![]() ![]() I use this source daily! The plans for making the devices are free, but to get a sensor, currently you must build it yourself from sratch. It now has lightning data for the US, and the data is accurate and up-to-date. It's the lightning equivalent of amateur weather stations providing data to sites like Weather Underground. Blitzortung: This is an open-source network consisting of home-built sensors that originally started overseas.Ground strike points on the maps are marked with dots, plus signs (for positive-flash strikes), or minus signs (for negative-flash strikes).Īlthough comprehensive access to lightning data is generally fee-based, there are many free lightning data sources on the internet, many of them real-time (or slightly delayed). This data is used to create detailed maps of lightning strikes on a real-time basis. The data collected by multiple sensors allows the location of strikes to be calculated via triangulation. These radio waves are used to calculate how far away a strike is in relation to the sensor. Today, private companies and open-source groups operate networks of special sensors that can detect radio waves produced by lightning. Lightning strike maps are images that display the locations where cloud-to-ground lightning strikes have occured. ![]()
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