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20 GXM 40 Owner’s Manual
XM WX Weather Features
Lightning
Lightning bolt icons represent lightning strikes, as shown
in the image below. Lightning strikes appear on the map if
strikes have been 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.
Lightning bolts indicate a
cloud-to-ground lightning
strike.
Lightning Strikes