Strong storms delivered a direct hit to Edmonton late Saturday, pushing very large hail near the city limits. A tornado warning was issued for Stony Plain, west of Edmonton, as rotating clouds moved across the region. A second warning blanketed Yellowhead County as the cell held together. Heavy rain sparked flash flooding across low-lying areas of the metro. Whitemud Drive in west Edmonton was left closed under standing water. Busy stretches of road shut down as crews responded to blocked intersections. Travel plans fell apart across the city, with drivers trapped by the sudden downpour.