Danger of flooding on the Baltic Sea: Current water levels and warnings

Danger of flooding on the Baltic Sea: Current water levels and warnings

On November 27, 2025, the situation along the Baltic Sea coast in Mecklenburg-Western Pomerania is critical. As the Baltic Sea newspaper reported, the water levels in Wismar, Warnemünde, Althagen, Barth, Stralsund, Sassnitz and Greifswald are under special observation. The weather report shows that heavy rains in southern Germany have led to flooding and flooding since Friday, making the situation even worse star reported.

The current values ​​in Warnemünde show that the average water level is 507 cm. The mean low water (MNW) is 407 cm and the mean high water (MHW) is 617 cm. Historically, the highest flood level was 770 cm, which was measured on November 13, 1872. In comparison, the lowest water level of 332 cm was recorded on October 18, 1967. It is important for the population to know these values, especially since the storm surge classes are relevant: A storm surge occurs with a rise of 1.00 to 1.25 m above the mean water level.

Storm surge warnings and safety measures

Flood warnings come from various institutions, including federal, state and police. The flood control center activates alarm messages when water levels are dangerous. Safety promotion occurs across numerous channels: from radio and television to social media to digital billboards and personal alerts. In the event of a storm surge, residents should turn off electricity and gas, secure important items and stock up on supplies. The shore should be avoided at all costs. Emergency numbers available are 112 for the fire department and 110 for the police.

The last severe storm surge in October caused major damage, including damages of around 56 million euros. The city of Sassnitz reported a financial requirement of 42 million euros to restore its infrastructure. The tourist infrastructure, harbor protection systems and significant sand losses on beaches and dunes are particularly affected.

Statewide flood warnings

The heavy rains in southern Germany have also influenced flood warnings. In Kißlegg, for example, 130 liters of rain per square meter fell within 24 hours and in Bad Wörishofen 129 liters, which significantly exceeds the monthly average. The resulting flood warnings show the current water levels on a map in different colors: red indicates large flood warnings, purple stands for very large floods, while orange stands for medium flood reports and yellow for small flood reports.

With all this information, citizens are called upon to be vigilant and take timely action to protect themselves and their property. The situation remains tense and will continue to be monitored closely.