This Saturday, May 3, 2025, around 5.15 p.m., the city of Lyon was struck by a thunderstorm of rare intensity, accompanied by strong hailstorms. This meteorological event surprised the inhabitants, when the day had started under a mild sky and temperatures surrounding the 24 ° C.
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After a slight lull, new gusts appeared around 7:30 p.m., accompanied by hailstones of lower size but in very high density, in the middle of violent gusts of wind.
It was in Paris that the first hail falls appeared on France this Saturday at 4 p.m., arriving from the west, from the Yvelines, to reach the capital, with gusts projecting hailstones of several centimeters, going as far as the size of ping-pong bullets.
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At 4:30 p.m., it was in the West Lyon that the storm episode began, heading towards Lyon, with the formation of hailstorms.
Shortly after 4.30 p.m., two hail showers fell, notably crossing the municipalities of Meys and Aveize, before continuing their journey towards Lyon, via the Brévenne valley. In the Montchat district, in the third arrondissement of Lyon, everything had to be sheltered against hail.
At 9 p.m., the Keraunos site listed nearly 2,000 lightning impacts in Rhône-Alpes in the last 24 hours.
The storm, which fell on the Lyon metropolis, was preceded by unusual warmth for the season, creating conditions conducive to violent storm phenomena. Gusts of wind and intense precipitation accompanied the fall of hailstones, some reaching several centimeters in diameter.
Caution when traveling. It is advisable to remain informed of the weather reports and to follow the safety instructions in the event of new stormy episodes.