The North Dakota Agricultural Weather Network, usually referred to as NDAWN is currently beta testing an inversion app. The app that will be available for both iPhones and Android devices will send you an alert when an Inversion is in place at selected NDAWN station. The app will also work for tablets as well. Besides the inversion alert capabilities, it will have current weather data available to all 98 weather stations currently within the mesonet. The release date is not known at this time but the hope is that this inversion alert app will be available before the end of the month, which means, with luck by the end of next week.