Tonight, the water level could reach one meter above the daily high tide along the Baltic Sea coasts.

The water level can reach one meter above normal along the Baltic Sea coasts tonight

In Sønderborg, the municipality is providing sand and bags to residents ahead of the elevated water level.

Low-lying areas in most of the Baltic Sea region may be flooded, and port areas may also end up underwater. Archive photo (Photo: © Henning Bagger, Ritzau Scanpix) 33 minutes ago

From late Saturday evening until Sunday morning, there is a risk of elevated water levels along the Baltic Sea coasts.

The water level can reach between 1.1 and 1.4 meters above normal, and the highest levels are expected on Sunday morning along the Baltic Sea coasts in South Jutland and the South Jutland fjords, says DR's weather presenter Anders Brandt.

"The forecasts are not completely certain about how high the water level will be, but low-lying areas in most of the Baltic Sea region may be flooded, and port areas may also end up underwater," he says.

Large amounts of water are being pushed from the eastern part of the Baltic Sea into the Danish part of the Baltic Sea this evening and tonight. Archive photo (Photo: © Nils Meilvang, Ritzau Scanpix)

The Danish Meteorological Institute (DMI) has also issued a warning about elevated water levels in the western part of the Baltic Sea. This applies from Saturday at 11:00 PM until Sunday morning at 10:00 AM.

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Low pressure causes elevated water levels

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Anders Brandt explains that the elevated water level is associated with a low-pressure system moving from east to west just south of Denmark.

"This brings freshening winds of up to near gale force from the northeast down through the Baltic Sea. As a result, large amounts of water are being pushed from the eastern part of the Baltic Sea this evening and tonight into the Danish part of the Baltic Sea."

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Sandbags distributed in Sønderborg

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One of the places where the water level could reach over 1.3 meters is in Sønderborg. If that happens, it will be the third time within the last seven years that the water level has been higher in this South Jutland town, says Anders Brandt.

In Sønderborg, the water was high during the storm surge in October 2023. Archive photo (Photo: © Mads Claus Rasmussen, Ritzau Scanpix)

In 2022, the water level in Sønderborg reached 1.50 meters, while during the storm surge in October 2023 – the most violent in over 100 years – it peaked at 2.10 meters.

In Sønderborg, the municipality has cordoned off an area over the weekend. In addition, since Friday afternoon, residents have been able to pick up sand and bags at two locations in the town.

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