Garmin GDL30A Lightning

XM WX Weather Features

Lightning

Lightning strikes are represented by lightning-bolt icons, as shown in the images below. Lightning strikes appear on the map if they have been detected within the last seven minutes. The ground-based detection network only detects cloud-to-ground lightning.

Cloud Tops with NEXRAD

Cloud Tops

10	GDL 30A Owner’s Manual

Contents

Page Page Introduction Product Registration Contact Garmin Contact XM Important Numbers Page Unit Overview Packing List and Accessories Installing and Activating the GDL 30A Step 1: Install the unit Step 2: Set up the XM account Subscription) XM Radio: Using XM WX Weather Preset Weather Displays Customizing the Preset Weather Displays XM WX Weather Features Precipitation NEXRAD Cloud Tops Storm Cells Lightning Hurricanes Atmosphere Wind Pressure Visibility Fronts City Conditions Sea Surface Temperature Wave Height Wave Period Wave Direction Main Menu Weather Tab Current (Weather) Forecast Sea Surface Forecast Map Setup XM Tab Audio Information Appendix Blink Codes Weather-RelatedBroadcast Rates GDL 30A Specifications GA 32 Antenna Specifications Weather and Sea Surface Information XM Satellite Radio Service Agreement XM Satellite Radio Inc Weather Data Warranty USER SAFETY LIMITS ON OUR RESPONSIBILITY Software License Agreement Index Garmin products, visit the Garmin Web site at www.garmin.com