noun
weather radar; rain radar
Refers specifically to radar that displays the location and movement of rain or snow clouds, commonly used in weather forecasts and apps.
雨雲レーダーを見ると、もうすぐ雨が降りそうだ。
Looking at the rain radar, it looks like it's going to rain soon.
このアプリの雨雲レーダーはとても正確だ
The rain radar on this app is very accurate.