Live updates are down because our machine that runs it is broken. Hope to get it back online soon.


This lightning detector monitors for the radio interference created by lightning using a very sensitive receiver. Itís capable of detecting lighting up to about 80km away. With this sensitivity also comes the problem of false positives which are detections when there is no actual lightning. So it requires a level of human interpretation. To help, here are a couple of graphs, the first showing what it looks like when there is no lightning around. The second shows a lightning storm in the area.

Experience over the last month shows readings of less than 5 in 5 mins would be regarded as nothing there, just interference from other sources like fluorescent lights turning on, air conditioners starting etc. Over 5 in 5 mins suggests lighting in the area.