4-30 Garmin G600 Pilot’s Guide 190-00601-02 Rev. BForewordSec 1SystemSec 2PFDSec 3MFDSec 4HazardAvoidanceSec 5AdditionalFeaturesSec 6Annun.& AlertsSec 7SymbolsSec 8GlossaryAppendix AAppendix BIndex2) A full page legend can be selected by selecting the Weather Legend option inthe XM Weather Map Menu or pressing the LEGEND soft key on the WeatherMap Page. The legend displayed will match the selected weather products. Turnthe large or small MFD knobs to scroll through the legend, if necessary.4.4.5 NEXRADWSR-88D, or NEXRAD (NEXt-generation RADar), is a network of 158 high-resolution Doppler radar systems that are operated by the National WeatherService (NWS). NEXRAD data provides centralized meteorological informationfor the continental United States and selected overseas locations. The maximumrange of a single NEXRAD radar site is 250 NM. The NEXRAD network providesimportant information about severe weather for air traffic safety.NEXRAD data is not real-time. The lapsed time between collection, processing,and dissemination of NEXRAD images can be significant and may not reflectthe current radar synopsis. Due to the inherent delays and the relative age ofthe data, it should be used for long-range planning purposes only. Never useNEXRAD data or any radar data to penetrate hazardous weather. Instead, use itin an early-warning capacity of pre-departure and en route evaluation.Figure 4-15 XM Weather - NEXRADComposite data from all the NEXRAD radar sites in the United States is shown.This data is composed of the maximum reflectivity from the individual radarsweeps. The display of the information is color-coded to indicate the weather
