![]() 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. 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). Wundermap Current Radar (Intellicast) Region: Play Animation Learn About Current Radar (Intellicast) The Current Radar map shows areas of current precipitation. "Reflectivity" is the amount of transmitted power returned to the radar receiver. and Topeka, Ks.The colors are the different echo intensities (reflectivity) measured in dBZ (decibels of Z) during each elevation scan. Provide: Live Midwest Doppler Radar and Weather Forecasts for Major Cities within the Midwestern US.įargo, Nd., Bismarck, Nd., Grand Forks, Nd., Sioux Falls, Sd., Rapid City, Sd., Pierre, Sd., Minneapolis, Mn., Duluth, Mn., Saint Paul, Mn., Milwaukee, Wi., Madison, Wi., Green Bay, Wi., Kenosha, Wi., Racine, Wi., Detroit, Mi., Grand Rapids, Mi., Warren, Mi., Flint, Mi., Sterling Heights, Mi., Lansing, Mi., Ann Arbor, Mi., Livonia, Mi., Dearborn, Mi., Columbus, Oh., Cleveland, Oh., Cincinnati, Oh., Akron, Oh., Dayton, Oh., Indianapolis, In., Fort Wayne, In., Evansville, In., South Bend, In., Gary, In., Chicago, Il., Rockford, Il., Aurora, Il., Naperville, Il., Peoria, Il., Springfield, Il., Des Moines, Ia., Cedar Rapids, Ia., Davenport, Ia., Kansas City, Mo., Saint Louis, Mo., Jefferson City, Mo., Independence, Mo., Omaha, Ne., Lincoln, Ne., Wichita, Ks. ![]() For additional information please contact: Forecast Ticker can be licensed for use on other websites or blogs, the ticker size and or colors can be modified to fit any theme. The Interactive Midwest Forecast ticker is updated hourly by the Weather Information Network and provides a scrolling snapshot of weather conditions for Major Cities within the Midwestern U.S. Chicago, Illinois Current Weather Forecasts, Live Radar Maps & News WeatherBug Today's Weather - Chicago, IL 1:36 PM Whitney Young HS - Feels like - Hi - Lo - Live Radar Weather Radar Map WEATHER DETAILS Chicago, IL Windchill - Daily Rain - Dew Point - Monthly Rain - Humidity - Avg. ![]() If you have javascript enabled and the controls fail to work, then update your web brower to the latest version. To use the "SpeedUp" & "SlowDown" controls, your web browser must support javascript.
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