Wednesday PM update: Some rain and snow around by Thursday morning, worst of it stays in the mountains

As promised, quick update this evening on tomorrow's rain and snow chances. Snowfall totals still don't look huge –– temperatures will be borderline for snow, and very few of the models are showing much in the way of accumulation.

With timing possibly coinciding with the morning rush, it's worth just keeping an extra eye on the weather tomorrow morning, however, and perhaps giving yourself a little extra time on the way to work just in case you encounter some rain or snow.

The timeline for Denver and surrounding areas still show the chance of precipitation ramping up around daybreak Thursday, then dropping off through the afternoon. Temperatures will begin just below freezing in Denver, and climb into the mid to upper 30s during the day:

The latest HRRR model run appears to be coming in decently wet, with this particular model showing rain and snow push from west to east across the state tonight, arriving along the Front Range and urban corridor between 4am and 7am. By the last frame, it has a moderate rain/snow mix over the Denver area for the morning drive, a possibility:

For snow, the once bullish NAM has backed off considerably, with just a Trace to 0.5" of snow where it shows any, and for must of us, not even that much:

The latest GFS shows a bit more potential, with a Trace to 3" west of I-25, and again across the Palmer Divide:

And the high-res NAM again showing totals not all that impressive for most locations, but a spotty 1 - 3" on Denver's west side and across the Palmer Divide:

So, maybe not a huge event... but if you end up under a rain or snow shower your commute could certainly be impacted. Perhaps implied, but we'll stick with 0 - 3" for this event, many seeing no accumulation, but a few locations seeing a couple of inches. The greatest probabilities for seeing 1 - 3" of snow will be west and south of Denver. If you happen to see a quick burst of accumulation tomorrow, let us know!

Otherwise plan on a cool and unsettled Thursday, followed by a warmer and drier Friday and Saturday to wrap up the week.

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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