Garmin GTN 650 Pilot's Guide - Page 206

11.1.5 NEXRAD Foreword WSR-88D, or NEXRAD (NEXt-generation RADar), is a network of 158 high- Getting Started resolution Doppler radar systems that are operated by the National Weather Service (NWS). NEXRAD data provides centralized meteorological information Xpdr Ctrl for the continental United States and selected overseas locations. The maximum range of a single NEXRAD radar site is 250 NM. The NEXRAD network provides Com/Nav important information about severe weather for air traffic safety. FPL NEXRAD data is not real-time. The lapsed time between collection, processing, and dissemination of NEXRAD images can be significant and may not reflect Direct-To the current radar synopsis. Due to the inherent delays and the relative age of the data, it should be used for long-range planning purposes only. Never use Proc NEXRAD data or any radar data to penetrate hazardous weather. Instead, use it in an early-warning capacity of pre-departure and en route evaluation. Wpt Info Composite data from all the NEXRAD radar sites in the United States is shown. Map Canadian radar data provided by Environment Canada. This data is composed of the maximum reflectivity from the individual radar sweeps. The display of the Traffic information is color-coded to indicate the weather severity level. Terrain NOTE: Due to similarities in color schemes, the display of Echo Tops cannot be shown with Cloud Tops and NEXRAD. Weather 1. While viewing the Datalink Weather menu, touch the NEXRAD key to step through the NEXRAD selections. Nearest Music Utilities System Messages Symbols NEXRAD Weather Age Of Selected Weather Products City Forecast Touch To Select Time Figure 11-7 NEXRAD Weather 2. Repeated touches to the NEXRAD key will toggle between the Off, US, and Canada selections. Appendix Index 11-8 Garmin GTN 625/635/650 Pilot's Guide 190-01004-03 Rev. B