Strong storms swept through 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 ramped up. Heavy rain caused flash flooding across low-lying areas of the metro. Whitemud Drive in west Edmonton was left closed under standing water. Key routes shut down as crews responded to blocked intersections. Travel plans collapsed across the city, with drivers slogging through the sudden downpour.