With Greater Sudbury under a snowfall warning, it's really coming down out there now.
Two Sudbury.com staff members heard the rumble of thunder this afternoon, not a sound you'd normally associate with snow.
We also experienced the phenomenon of "thundersnow" here in Greater Sudbury in early February of this year.
Thunderstorms occur when an air mass becomes so unstable that it overturns, sometimes violently. This usually happens when drastically different temperatures meet, such as when the air closer to the ground is unusually warm and humid and the air above it is unusually cool. Because the lower layers of air are colder — and have a lower dew point — in the wintertime, these kinds of atmospheric clashes are very unusual during colder months. Still, thundersnow does happen.
Did you hear the thunder this afternoon? Let us know in the comments below.
