According to measurements by the Environment Agency, the risk of extensive and strong blooms is moderate in the northern part of the main basin of the Baltic Sea, mainly in the Archipelago Sea and in the southern part of the Bothnian Sea. In the Gulf of Bothnia and the Eastern Gulf of Finland, the risk is low.

However, the realization of the risk assessment will be determined by the summer weather. The Agency's estimate is based on average summer weather.