KEMX NEXRAD Weather Radar near Tucson, Arizona — operated by NWS Tucson. Live local radar coverage for Tucson, Sierra Vista, Nogales, Green Valley, Oro Valley, Marana, Sahuarita, Douglas, Benson, Willcox. Counties served: Pima, Cochise, Santa Cruz, Graham, Greenlee, Pinal. View real-time reflectivity, base velocity, storm-relative velocity (SRV), spectrum width, correlation coefficient (CC), differential reflectivity (ZDR), differential phase (KDP), VIL, echo tops, and composite reflectivity. Track severe thunderstorms, tornadoes, hail, and winter weather with weather alerts from the National Weather Service. Features include dual-pane NEXRAD radar comparison, radar animation playback, live streaming radar updates, and ProbSevere storm cell tracking. Tucson Arizona weather radar, Tucson local radar, Arizona storm tracking, Arizona weather alerts. VectorWX provides high-fidelity Level 2 NEXRAD radar data for Arizona and surrounding areas.