Regional water situation

Central Finland, Päijät-Häme and Kymenlaakso 6.11.

The water levels of lakes in the Kymijoki river basin have mainly risen to the normal level of the season. The heavy rainfall in the autumn has improved the water situation after water levels were below average for a long period, with the exception of the northern part of the water system. However, the amount of rainfall forecast for the next two weeks is low, and water levels will decline in places.

The water level of Lake Päijänne is at the average level of the season, and flow regulation was doubled in October due to the increased inflow caused by rainfall. Flow regulation from Kalkkinen has been 250 m3/s since the beginning of November. The discharge in the lower reaches of River Kymijoki in Kuusankoski is currently 270–280 m3/s.

On the Mäntyharju route, the water level of Lake Puula is slightly higher than usually at this time of the year, and flow regulation at Kissakoski has been increased during the past week. The water levels of Lakes Synsiä and Kyyvesi upstream from Lake Puula are at an average seasonal level.

On the Rautalampi route, water levels of lakes have mainly reached the average level of the season, and the water level of Lake Konnevesi is still slightly lower than average. Of the lakes on the Viitasaari route, the water level of Lake Keitele is slightly higher than average at the beginning of November and the water levels of, for example, Lakes Kolima and Muuruejärvi are approximately 30 cm higher than the seasonal average.

The water levels of lakes in the headwaters of the Saarijärvi route are declining, but they are still high after the rainfall in early October. For example, the water levels of Lakes Kyyjärvi and Kalmarinselkä around 30 cm above the median for the season, and the water level of Lake Pääjärvi is 45 cm above the median for the season.