Environment Canada issued a severe thunderstorm warning Sunday for areas near Saskatoon. The warning in the Martensville, Warman, Rosthern, Delisle and Wakaw corridor was issued just after 4 p.m. Sunday. The weather service reported it was tracking a system with the potential to cause heavy winds, rain and nickel-sized hail. Anyone encountering severe weather was urged to seek shelter or take cover. All weather warnings were lifted by around 6 p.m. Sunday.