Initial Supercell development across Northwest Oklahoma has begun which will bring large to very large hail. Two funnel clouds have just been reported Southeast of Leedey. The tornado threat will increase rapidly as we move toward the 6:00PM hour. This is a watch known as a particularly dangerous situation, meaning that strong tornadoes are expected in the coming hours and  will last at least until 11:00PM CST. We have several Titans across the region and we will keep you updated as the evening progresses.