A major spring blizzard “poised to wallop” southern Manitoba for three days this week could be the worst in decades, Environment Canada says.

In an updated storm watch notice on Monday, the weather agency said widespread snowfall of 30-50 centimetres is expected, along with north winds gusting from 70-90 km/h, giving zero visibility at times.

Do not plan to travel and stock up on needed supplies and medications now, the weather alert from Environment Canada says.

“This storm has the potential to be the worst blizzard in decades.”

CBC Manitoba meteorologist John Sauder says Winnipeg might get lucky and see slightly lesser amounts, around 24-45 cm. 

To