Distance and latitude/longitude coordinates are displayed when you mouse over the map. The origin for distance measuring is indicated by a red dot and defaults to either your location, if specified and in range, or the location of the radar/the centre of the map. The origin may be changed by clicking elsewhere on the map.
Lightning data supplied by GPATS
20:38 EDT Social media has lit up with striking images from a storm cell that has battered Brisbane and South East Queensland, smashing windows, bringing down trees and powerlines and cutting power to thousands of homes and businesses.