Related Clues:
- Wintry woe
- Nasty fall
- Dangerous downfall
- December forecast, perhaps
- Frozen precipitation
- Reasons for an all-nighter
- Skill determinants
- They make the grade
- Winter wet stuff
- Show-what-you-know chances
- _____ storm
- Some bad weather
- Searches for signs in a hospital
- Tricky driving condition
- Mixture of rain and snow