8. Advanced Lightning Detection Networks
The evolution of advanced lightning detection systems has given meteorologists a valuable new instrument for spotting possible tornado-generating storms. With before unheard-of accuracy and reach, these networks can identify intra-cloud as well as cloud-to- earth lightning. Studies have indicated that variations in lightning patterns, especially a rise in the number of lightning strikes, can be suggestive of developing updrafts inside a storm – a fundamental antecedent to tornado development.
Combining ground-based sensors with satellite data, modern lightning detection systems produce a complete picture of lightning activity. These devices can track changes in lightning frequency on timescales of seconds and accurately identify the site of lightning strikes down to a few hundred meters. With this great temporal and spatial resolution, meteorologists can spot fast strengthening of thunderstorms that might cause tornado development. Particularly fascinating is the identification of “lightning jumps,” rapid rises in lightning frequency sometimes before major storms including tornadoes. Some sophisticated systems may even distinguish between several kinds of lightning discharges, therefore offering information on storm electrical structure. Understanding the dynamics of tornadic storms and enhancing short-term forecasts depend on this knowledge, so it is essential. More complex algorithms for spotting possibly tornadic storms have emerged from the merging of lightning data with radar and satellite observations, therefore lowering false alarms and raising lead periods for warnings. Moreover, the worldwide coverage of these lightning detection systems has enhanced tornado prediction capacity in areas with little radar coverage, therefore improving public safety everywhere.