New dual-polarization radar that the National Weather Service has been using since 2012 detected the April 27 EF-2 tornado when it struck Quapaw, Oklahoma. Debris from Quapaw was detected in the air northeast of the town by the National Weather Service forecast office at Tulsa, Oklahoma, but not soon enough for a warning to be issued. But debris from the same tornado in Baxter Springs, Kansas, was not detected on radar by the  station at Springfield, which uses the same new technology.