Garmin GXM 40 - Manual (Page 23)

GXM 40 Owner’s Manual 
XM WX Weather Features
Storm Cells
The Storm Cells feature displays storms and the projected path of storms in the immediate future.
Marine and automotive units also show the size of the storm cell. The direction in which the red cone is pointing (from
the narrow end to the wide end) indicates the projected path of the storm cell. The red bars that span the cone indicate the
projected area of the storm. Each bar represents 15 minutes.
Aviation units show the direction of the storm with an arrow. The tip of the arrow indicates the projected location of the
storm in 15 minutes. Select the storm cell with the map pointer to view critical information about the storm.
Aviation Automotive and Marine Aviation Automotive and Marine