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WDetailed Forecast Discussion: hile not record-breaking, yesterday's temperatures were very warm across the Front Range. Boulder reported a high of 74°F, while Denver notched 72°F. In general, there is still broad but flat ridging in place across the western United States, while a deep trough stays the course over the East Coast. It will be much colder today behind the …

A Detailed Forecast Discussion: stark contrast can be seen from the west coast to the east coast. Warmth under a dome of high pressure aloft is present from the Rockies toward the California coast. A trough of low pressure remains in place over the eastern US, with colder air in place through the first half of the upcoming week there. The …

A Detailed Forecast Discussion: mid-level trough today will be moving southeast out of the upper Midwest (below). It will track further east tonight and tomorrow into the eastern US. As for our sensible weather, the trough axis has brought a cold front through the area for our Saturday. It is that time of year where subtle changes in the atmospheric flow, …

A Detailed Forecast Discussion: mid-level shortwave passes to our north this afternoon and evening, from Montana into the Dakotas. It won't do much for our sensible weather except bring in high clouds later today. At the surface, downslope warming continues from our Thanksgiving day. As you can see below, the westerly flow in the low-levels will aid temperatures rising further to …

TDetailed Forecast Discussion: he trough axis which brought a light round of snow to the area yesterday has pushed east of Colorado with dry northwest flow taking over. Today's 500mb vorticity forecast map from the GFS model is shown below. Notice how the trough stretches from the Great Lakes into Kansas where it pivots towards a weak cut-off low in …

TDetailed Forecast Discussion: he beautiful weather we had yesterday will continue for this Tuesday as Colorado remains under a warm downslope pattern with winds aloft out of the southwest. There is a trough headed our way from the Pacific Northwest right now, but that will be a concern for tomorrow. For today expect another great one with morning sun transitioning …

TDetailed Forecast Discussion: he mid-level pattern today features a ridge of high pressure slowly building eastward from the west coast. Troughing over the Midwest is moving east toward the eastern U.S. Over us, there will still be northwest flow aloft, so another somewhat chilly day in the upper 40s to around 50 degrees. The cold air behind the cold front …