雷アラートPRO - お天気ナビゲータ is a weather application developed by 日本気象株式会社. It is available for Android devices and falls under the Lifestyle category. The app requires registration for the "PRO Course" or the "雷アラートPRO Course" on the "お天気ナビゲータ" website to use. The app provides notifications and pop-ups when thunderclouds approach or move away from the user's specified location. With the PRO version, users can access the location feature and convenient widget functionality. The app also offers a "雷予測マップ" that provides a visual representation of thundercloud movement up to one hour in advance. Users can easily check where thunder is currently observed and where it is expected to occur. The app categorizes thundercloud proximity into four levels and thunder intensity into four levels as well. It also offers a widget that displays the real-time thundercloud map with background color changing based on the proximity level. Users can customize the app settings, including region selection, automatic updates, notification intervals, notification time, and notification methods. The app allows manual data updates by pulling down the screen.

Please note that the "雷報告マップ" feature has been discontinued as of June 13, 2022. To use this app, a subscription to the "PRO Course" or the "雷アラートPRO Course" is required, with a one-week free trial available. However, payments through d払い, Amazon Pay, or corporate contract services (invoice payment) are not supported.