What is Sheila's Brush?

If you live in Newfoundland, Sheila's Brush needs zero explanation. It is a storm, usually a big storm that occurs on or after St. Patrick's Day. It is typically the last big storm of the season. But who is Sheila?

The term comes from an Irish legend that says that Sheila was the wife or sister or mother of St. Patrick and that the snow is a result of her sweeping away the old season, which is fitting since Spring begins later this week.

There is also a legend that Sheila shows up to punish Newfoundlanders for the heavy partying that happens on St. Patrick's Day.

Do you believe in Sheila's Brush?