Are you tired of getting caught in the rain without an umbrella? The 雨雲レーダーHD - High-Resolution Rain Naust Cast Alarm app by Digital Equality is here to help. This app displays the rain cloud radar of the latest weather prediction system, the "High-Resolution Precipitation Nowcast," by the Japan Meteorological Agency. It provides highly accurate precipitation predictions by calculating the distribution of the precipitation area with a high resolution of 250m.

Not only can you view the radar, but you can also set notifications to alert you when rain is expected in your area. You can pinpoint any location on the map and register multiple locations such as your home or office. Additionally, you can set up notifications to receive alerts at your convenience. Please note that this app is only available in Japan.

The installation of this app requires certain permissions such as access to your ID, location information, and images/media/files. However, the app does not use your personal information. This app is free to use and is a useful tool for those who want to stay dry during unexpected rain showers.