What does the sign that shows "slippery when wet" warn drivers about?

The sign that indicates "slippery when wet" specifically warns drivers about hazardous road conditions that may arise due to rain, snow, or ice. When the road surface is wet, it can lose traction, making it easier for vehicles to skid or lose control. This sign serves as a reminder for drivers to reduce their speed and increase their following distance, as wet road conditions can significantly affect vehicle handling and braking performance. It's important for drivers to recognize this warning, as awareness of the potential for slippery conditions can help prevent accidents during inclement weather.