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Today is a day where the weather is in transition. We'll start off sunny, but clouds will stream in ahead of a strong area of low pressure poised to take aim on the region as early as late tonight but primarily tomorrow. In the mid-level pattern below, this afternoon that storm system will be over southern California. It's a cutoff …

We are sitting pretty today to end the week. The nation's weather is shown below in terms of the mid-level heights and anomaly pattern. You'll notice a lot of red and orange, especially across the Midwest and inter-mountain west. A nice ridge of high pressure is building in today from Mexico and will be the dominant weather player through tomorrow. …

Another cold day under Arctic high pressure Following the light snow yesterday, which ended in most areas before midnight, skies cleared and temperatures dropped like a rock into the single digits and even below zero in the Foothills overnight. We'll post the snowfall totals later this morning when more reports come in, but it looks like most areas picked up …

Light snow wanes, another round tomorrow The speedy shortwave disturbance responsible for the light taste of snow overnight will quickly exit eastward this morning into Kansas and Nebraska. The GFS model 500mb vorticity forecast maps below show the transition of the exiting wave through the day. Snow has tapered off already for most areas, but light snow could persist in …

Active day for weather on this Sunday. A very strong upper-level jet streak (below) is tracking through the state today and tonight. The jet is oriented from northwest to southeast. For the mountains, we can expect a dumping of snowfall, especially northwest facing slopes over northern and northwest Colorado. Steamboat is highly favored for over a foot of snow possible. …

A cold front passed through early this morning/last night and behind it we will be colder today but certainly not extreme cold as we had during the work week. Shown below is the near-surface temperature, wind, and height field. Easterly upslope flow will be around much of the day today, with temperatures holding in the lower 40's for most of …