Dual-polarized weather radar can estimate the number of bats in a swarm similar to the way it can estimate the number of raindrops in a cloud.
Recent analysis of data from NOAA NSSL’s prototype dual-polarization radar during a significant tornado outbreak in central Oklahoma this past spring showed debris from a damaging tornado. This critical information can help a forecaster confirm the presence of a rain-wrapped tornado, or a tornado at night causing damage on the ground. Current NOAA National Weather
Environment Canada scientists visited NSSL on June 7 and 8 to learn more about dual-polarization research in preparation for the dual-polarimetric upgrade to their weather radar network.