These alerts can be a life saver when you're on-the-go and don't always have time to check the weather - our systems will proactively do the work for you and let you know in advance before the rain hits. Instead of having to check the app all the time, MyRadar will send you an alert up to an hour in advance as to when the rain will arrive at your current location, down to the minute, including details on intensity and duration. One of the most useful features in MyRadar is the ability to provide advanced rain alerts our patent-pending process for predicting hyper-local rainfall is the most accurate in the industry. Check your phone and get an instant assessment of the weather that will impact your day. This basic functionality provides the quickest way to get a snapshot of the weather on-the-go, and it's what has made MyRadar so successful over the years. Just start the app your location pops up with animated live radar, with radar loop lengths of up to two hours. MyRadar is a fast, powerful, easy-to-use weather app that displays animated weather radar around your current location and to quickly show what weather is coming your way. Since hail can cause the rainfall estimates to be higher than what is actually occurring, steps are taken to prevent these high dBZ values from being converted to rainfall.Thanks to everyone for making MyRadar so successful, with over 50 million downloads! Hail is a good reflector of energy and will return very high dBZ values. These values are estimates of the rainfall per hour, updated each volume scan, with rainfall accumulated over time. Depending on the type of weather occurring and the area of the U.S., forecasters use a set of rainrates which are associated to the dBZ values. The higher the dBZ, the stronger the rainrate. Typically, light rain is occurring when the dBZ value reaches 20. The scale of dBZ values is also related to the intensity of rainfall. The value of the dBZ depends upon the mode the radar is in at the time the image was created. Notice the color on each scale remains the same in both operational modes, only the values change. The other scale (near left) represents dBZ values when the radar is in precipitation mode (dBZ values from 5 to 75). One scale (far left) represents dBZ values when the radar is in clear air mode (dBZ values from -28 to +28). Each reflectivity image you see includes one of two color scales. The dBZ values increase as the strength of the signal returned to the radar increases. So, a more convenient number for calculations and comparison, a decibel (or logarithmic) scale (dBZ), is used. Reflectivity (designated by the letter Z) covers a wide range of signals (from very weak to very strong). "Reflectivity" is the amount of transmitted power returned to the radar receiver. The colors are the different echo intensities (reflectivity) measured in dBZ (decibels of Z) during each elevation scan.
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