RainViewer started as a small project and grow out into a service that provides a single map with over 1000 weather radars. All the data coming from the radars, RainViewer displays on the map: rain and snow animation, precipitation intensity, storm path. This makes it super convenient to observe and monitor doppler radar animations over the world. RainViewer map has the biggest radar coverage in the market, which means that you won’t find a map with over 1000 rain radars in open access.
Radar sometimes detects things that aren’t rain. Bats, birds, and bugs sometimes fly in such numbers that modern radar systems detect the reflections from these creatures. Non-biological things, such as wind turbines in wind farms, also sometimes cause radar to register returned signals.
Big storms start small. Tropical cyclone Idai in the Indian Ocean, typhoon Hagibis in the Pacific Ocean, and hurricane Dorian in the Atlantic Ocean all gained energy and organization over time. And while the words vary (e.g., typhoon, hurricane), the term tropical cyclones refers generally to these powerful systems that form over warm ocean water.
When hurricanes and other dangerous weather events happen, weather forecasters warn people of the potential danger. Fortunately, we also have access to many of the images and data that meteorologists, public officials, and emergency managers rely on to make decisions.