Two weeks ago, I talked about an introduction to radar and how it works on a basic level. This time, we are looking into radar reflectivity specifically, the most popular product of weather radar.

Color on the reflectivity radar image represents the strength of the energy returned, measured in decibels (dBZ). As the dBZ increases, so does the rainfall rate. The National Weather service uses a ...

This study represents a collaborative effort between Michigan Tech Research Institute (MTRI), the University of Michigan's Transportation Research Institute (UMTRI) and Toyota's Collaborative Safety ...

DOTHAN, Ala. (WTVY) - We are no stranger to severe weather across the Wiregrass, particularly this week with severe weather events on Tuesday and coming up on Friday. The 4Warn Weather Team uses radar ...

ABSTRACT The authors use variograms of radar reflectivity as a summary statistic to describe the spatial continuity of Alpine precipitation on mesogamma scales. First, how to obtain such variograms is ...

HUNTSVILLE, AL (WAFF) - UAH confirmed chaff was the cause of high radar reflectivity, or the "blob" over West Huntsville Tuesday. They released a photo of what they said is fiberglass chaff found on ...

The horrible winter of 2026 is behind us in New England; now we’ve moved on to the season where there’s a threat of rain basically every day. Given that, the updated Storm Radar app from The Weather ...

Outside every National Weather Service (NWS) office around the U.S. stands what looks like an enormous white soccer ball, perched atop metal scaffolding several stories high. These somewhat plain ...

See a mistake? Contact us. Question: On some NEXRAD images, I sometimes see a negative value for dBZ (decibel related to Z) for the reflectivity. How can these values be negative? Answer: Of all of ...