According to the Finnish Environment Institute, the risk of flooding increases the longer the spring is delayed.
The Finnish Environment Institute says that warming weather towards the end of the week may raise river levels in southern Finland.
– The rains have now turned to water. If temperatures stay above freezing at night, the snow will start to melt in earnest.
On the other hand, the short-term warming does not yet make a big dent in large snow masses, because, according to Myllyniemi, large amounts of snow retain water better.
For example, there is a lot of snow in Southeastern Finland, but severe spring floods are still not expected. Myllyniemi estimates that the actual flood peak will only occur around mid-April.
The longer the spring arrival stretches out, the greater the flood risk increases
– It is entirely possible that there will be periods of frost and even more snow. When the weather warms up quickly, the snow melts all at once. If it still rains, the flood recipe is guaranteed, says Myllyniemi.
Southeast Finland has suffered from violent spring floods in recent years. Historically, especially the Kymijoki region has been an area prone to flood risks.