Garmin GXM 40 - Manual (Page 27)

GXM 40 Owner’s Manual 
XM WX Weather Features
County Warnings
When the National Weather Service issues a weather warning for a county, the county is highlighted with the color
corresponding to the warning. To view information about the warning, select the county with the map pointer.
Severe Thunderstorm Warning
Tornado warning
Severe thunderstorm warning
Flood warning
Flash flood warning
Severe Thunderstorm Warning
Tornado warning
Severe thunderstorm warning
Flood warning
Flash flood warning