UPDATE on rain and snow event for Denver

Quick update this afternoon on what has been an interesting morning in the weather model world. The GFS, which was largely dismissed after last night's rather bullish run, continued to produce a good amount of QPF for Denver this afternoon and tonight. If it were to verify, widespread totals of 3 - 6 inches would be possible, with rain on the front side the only thing keeping that from being 7 or 8 inches. It is (probably) safe to say that the GFS is still a bit too gung-ho with this system, but the overall trend has been up with precip totals, not down.

For snow totals. . . 1 - 4 inches will be possible for Denver by Tuesday morning. Can not rule out isolated higher totals in snow-favored locations and anywhere a heavier band (discussed last night) may setup. The other limiting factor for snowfall totals will be timing - how soon we change to all snow. More rain = less snow.

Timeline. . . Rain showers will develop over the foothills and front range by mid afternoon, becoming more widespread as we head into the evening hours. As the sun goes down snow will begin to mix with rain, eventually changing to all snow. The optimist would look to have this happen around 6pm.

With models varying so greatly, evening with precip approaching, it is certainly shaping up to be a fun 12 hours. Stay tuned!

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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