This Python scripts return the latest weather and earthquake info. from JMA (気象庁).

jma-earthquake.py

I wrote this to let my Home Assistant speak an earthquake info.

Assuming this script is saved as www/shell_command/jma-earthquake.py, put the following YAML code in your configuration.yaml file

command_line:
  - sensor:
      name: Latest Earthquake
      command: "python3 www/shell_command/jma-earthquake.py"
      scan_interval: 300

In this case, the earthquake info is obtained every 5 minutes. Do not forget chmod +x jma-earthquake.py.

JMA limits the total size of downloading data up to 10GB per day. Roughly, 100KB of data is downloaded once this script is called.

The MAGNITUDE_THRESHOLD value determins if the latest earthquake is big enough to report or not. You may change its value according to your needs.

JMA-Weather-Chart.py

This script is to obtain the latest weather chart (天気図) from JMA (気象庁). This script is designed to reduce the traffic to JMA as much as possible. Note that the weather data are collected every 3 hours (0, 3, 6, 9, 12, 15, 18, 21), and it takes 2:10 to produce a weather chart (reference).

Here is my configuration, assuming this script is copied as www/shell_command/JMA-Weather-Chart.py in your Home Assistant environment. This script takes an argument specifying the directory to store the chart.

command_line:
  - sensor:
      name: Latest Weather Chart
      command: "python3 www/shell_command/JMA-Weather-Chart.py www/shell_command"
      scan_interval: 1800

To display this chart, I use Refreshable Picture Card.