1. The navigational situation may contradict reality due to the temporal unavailability of coordinated data caused by intensive construction and hydraulic engineering works in the area covered by the chart. Mariners are requested to exercise particular caution.
2. With the winds from NE low level of the surge (level stoping) up to 0.5m is observed. 
3. In the areas of the foul ground on the ground and near-bottom layer there are remains of the technical means of fishing activities.