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Temperatures are starting out highly variable this morning across the Front Range as clear skies, fresh snow and light winds have allowed for exceptional radiational cooling in some areas. For example, as of 6:00 AM, many areas to the northeast were in the single digits and lower teens, including in Gunbarrel. However, most of Boulder and the Denver area near …

The passing of the primary low pressure across the region yesterday was a textbook case of lee cyclogenesis. The approaching low pressure from Utah died out over northwest Colorado, while a new low pressure formed and rapidly intensified in east-central Colorado near the Kansas border. Unfortunately this behavior led to the best energy and lift largely bypassing the Denver area …

Overnight snowfall amounts so far range from 0.5 to 1.5" across the Denver Metro area, though there is some ice glazed in with the snow too. Officially, Boulder has reported 0.9" of snow so far. There will be a bit of a break in the action this morning until later today when the main storm system arrives and begins to …

We start our 2023 on a calm note with temperatures cooler than yesterday at around 40 degrees. A developing snow storm currently over southwest Utah will favor increasingly upslope flow today and tonight. That along with a weak influx of cold air advection from the north, will result in cooler highs at around 40 degrees this afternoon. Clouds will also …

Oour airmass warms significantly today compared to Friday, with a nice slug of warm air penetrating into eastern Colorado from New Mexico. However, clouds will be on the increase today, especially in the morning, as continued westerly flow aloft from an atmospheric river forces intermittent wave clouds. We also have a lot of snow cover still on the ground. The …

Another fairly cool day is on-tap for the Front Range with minimal melting expected of the soupy snowpack on the ground --- especially for northern Metro cities. Another atmospheric river (AR) is hammering the Oregon/California coastline and the residual moisture from that will push into Colorado later today. The animation below shows the birth of the AR over the last …