雷アラート is a weather application developed by 日本気象株式会社. It is available on the Android platform and falls under the Lifestyle category, specifically the Weather subcategory. This free app aims to notify users about the approaching thunderclouds, helping them avoid the risk of lightning strikes.

With 雷アラート, users can set their desired city or town and choose the notification time. When thunderclouds are expected to approach the selected area, the app sends notifications through pop-ups or the notification bar.

The app provides a simple and user-friendly interface, making it easy for users to set their preferences and stay informed about potential lightning risks. Additionally, the app offers detailed information about the level of thundercloud proximity and the intensity of the lightning. Users can also access the latest "雷レーダー" (lightning radar) and check the "お天気ナビゲータ" (weather navigator) for comprehensive weather forecasts and pinpoint weather information.

Please note that as of November 2020, the app's support has ended, and it will no longer receive updates or bug fixes. However, users can continue to use the app without any issues, but compatibility with new operating systems is not guaranteed.

Overall, 雷アラート provides a convenient way for users to stay aware of thunderclouds' proximity and potential lightning risks, helping them take necessary precautions to ensure their safety.