Midweek Cold Front Won't Do Much to Help Snow-Starved Start to December

It's been a quiet start to the month across much of the state as we discussed would likely be the case in this month's outlook.

Month to date temperatures have been quite cold across the CONUS, with Denver running just about a degree below average through December 10th.

Denver's just seen a Trace of snow here and there so far this month. December, on average, picks up 8.1" of snow... so we have quite a bit of work to do if we're going to get anywhere near that by the end of the month.

This week isn't likely to help us get there.

We have a cold front moving through Wednesday evening that will drop our temperatures about 10 degrees for your Thursday. As it stands, it looks like wind and some colder temperatures will be the main impacts from this "event". We're likely to see a few snow showers across eastern Colorado, but not looking for those to amount to much at this time.

The best chance to see some light accumulation outside of the mountains appears to be along the Palmer Divide Wednesday evening/overnight, depending on timing of front. Both the NAM and GFS show a quick snow burst north of Colorado Springs, with perhaps a quick 0.5" to 1.5" in spots? Outside of these scattered pockets of snow, it'll mostly be wind. Here's the 3km NAM precipitation forecast for Wednesday night into Thursday morning. Note the snow first developing in the high country, then a few showers developing across eastern Colorado as well:

The bullish WPC outlook shows where we're most likely to see some minor accumulation if we see any –– south of Denver, north of Colorado Springs, with pockets of good snowfall for the high country to boot:

The NAM snowfall forecast is similar. A bit of snow across the Palmer, but little to no accumulation for the northern urban corridor, with perhaps a slightly better chance for northern reaches of Colorado Springs Wednesday evening:

Thursday looks to be cooler, but mostly dry. Highs in Denver will be in the 40s. For Friday and the weekend temperatures warm back into the 50s for Denver, with partly to mostly sunny skies in the forecast.

Brendan Heberton

Brendan is founder of Weather5280. He is co-founder of FreshyMap, and develops software for geospatial data analysis and visualization.

Denver, Colorado
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