Thunderstorms swept across central and eastern Switzerland
Animation of the radar images from yesterday, April 23, 2023 between 12 and 18 UTC, or 14:00 to 20:00 local time. The thunderstorm cell between 14:15 and 14:45 UTC over Lucerne was relatively lightning-intensive, as was the thunderstorm cell between 16:00 and 16:30 UTC in eastern Switzerland.
Animation of the radar images from yesterday, April 23, 2023 between 12 and 18 UTC, or 14:00 to 20:00 local time. The thunderstorm cell between 14:15 and 14:45 UTC over Lucerne was relatively lightning-intensive, as was the thunderstorm cell between 16:00 and 16:30 UTC in eastern Switzerland.
Yesterday evening, a cold front mov from west to east across Switzerland. In the run-up to this cold front, several thunderstorms develop, particularly in central and eastern Switzerland.
Lightning (yellow symbols) and precipitation (blue areas) yesterday 23.4.23 between 12 and 18 UTC: Many lightning strikes were record, especially in central
Switzerland as well as in eastern Switzerland
Lightning (yellow symbols) and precipitation (blue areas) yesterday 23.4.23 between 12 and 18 UTC: Many lightning strikes were record, especially in central Switzerland and eastern Switzerland. (Source: Météorage, MeteoSwiss)
Yesterday’s thunderstorm cells were particularly intense in central and portugal phone number library eastern Switzerland. But some lightning was also observ in the Zurich region. In addition to lightning and thunder, the thunderstorm cells also brought sleet, which was confirm in various weather reports.
Sleet on chairs and flowerbs
Thanks for yesterday’s weather reports from Abtiwl (SG), Stein (AR) and Gais (AR)
What does it take for thunderstorms to form?
At the beginning of the season, we would like to briefly remind ourselves how thunderstorms form and what “ingrients” they ne.
Thunderstorms are characteriz by deep convection (visible as high-reaching cumulus clouds), which triggers lightning as a result of complex processes. For this we ne sufficient moisture, instability and a lifting mechanism. You can find out more about the formation of thunderstorms, for example
here
.
We achieve unstable stratification when the temperature difference sign up to the public register of oppositions. between the lower and upper layers is large enough. To do this, we can heat the lower layers, typically by means of solar radiation. Or we can cool the upper layers. This is preferably done by bringing in so-call cold air from high altitudes. Ideally, we have a combination of both.
Summer thunderstorms more frequent than winter thunderstorms
In order to warm the lower layers, sunlight is ne, which is of course alb directory strongest in the summer months. You know this when you think about the risk of sunburn: this is greatest in the summer months. But even in April and May, the sun’s rays are already strong (and depending on your skin type, sunburn is quite possible).
