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XM WX Satellite Weather and XM Satellite Radio

Storm Cell Information

Storm cell icons on the precipitation screen indicate both the present position of a storm and the

projected path of that storm in the immediate future.

Red cones appear with a storm cell icon, and the widest part of each cone points in the direction of

the projected path of the storm cell. The red bars in each cone indicate where the storm will most

likely be in the near future. Each bar represents 15 minutes.

NEXRAD

legend

NEXRAD

radar

Lightning Information

Lightning strikes are represented by lightning bolt icons. Lightning appears on the precipitation

screen if strikes were detected within the last seven minutes. The ground-based lightning detection

network detects cloud-to-ground lightning only.

Hurricane Information

The precipitation screen can show the present position of a hurricane, a tropical storm, or a tropical

depression. A red line stemming from a hurricane icon indicates the projected path of the hurricane.

Darkened dots on the red line indicate the projected locations through which the hurricane will

pass, as received from the National Hurricane Center. The center provides four forecasts at 12-hour

intervals (12 hours, 24 hours, 36 hours, and 48 hours), as well as the present conditions (Now).

Projected path

XM WX Satellite Weather

Lightning

Storm cells

Hurricane

and XM

Satellite Radio Supplement