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Detailed Forecast Discussion: A quiet and mild day is expected for the region as a rather warm airmass accompanied by anomalously high pressure resides across most of the country. Today's 500mb height anomaly forecast map below pinpoints a cut-off low pressure system near the coast of southern California with an elongated trough extending northeastward into Montana. This trough will weaken …

Detailed Forecast Discussion: Highs to be about 8 degrees cooler today thanks to increasing cloud cover and the threat of scattered showers this afternoon and night. At the surface (below), we have a weak cold front pushing down from the north later today and this evening. We'll start off with sunshine, but clouds will work in for the afternoon and …

Detailed Forecast Discussion: Highs today continue the trend we saw on Friday; that is, upper 60's to lower 70's across the Front Range. The ridge of high pressure (below) is anchored over far southern Louisiana and the northwest part of the Gulf of Mexico. This placement is key to bringing us that warm southerly flow up from Mexico, into New …

Detailed Forecast Discussion: Temperatures will be on their way up today and tomorrow, all thanks to a strong and potent ridge of high pressure over the region (below). The ridge is fairly anomalous as indicated by the warm red shading in the below figure. Outside of the ridge, there is a trough of low pressure situated over Virginia today, with …

Detailed Forecast Discussion: Temperatures will cool off slightly today following the passage of weak cold front overnight. The front passed through Boulder around 2:30AM last night, dropping temperatures quickly from the upper 40's into the upper 20's! The associated low pressure system and trough are located well to our north and east. We're only catching the very tail-end of the …

Detailed Forecast Discussion: Over the next few days, high pressure will build into Colorado from the west. While the ridge is taking its time to move in, we're already feeling some of its effects today with gorgeous conditions expected. In between an approaching trough in Montana and the cut-off low in Texas, our weather will be quiet across the Front …

Detailed Forecast Discussion: After a blanket of wet snow Sunday night, low clouds and fog melted away like butter yesterday morning. As usual, the stratus deck hung around longest in the Boulder Valley. The GOES-East visible satellite animation from Monday morning shows the dissipating clouds and melting snow. We can also see which areas got hit the hardest with the …