National Transportation Safety Board Press Release The NTSB warns pilots using in-cockpit weather display systems that the NEXRAD "age indicator" can be misleading. The weather data could potentially be as much as 20 minutes older than the age indication in the cockpit.
Stormscope, by detecting the electrical activity already present as the storm builds, provides an accurate view of areas that should be avoided. Stormscope processes both azimuth and range to determine the location and intensity of dangerous thunderstorm cells – then presents the findings in real time.