As we turn our calendars to March and the coming of spring weather, we can look back at a weather phenomenon that many Wisconsinites experienced in January & February.
National Geographic online offers the following explanation: “Frost forms when an outside surface cools past the dew point. The dew point is the point where air gets so cold, the water vapor in the atmosphere turns into liquid. This liquid freezes. If it gets cold enough, little bits of ice, or frost, form. The ice is arranged in the form of ice crystals.”
Rime frost forms quickly in cold wet climates; it can even form during windy weather. It has feathery ice crystals and clings to branches… it’s another form of frost that beckons you to take pictures.
HINT: Frost photo ops can disappear quickly; when wind speed increases or sunshine warms the air, those unique frosty-and-glittery photos can be lost. When you wake up to fresh frost formations, grab your phone or camera and enjoy the outdoors!
(When you come back indoors, enjoy some tea or hot cocoa and check on line for more info on frost. Google on “images” for hoar frost and rime frost for more examples. Breathtaking!)
Schmid, Certified Master Gardener