Regional water situation

Eastern and Southeast Finland 5.11.

In the Vuoksi river basin, the early autumn has been rainier than usual, especially in the regions of North Savo and North Karelia. In fact, the water levels of many natural lakes are higher than normal. Rainfall will be lower in early November, which is why the water levels of small and medium lakes are forecast to start declining. However, the water level of Lake Saimaa is forecast to continue rising slowly.

The water level of Lake Kallavesi is approximately 35 cm above its seasonal average. Additional flow regulation was initiated via the Konnus canal and Naapuskoski in early October to control the rise of the water level. The water level started declining last week and has now declined by around 5 cm. The water level is forecast to decline by a further 0–15 cm by the end of November. In December, the water level will probably continue to decline unless the weather is milder and rainier than normal at the end of the year.

The water level of Lake Pielinen is now approximately 30 cm above its seasonal average. According to the forecast, the water level will remain close to the current level or rise slightly in November. According to the forecast, the water level will remain slightly higher than usual at the end of the year.

The water level of Lake Saimaa is approximately 25 cm below the long-term seasonal average. Normal flow regulation has been initiated in Lake Saimaa after exceptional flow regulation that lasted all spring and summer. The water level is forecast to rise by 10–35 cm by the end of the year.