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During severe weather situations, reflectivity signatures can provide valuable clues as to what threats to expect from a particular cell.Bright reflectivity returns that are stationary and appear during both calm and inclement weather are usually land-based obstructions such as mountains, trees, or especially wind farms (nothing gets electromagnetic signals confused like spinning metal blades!).This is helpful for picking out snow/mix/rain transition zones In all snow situations, dBZ values of 40 indicate 3-4”/hr snowfall rates and whiteout conditions. Anything larger than this is usually due to “bright banding” where the radar is seeing the part of the atmosphere where snowflakes are clumping together and melting into raindrops.
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Because of this phenomenon, the radar beam will only see precipitation falling through the mid levels of the atmosphere. To see this in action, imagine a circle (earth) with a straight line emanating from some point on the circle if you continue this line out into space, it will gradually get farther and farther from the circle. Weather forecasts and LIVE satellite images of the United States of America. View rain radar and maps of forecast precipitation, wind speed, temperature and more. Because the earth is round and the radar beam is flat, the farther away from the radar tower the beam (energy) travels, the farther removed from the ground becomes. Weather forecasts and LIVE satellite images of the United States of America. There is a notable constraint to radar data though. This is the highest resolution radar data available which enables you to see features such as sea breeze or outflow boundaries that standard resolution radar entirely misses. See the latest Michigan Doppler radar weather map including areas of rain, snow and ice. This data is gathered from over a hundred radar towers located across the US. Lake Murray, Ardmore OK (WeatherOK, USA).Lightning CG worldwide (since 2004) Plus.Base reflectivity (with archive since 1991).Radar & Lightning Radar & Lightning Radar.Forecast Ensemble Heatmaps (Up to 7 models, multiple runs, graph up to 46 days) Plus.Forecast Ensemble (Up to 7 models, multiple runs, graph up to 46 days).Forecast XL (Graph and table up to 10 days - choose your model).14 day forecast (ECMWF-IFS/EPS, graphs with ranges).Meteograms (Graph 3-5 days - choose your model).Weather overview (Next hours and days, 14 day forecast).Central Europe Super HD (MOS) (3 days) new.Tropical cyclone tracks (ECMWF/Ensemble).