For many, having more than 6 inches of snow on the ground for an extended period has become a rarity in recent years. With temperatures expected to stay below 40°F for the next couple of weeks and additional snow systems on the way, several winter hazards will require ongoing attention.
1. Cold Temperatures
Yes, it’s winter, and snow naturally brings a chill to the air. But did you know that snow can actually make temperatures feel colder? Here’s why:
During the daytime (and with the assumption that temperatures remain near / below freezing), snow reflects over 80% of the sun’s radiation back into space. In addition, this keeps the ground cooler, by trapping the air near the ground (insulation) and slowing the process of heat from the ground reaching the air. During the night when skies are clear, radiational cooling allows for any heat near the surface to be displaced back into space.
2. Refreezing
Even with treatments like salt or brine, and the occasional help of sunlight, snow and ice can be a persistent problem on sidewalks, parking lots, and roadways—especially when temperatures dip below freezing each night. The risk of refreezing and black ice remains a constant concern. After a heavy snowstorm, it can take days for neighborhoods and roadways to be fully cleared, and the melting snow on top of high-profile vehicles can spill onto cleared roads, creating new slick spots. Over time, this can contribute to hazardous driving conditions.
3. Melting and Freezing Fog
As temperatures rise slightly above freezing and snow begins to melt, widespread evaporation can occur. In the evening, cool, moist air may settle near the surface, and this can create fog—or even freezing fog—depending on the exact temperature. Though it may only last for a short time, this can create dangerously slick conditions, especially on elevated surfaces like bridges and overpasses.
As the active winter season continues, staying aware of these potential hazards is crucial. Clarity is here to help you navigate these threats and stay informed in real-time, so you’re always prepared for whatever the season brings.