We'll Leave The Light On For You
Jon Burch Photography
Photograph - Digital Capture/digital Painting
A brightly burning yard light in the middle of a Colorado snowstorm. I was looking out the window and saw that the city yard light was on and glowing. Thought it might make a nice Christmas card so I quietly went into 'stalk' mode and surprised it before it knew I was there. 'Click' went my camera and the moment was mine forever! It never knew what hit it.
Snow falls in the form of flakes of crystalline water ice that fall from clouds. Since snow is composed of small ice particles, it is a granular material and has an open and therefore soft structure, unless subjected to external pressure. Snowflakes come in a variety of sizes and shapes; types that fall in the form of a ball due to melting and refreezing, rather than a flake, are known as hail, ice pellets or snow grains.
Snow tends to form within regions of upward movement of air around a type of low-pressure system known as an extratropical cyclone. It can fall poleward of these systems' associated warm fronts and within their comma-like shape of cloud precipitation patterns. Where relatively warm water bodies are present, water evaporation causes lake-effect snowfall that can become a concern downwind within the cold cyclonic flow around the backside of extratropical cyclones. Lake-effect snowfall can be heavy locally. Thundersnow is possible within a cyclone's comma head and within lake effect precipitation bands.
In mountainous areas, heavy snow is possible where upslope flow is maximized within windward sides of the terrain at elevation, if the atmosphere is cold enough. Snowfall amount and its related liquid equivalent precipitation amount are measured using a variety of different rain gauges.
Original photograph was made with a Canon t3i camera.
April 15th, 2013
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