DWD Weather warnings

The dwd_weather_warnings sensor platform uses the Deutsche Wetter Dienst (DWD) as a source for current and advance warnings.

• A name is optional but if multiple regions are used a name will be required.
• The sensor checks for new data every 15 minutes.

To add the DWD WarnApp sensor to your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
sensor:
  - platform: dwd_weather_warnings
    region_name: Hansestadt Hamburg

To get the region name:

• Find your region here: https://www.dwd.de/DE/wetter/warnungen_landkreise/warnWetter_node.html?ort=Hamburg
• Verify if you find any warning for your region here: https://www.dwd.de/DWD/warnungen/warnapp_landkreise/json/warnings.json?jsonp=loadWarnings

The warning level is between 0 (no danger) and 4 (extreme weather conditions):

• Warnungen vor extremem Unwetter (Stufe 4)
• Unwetterwarnungen (Stufe 3)
• Warnungen vor markantem Wetter (Stufe 2)
• Wetterwarnungen (Stufe 1)

Configuration variables:

• region_name (Optional): The region name string as identified from the DWD website. If not given, defaults to Hansestadt Hamburg.
• name (Optional): The name you would like to give to the warnapp sensor.