The Weather Channel 2014. Aside from location-based weather forecast information, the apps provided radar maps, and tropical and seasonal updates, as well as social media related functions that track weather-related Twitter messages and allow users to send Facebook friends severe weather alerts. The channel also disseminated severe weather information, and photos and videos submitted by meteorologists and viewers, on its Twitter feed (@TWCBreaking, which also served as a hashtag usable for posts). In July 2012, The Weather Company (former owner of The Weather Channel) purchased competing weather website Weather Underground. While The Weather Channel already had success with its own mobile apps, it
Weather radar filter them, but scientists began to study the phenomenon. Soon after the war, surplus radars were used to detect precipitation. Since then, weather radar has evolved on its own and is now used by national weather services, research departments in universities, and in television stations' weather departments. Raw images are routinely used and specialized software can take radar data to make short term forecasts of future positions and intensities of rain, snow, hail, and other weather phenomena. Radar output is even incorporated into numerical weather prediction models to improve analyses and forecasts. During World War II, military radar operators noticed