Mini super cell via Bremen: lightning, heavy rain and storm warning!

Mini super cell via Bremen: lightning, heavy rain and storm warning!

In the night of Sunday, June 15, 2025, a strong storm moved over Bremen, Delmenhorst and the surrounding regions. The weather phenomenon, which the German Weather Service (DWD) classified as a mini super cell, brought violent heavy rain, stormy gusts and occasionally hurricane wind peaks. The thunderstorms formed between 11:55 p.m. and 0:25. In this short period of time, lightning was recorded over 1856 over Delmenhorst, Ganderkesee and the western part of Bremen. In addition, around 25 liters of rain per square meter in the Bremen area fell between midnight and 0:30 a.m., which is not exactly small and

The mini super cell in detail

What exactly is a mini super cell? These special thunderstorms are smaller than their large siblings, the usual super cells, and are characterized by their rotating upwind. Super cells are known for their ability to produce large hail and even tornadoes. Despite their small size, you can bring similar dangers to you, as experts from Utopia . These dangerous thunderstorms can cause considerable damage and, in the worst case, have injuries.

On Sunday morning, the fire brigade's forces reported only ten missions due to the storm. Two of these missions concerned full cellars, while the rest dealt with cleaning up off branches. Fortunately, the police in Bremen and Delmenhorst report no greater danger or chaos.

warnings of the DWD and current situation

The weather conditions in the region remains tense. According to Buten un inland pulls the storm low "Poly" over the North Sea and could provide additional wind and rain. Warnings of the DWD state that hurricane gusts with speeds of up to 110 km/h are possible between noon and evening. In Bremerhaven in particular, gusts of up to 120 km/h are announced, accompanied by thunderstorms and intensive rainfall. In Bremen, you should be prepared for wind speeds between 65 and 85 km/h and expect 5 to 10 liters of rain per square meter.

Even if the fire brigade and the technical relief organization stay on the ball and observe the situation, the authorities advise to take precautions. So cars should not be parked under trees and forests or parks should be avoided better to be on the safe side.

willingness of the citizens and traffic situation

The citizens of Bremerhaven took the warnings to heart. The Bremen Bürgerpark is asked not to be entered on Wednesday. Deutsche Bahn also observes the weather forecasts and cannot currently provide any information about possible train cancellations, but is already planning in the event of a case. The ferry connections to the East Frisian Islands could also be affected by stormy weather, with failures according to Norderney and Juist as well as blocked connections to Wangerooge and Spiekeroog.

Overall, the situation remains unsafe, and the storms already experienced have shown that even small thunderstorms, such as the recently recorded mini super cell, can have great effects. According to the DWD, everyone should take a look at the weather and, if necessary, take protective measures, the information from the DWD is particularly useful to get through the next few days.

Stay informed and safe in these stormy times!