It was in the news that people go and get stuck somewhere due to the floods and that takes resources from emergency workers. Please be vigilant and follow the warnings in these apps.
Stay safe!
Nina for iphone:
https://apps.apple.com/de/app/nina/id949360949
Other links on the official page:
https://www.bbk.bund.de/DE/Warnung-Vorsorge/Warn-App-NINA/NINA-Download/nina-download_node.html
by gotshroom