UPDATE: On July 14, 2020, Environment Canada said further investigation of the damage caused by the tornado had prompted the weather agency to upgrade it to an EF-1 tornado with wind speeds that reached 150 kilometres per hour.
Officials with Environment Canada have confirmed reports of a tornado near Nanton, Alta., on Sunday.
The national weather agency issued a tornado warning for parts of southern and central Alberta shortly after 1 p.m.
According to a weather summary on Environment Canada’s website, the tornado was spotted near Nanton, which is located about 65 kilometres south of Calgary, from approximately 1:10 p.m. to 1:20 p.m.
The tornado warning was then lifted at 1:25 p.m.
The national weather agency said it was sent multiple photos of the tornado.
“A dust cloud was seen at the base of the funnel, however, there were no reports of damage,” Environment Canada said. “Therefore, this tornado has been given a preliminary rating of EF0.”
“This was considered a landspout tornado that was generated by weak rotation under rapidly growing clouds or weak thunderstorms,” Environment Canada stated. “Landspout tornadoes do not usually cause significant damage but can still be dangerous as they can topple trees, damage roofs, or toss debris a short distance.”
Several other small funnel clouds were reported around south-central Alberta, the weather agency said.
Meteorologists with Environment Canada are asking anyone who may have pictures of the tornado or damaged it may have caused to report it by calling 1-800-239-0484, emailing firstname.lastname@example.org or tweeting with #ABStorm.