Yesterday, it was as warm as 29.9 degrees in Helsingborg. This afternoon, the forecast indicates 18 degrees and rain.
When we see these shifts, the risk of thunderstorms increases. We have isolated clouds that will appear during the day with so-called heat thunderstorms, says Emma Härenstam, meteorologist at SMHI.
According to her, it was a heat thunderstorm that unexpectedly struck Lidingö at the end of August – and led to several boys having to visit the hospital. Two of them are still being treated in the hospital.
Heat thunderstorms are difficult to predict. It's like boiling water in a pot and predicting where the first bubble will appear.
As far as I can see, it will affect the southwestern parts of the country in the next few hours. It looks like it will die out later in the day, and then a front rain will take over.
The front rain will move in from the southwest during the day and reach the mountainous regions by tomorrow afternoon. The front will also bring a risk of thunderstorms, a so-called prolonged front thunderstorm.
In principle, it will affect the entire country. At this point, there is nothing that reaches warning levels. We will get heavy rain with some scattered thunderstorms. So, there may be thunderstorms here and there.
