Radar Can Be Deceiving

 

Below is an example of a typical radar image that you will see on your computer, tablet or smart phone.  You can see the characteristic light to dark green values indicating the radar is detecting precipitation, or is it?

 

Kansas City Base Reflectivity

Kansas City Base Reflectivity

 

With dual-pol radar products, meteorologists have additional data to differentiate radar echoes that are caused by precipitation versus echoes that can be caused by insects, birds, smoke, etc.

 

Kansas City Dual-Pol Radar - Correlation Coefficient

Kansas City Dual-Pol Radar – Correlation Coefficient

 

We’ve highlighted the area of interest below which shows light and dark greens that appear to be precipitation at first, however they are actually non-meteorological, meaning it isn’t actually rain!

 

Kansas City Base Reflectivity - Highlighted

Reflectivity – Highlighted

Kansas City Dual-Pol - Highlighted

Correlation Coefficient – Highlighted

 

Just another reason why you can’t always trust what the radar is telling you!

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