Hoar frost crystals are 'gray' or 'silver' in color, and can be magnificent. They form when humidity is fairly high and temperatures drop below freezing.

Let's talk about how frost comes into existence. There are two types of frost: depositional (also known as white or hoar frost), and frozen dew.

We woke up to a frosty wonderland Monday morning. Most of what I've seen is actually rime ice, which is similar to hoar frost but forms in different conditions.

"These recent frosty days sent me on a hunt to remind myself once again of the difference between hoar frost and rime ice — as they tend to look virtually the same until you get an up-close look." ...

Leaves and branches covered in hoar frost. Hoar frosts generally attach themselves to the branches of trees, leaves and grasses, but can also be seen on objects such as gates and flowerpots.

Fog in parts of the area Wednesday morning created some beautiful formations on the trees. Jesse Maag explains what rime ice is, how it formed, and how its different from hoar frost.

Boulder, Colo., woke up to a winter wonderland on Tuesday, though it hadn’t snowed. Instead, prickly ice needles, meteorologically known as hoar frost, coated trees and fences. Hoar frost can ...

MOLINE, Ill. — Coating trees, powerlines, and even fences, hoar frost creates a spectacular winter scene admired by many. So, what exactly is rime ice and how does it form? This unique kind of ...

WILLISBURG, Ky. — We had two unusual weather phenomena Wednesday morning with the freezing conditions that typically only happens about once a year. Conditions have to be just right for it to ...