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A bitter cold past few days all thanks to an arctic High Pressure over the upper Midwest. Today, expect partial sunshine with still some cloud cover working in by the afternoon hours. With snow cover still on the ground, we can expect highs only near 40 degrees in Boulder. Middle 40's are possible in the Denver metro, however. It will …

Many areas dropped below freezing this morning, some more than others (cough, Greeley!). In fact, this was our first below-zero morning since early January in 2015 (almost two years). Starting out so cold this morning, and with the Arctic air mass in place, we won't be warming up too much. With that glorious sunshine returning today, expect only a high in …

How about that snow last night? It seems out forecast turned out alright. We'll see up to another 1/2" to 1" or so of accumulation this morning before the snow tapers off by late morning. Skies will remain overcast for most of the day, though some clearing may be possible towards sunset. Don't expect too much warm-up... We may briefly …

Our snow event for this evening remains on track, per our forecast last night. Arctic air has arrived! As of 6:30AM, it is currently a nippy 12 degrees at BoulderCAST Station. We mentioned in last night's post that the storm system was moving slower than models were predicting. That still appears to be the case. High-resolution models don't show snow …

Mostly sunny skies can be expected today. Much warmer as highs reach the mid to upper 40's across the Plains. We're watching a potential snow storm this coming week. More on that in our weekly post. Have a great day!

After a snow-showery and cold Friday, today turns warmer with sunshine taking hold. A weak system in the northwest flow is pushing through, but it won't affect us by any means. Its impact will be felt with westerly winds, which may produce wind gusts of 25-30 mph in the morning and early afternoon. Look for highs to rise to the …

Below shows the mid-level atmospheric flow along with the relative humidity (shaded contours) indicating cloud cover. The area of low pressure is over southern Arizona with southerly flow pushing northward with moisture. High relative humidity over Colorado is a result of the system bringing in upper-level forcing and moisture. At the surface, northeasterly upslope flow will lead to highs only …