The German Weather Service warns of continuous heavy rain on the edge of the Alps. In the course of Friday and Saturday, “extremely heavy continuous rain” between 50 and 140 liters per square meter is possible within 48 hours, intensified by heavy thunderstorms. The DWD announced this on Friday. It could also rain heavily in the rest of Old Bavaria, with amounts between 50 and 80 liters per square meter. The Weilheim Water Management Office warned of the risk of flooding for built-up areas in the Garmisch-Partenkirchen district.
As a precaution, the Bavarian Red Cross put the air rescue service of the water rescue service on increased standby. According to the weather service, the trigger is a high altitude low that moves from the Lake Constance area over the south of Bavaria during the day. Smaller bodies of water in particular could therefore rise sharply within a short time and burst their banks, the Bavarian flood news service said on its website. “Regionally, larger regions can also be affected by flooding.”
Rivers such as the Ammer and Isar could partly reach flood notification level 1, as reported by the responsible water management authorities. That could mean “smaller proliferations in places”. Reporting level 2 is also possible on the Isar in the Munich area, so agricultural and forestry areas could be flooded – there could also be slight traffic obstructions on main roads and municipal roads. For the Loisach, reaching reporting level 2 is “probable”, higher reporting levels cannot be ruled out there.
Due to the “very dynamic weather development” it was still unclear in the morning exactly where streams and rivers could overflow their banks. “However, the risk of being hit by heavy heavy rain increases towards the south and east,” wrote the flood experts.
The Bavarian Red Cross has ordered alarm level 1 of 3 for the air rescuers of the water rescue service, as a BRK spokesman announced. The “Air Rescue Specialists” are emergency services who are flown over the operational area in a helicopter and can rescue injured or helpless people. Most recently, according to the BRK, the air rescuers from the Bavarian water rescue service were deployed during the Ahr valley flood in Rhineland-Palatinate.
Due to a storm warning in Munich, the European Athletics Championships in Munich had to be temporarily interrupted on Thursday evening.
Also on Saturday, showers and thunderstorms are expected from the north-west, especially in the afternoon. The DWD publishes current information on its website.