This warning app is almost as important today as Covpass

A storm with wind speeds over 120 km / h attracts across Germany. This can be dangerous in many places. Especially in such situations weather warnapps like Nina, Katwarn and Warning weather are now required. They help you by notifying them as soon as an official warning is present at their whereabouts.

Nationwide is warned against hazardous plates such as thunderstorms, floods or large fires in the area. In addition, you get tips for emergencies. This allows them to react in good time in many cases and prepare themselves.


The warning app Nina was developed by the BBK. The name stands for “emergency information and news app”. The app is a dispensing channel of the satellite-based modular warning system, which, for example, also receive radio broadcasters official alerts, explains Michael Judex. The Covenant warns only for major national hazardous poses has provided the system to countries for their warning tasks.

For dangers from the area of ​​civil protection, for example storm or flood, the federal states are responsible and can independently issue warnings about Nina. The weather warnings gets Nina from the German Weather Service. In many federal states, Nina warns less large-scale dangers. For example, before defusing World War Bombs. Here are the responsibilities differently depending on the state. A map with the counties and cities that warn about their own control centers or the respective Ministry of the Interior in front of local dangers is available on the website of the BBK.

The category “Emergency Tips” users can also inform themselves about the correct behavior in an emergency in the app regardless of an acute risk.

  • Nina app: information and download the Android app at chip
  • Nina app: information and download the iPhone app at chip


The App Katwarn was developed by the Fraunhofer Institute Nina app on behalf of public insurer. Like Nina, she has regionally different functions. Like Nina, Katwarn issues warnings of the German Weather Service nationwide. At nationwide dangers, users of Katwarn will receive in Hamburg, Berlin, Rhineland-Palatinate and the Saarland. There are regional news for some counties and county-free cities. You are viewed on the Katwarn website.

One disadvantage is that users can specify next to their own location at most seven postal codes for which they want to be warned. That restricts the range strongly in large cities with many postcodes. In cooperation with the respective organizers, Katwarn offers topics subscriptions: For example, visitors to festivals or fairs are up-to-date with the event.

  • Katwarn app: Information and download the Android app at chip
  • Katwarn app: information and download the iPhone app at chip

Die CovPass App des Robert Koch-Institut installieren und das Impfzertifikat einscannen.


Biwapp stands for “citizen-info and warning app”. Here is not only warned against major catastrophes, but also before school failures, in searches or traffic accidents. However, this only if the competent schools, offices or police authorities feed the app with the necessary information. Practical: The individual categories can be switched on and off. If you have no children, it is probably no matter if the school fails. In addition, users can discontinue an emergency call to police and fire department via the app. The app displays the current address and position.

  • Biwapp: Information and download the Android app at chip
  • BIWAPP: Information and download the iPhone app at chip

DWD Warning weather

Who only wants to be informed about the weather, meets with warning weather, the app of the German Weather Service, the right choice. This app warns, for example, with black ice or storm and informs detailed about the current weather in Germany.

All four apps are available for free for Android and iOS. But users should not make a mistake: leave alone on the app. “Generally, messages via app are just a puzzle piece with warnings,” says Silvia Darmstädter from the German Fire Brigade Association. They are never the sole warning agent, but only a meaningful addition to sirens, television and radio.

  • Warning weather: information and download the Android app at chip
  • Warning weather: information and download the iPhone app at chip

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