountain slopes in the municipalities of Lostallo and Soazza, flooding cultivated land.

[18] Several hydroelectric power plants owned by the energy company Axpo had to cease operations; dozens of people were evacuated from their homes.

The Rià de la Molera torrent, or Riale Molera in Italian, begins in the mountain valley in the municipalities of Cama and Santa Maria in Calanca and flows into the Moesa from the right near Sorte, a district of the municipality of Lostallo; West of the river bridge (401 m above sea level), the younger part of the village, Campagna de Sort, stands on the old debris cone of the stream, which was created by earlier mudslides, on the Hauptstrasse 13 and at the former stop of the former Mesolcina railway.

Because the water-soaked loose material in the Molera valley became unstable, a mud and rubble avalanche, which also carried away large boulders, started in the mountain area.

The debris avalanche broke out of the previous stream bed, covered the meadow area and destroyed several houses in Sorte, interrupted the cantonal road and buried the western bridgehead of the Moesa bridge.

In this section in the municipality of Soazza, the river valley is designated as the "Pomareda" nature reserve in the Federal Inventory of Floodplain Areas of National Importance.

[25] The Val d'Orbel stream on the east side of the valley carried debris with a volume of around 50,000 m3 (1,800,000 cu ft) due to the rainfall.

The north-south route through the San Bernardino tunnel, which often carries around 15,000 vehicles a day in the summer months, was unusable for around two weeks.

On 24 June, excavation work began to clear the blocked riverbed of the Moesa near Buffalora in order to then repair the damaged motorway embankment.