Boltek Lightning/2000 - Manual (Page 87)

R E A L - T I M E L I G H T N I N G D E T E C T I O N
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CID strokes are only detected from relatively nearby
storms, those within 150 miles or 250 km. It is rare to
see more than a single CID stroke in a minute from a
storm that is more than 100 miles or 150 km away. A
CID stroke rate of 5 or more is a very good sign that a
storm is relatively nearby. On rare occasions, it is
possible to see CID strokes from more distant storms.
A new record value is denoted by swapping the colors
of the counter and the background.
Since CID strokes are strokes and not flashes (they
are components of flashes), the will not be displayed if
you are viewing flashes in the Real-time Lightning
window or Raw Lightning Data window.
You may view strokes in the Raw Lightning Data
window. Right-click in the window and choose
"Settings..." from the popup menu to select the "View |
Strokes" option.
This counter is not used with the LD-250.
The Percent Counters
Since these counters’ alarms are not based on stroke rates, but
on percentages, it is possible to see yellow and even red alerts
triggered for these counters even with no lightning activity
within several hundred miles. For example, a distant severe
storm is likely to have an abundance of positive CG strokes
over negative CG strokes – a condition that would trigger an
alert on the “+CG%” counter.
When in flash mode (rather than stroke mode), the percent
counters indicate the percentage of flashes rather than
strokes.