If there's snow in the forecast, parents may find a spoon under their kids' pillows or wonder why they're wearing their pajamas inside out.
Those superstitions aren't likely to impact whether school's announce a snow day (or will they?), but several different websites promise to give you the inside scoop on whether they can plan to sleep in or need to get their homework done.

Detroit Free Press

Local News in Illinois
America News
1011 Now Lincoln
WCBI-TV
The Seattle Times
WWSB
KSNB Local4 Central Nebraska
Hawaii News Now
New York Post
Cinema Blend