Since SkyScan allows you to know the level of activity of the storm, it determines if it is moving towards, away or parallel to your position. Each time SkyScan detects a lightning stroke, it emits an audible warning tone (if this feature has been turned on by the user) and lights the Range Indicator column. The full column stays lit for approximately 3 seconds. This feature allows you to see the distance to the last, closest detected stroke without waiting for SkyScan to detect a new stroke.

Your SkyScan may also identify certain types of especially strong storms. These storms can produce dangerous winds, heavy rains or tornadoes. When SkyScan detects lightning patterns indicating the presence of these storms, it activates the Severe Thunderstorm Alarm and emits a distinctive 15 second continuous audible tone different from the detection of normal lightning activity. Once activated, the severe thunderstorm alarm remains on for approximately 15 minutes. At the end of this period, the SkyScan checks again for indications of severe storm activity. If none is detected, the Severe Thunderstorm Alarm is turned off. If severe thunderstorm conditions are still detected, the indicator remains on for another 15 minutes, accompanied by another 15 second warning tone.

SkyScan