The shore water froze over at 7am on Wednesday, but there is still no access to the ice.
The Kallavesi River froze over on Wednesday 14 December at 7 am.
Snow on the ice slows down the consolidation of the ice and the detection of weak spots.
According to Lehtonen, boats that have been towed to the shore should be checked.
In the spring, the water level rises significantly from the current level. It can cause damage if the boat is not raised high enough.