A massive wave arrived, but thanks to better coordination and sandbagging, the city remained largely dry despite levels reaching 650 cm .

A occurs when heavy or prolonged rainfall (often combined with snowmelt) in the upper reaches of the Odra and its tributaries (such as the Nysa Kłodzka) causes water levels to rise rapidly. As this volume of water moves downstream, it forms a "wave" that eventually reaches Wrocław. The Wrocław Water Node (WWN)

The Odra-Widawa bypass allows a portion of the floodwater to be diverted around the city center.

When a flood wave is imminent, the and city officials activate several protocols:

The water level at Trestno reached 724 cm , causing widespread devastation.

A massive dry polder upstream designed to "shave" the peak of the flood wave before it reaches the city.

To protect the city, Wrocław utilizes a complex hydraulic system called the (Wrocławski Węzeł Wodny). This system was significantly modernized following the 1997 floods and includes: