In the lowlands there were sometimes violent thunderstorms. They brought a lot of precipitation and a cooling – for now.
Heat thunderstorms in the Swiss Plateau: hail fell in the cantons of Aargau and Solothurn.
Video: 20 minutes
On Sunday the temperatures reached a widespread 29 to 31 degrees, in many places it was quite sunny, as MeteoNews had announced in the morning. In the midland, the hot day came to an abrupt end in the evening.
In the cantons of Aargau and Solothurn, for example, it rained heavily, as reader videos show. “I’ve never seen anything like it. They were huge grains, as big as ping-pong balls, “says an eyewitness to”20 minutes».
Between the Lower Valais and north-western Switzerland, 16,000 lightning bolts discharged within three hours on Sunday evening, as MeteoNews tweeted. It is not over yet, because even after midnight the thunderstorm continues in the east and northeast of Switzerland.
Meteorologists had announced heat thunderstorms. “The high pressure ridge responsible for this summery weather is gradually shifting eastward, which destabilizes the air,” said MeteoNews. This leads to strong heat thunderstorms in the Alps and in the Jura.
According to the meteorologists, the dissolving high makes room for a cold front coming from the west. Therefore, showers and thunderstorms are to be expected in the later evening and at night, even in the lowlands. Strong gusts, heavy rain or hailstorm are possible locally.
Cooling down only temporarily
After the summer weekend, Monday and Tuesday bring a temporary cooling off with inconsistent and repeatedly wet weather. According to Meteo-News, the temperatures go down to 20 to 25 degrees.
“The autumn-like start of the week does not yet seal the end of summer,” the message continues. Because from Wednesday the sun shows up more often and the temperatures rise. On Thursday it could be around 30 degrees again, on Friday even hotter.
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