Hoar frost!

Hoar frost in Moncton, 17 Feb 2012 (TWN)

For the first time I’ve noticed this winter and for the past two mornings, hoar frost has settled over Greater Moncton – a rather interesting and beautiful sight.

According to its official definition, hoar frost occurs when there is high humidity in the air and the tree limbs (or grass or even the antenna on your vehicle) have a temperature below the dew point.

The water vapor from those surfaces skips the dew process and goes directly to a frozen state.

Fog and temperatures slightly below freezing during the last couple of nights would have created high humidity and produced hoar-frost.


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