XM Satellite Radio GXM30 Lightning

XM WEATHER FEATURES > LIGHTNING

Lightning

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

Lightning bolts indicate a cloud-to-ground lightning strike.

GXM 30 XM Radio Smart Antenna Owner’s Manual

Contents

Page Page Warning Caution INTRODUCTION Preface Terminology used throughout this manual Product Registration XM WX Weather and XM Radio ID Getting Started XM WX Weather Features Appendix Unit Overview GETTING STARTED Connecting the GXM 30 to a Garmin Unit Subscribing to XM WX Weather and Radio Service Level XM WX WEATHER FEATURES Displaying Weather Information MENU Show Weather ENTER NEXRAD Radar Satellite Mosaic Lightning Storm Cells Hurricanes Surface Winds Winds Aloft Surface Pressure Fronts Visibility County Warnings Water Temperature Wave Period Wave Direction Wave Height Marine Warnings Buoy Reports METAR AIRMET SIGMET TFR Echo Tops Freezing Level Forecast TAF XM Audio APPENDIX Speciﬁcations Physical Speciﬁcations Power Performance Feature Data Broadcast Frequency NEXRAD Overview NEXRAD Description NEXRAD Abnormalities NEXRAD Limitations NEXRAD Intensity FCC Compliance Limited Warranty Online Auction Purchases: International Purchases: Software License Agreement XM Satellite Radio Service Agreement Weather Data Warranty TFR Data INDEX Page Page Garmin products, visit the Garmin Web site at www.garmin.com