Shelf cloud on a severe thunderstorm captured on July 25th 2013 on the main Cookstown to Omagh road. This was a massive convergence line storm with very heavy precip and rich with lightning which crossed much of the country on this fantastic chase day, read the report for more information. * All images are available for sale in the form of photo prints, canvas or digital files for licensing, if you are interested in a purchase simply drop me an email.