Owner's manual

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+CG strokes are positive cloud-to-ground strokes.
The majority of CG strokes in a typical thunderstorm
are -CG strokes. A significant +CG stroke rate is one
possible indication of a storm's severity.
Counters | Stroke rates | IC strokes
Toggle the display of the IC stroke rate counter.
IC strokes are intercloud or intracloud strokes. A high
IC stroke rate is indicative of a nearby storm.
Counters | Stroke rates | -IC strokes
Toggle the display of the -IC stroke rate counter.
-IC strokes are negative intercloud or intracloud
strokes. The majority of IC strokes registered by
Lightning/2000 will normally be +IC strokes.
A high -IC stroke rate versus the +IC stroke rate is an
indication that a storm is severe and nearby.
Counters | Stroke rates | +IC strokes
Toggle the display of the +IC stroke rate counter.
+IC strokes are positive intercloud or intracloud
strokes. The majority of IC strokes in the average
thunderstorm are +IC strokes.
A significant number of IC strokes is an indication that
a storm is relatively nearby.
Counters | Flash rates | Total flashes
Toggle the display of the total flash rate counter. The
total flash rate includes the rate of CG, IC, and CID
flashes.