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Written by Reed Timmer
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Tuesday, 23 March 2010 23:20 |
A textbook early spring snow storm has been hammering the foothills and adjacent high plains of Eastern Colorado this afternoon and evening, with up to 3 inch per hour snowfall rates reported in the Denver Metro earlier. These situations occur as a surface cyclone develops to the lee of the southern Rockies, and an associated density current of cold air surges south just east of the mountains. Easterly low-level winds that are induced to the north and northwest of the new surface low pressure area are forced up and over the cold pool of air trapped east of the mountains, and also upward over the orography. Initially, when the cold pool is still relatively shallow, the greatest ascent occurs due to orographic lift near the foothils area and immediately east, but as the depth of the cold pool increases, the greates upward motion occurs further east as air is forced up and over the cold pool. I was just in Denver airport earlier today, and was contemplating skipping out on my flight just to experience this event! Possible severe weather with this system in Northwest Texas! Stay tuned..
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Comments
Also, I am so glad I didn't move to Texas like I planned. The weather in WI is a lot better.
The storm across Kansas and Missouri looks promising, if it can hold together.
It's pretty crazy out here. The snow itself has tapered off, but the accumulation has done it's damage. The roads are a wreck, as well as a few of the cars on those roads.
I'd get pictures, but everything I've taken has come out as just a white screen...although that's pretty much all I see from my window. Got a tree just outside and only human eyes can tell the difference between the tree and the snow-covered ground below. I didn't expect to see anything like this.
I'll have to look around for accumulation totals. It looks pretty crazy, give ya that.
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