Regional water situation

Eastern and Southeast Finland 9.9.

In the Vuoksi river basin, the weather is forecast to remain warm and dry in the next few days. Warm weather increases evaporation, which will cause water levels in lakes to decline over the next few weeks. Of the large lakes, the water levels of Lakes Pielinen and Kallavesi are forecast to fall significantly lower than usual during September, which would mean that their water levels would be below the average level of the season.

The water level in Lake Saimaa has fallen from this spring’s higher-than-usual flood peak close to the seasonal average level. According to the forecast, the water level will decline by 20–40 cm by the end of October. The water level is forecast to fall slightly below the average seasonal level in October.

The water level of Lake Pielinen has continued to decline and is now close to the seasonal average. According to the forecast, the water level will decline by 15–30 cm by the end of September. The water level will probably remain lower than usual throughout the autumn.

The water level of Lake Kallavesi is slightly below its average level of the season. The water level is forecast to drop by 5–10 cm in September. The water level may fall below 81.25 m (NN) in late September, which may cause nuisance to shipping and boat traffic.