sun on frost
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Frosty Trees

One of my favorite things about winter is hoarfrost. According to Britannica.com, hoarfrost is the “deposit of ice crystals on objects exposed to the free air, such as grass blades, tree branches, or leaves. It is formed by direct condensation of water vapour to ice at temperatures below freezing and occurs when air is brought to its frost point by cooling. Hoarfrost is formed by a process analogous to that by which dew is formed on similar objects, except that, in the case of dew, the saturation point of the air mass is above freezing. The occurrence of temperatures below 0° C (32° F) is not enough to guarantee the formation of hoarfrost. Additionally, the air must be initially damp enough so that when cooled it reaches saturation, and any additional cooling will cause condensation to occur.” 

We get hoarfrost in Southcentral Alaska on a regular basis in the wintertime, since we get cold temps with moisture in the air. We’re having a spell right now, so here are some recent pictures I took. Enjoy!

 

raven and frost
raven and frost
sun on frost
sun on frost

 

 

 

 

 

 

 

frost on trees
frost on trees
hoarfrost
hoarfrost

Your Heart Knows the Way. I love to share my passion for Alaska and its history in my writing.

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