Author: Ben Castellani (Page 21 of 358)

Ben grew up in southwestern Pennsylvania and holds both a bachelor's and a master's degree in Meteorology, the latter being from CU Boulder. His hometown received nearly three feet of snow from the Storm of the Century back in March of 1993, sparking his initial interest in impactful weather. Ben currently works on remote sensing and data analysis software at NV5 Geospatial Software in Boulder.

This Week in Colorado Weather: February 9, 2026

February 9, 2026 /

After weeks of spring-like warmth and quiet skies, the atmosphere is finally showing signs of waking up in the West. While drought continues to tighten its grip and Colorado’s snowpack sits at historic lows, things are beginning to stir, subtly at first, but with hints of something more promising on the horizon. This week brings our warmest day yet with Monday approaching 70 degrees, then a quick cooldown Tuesday, and finally the return of Mountain snow midweek courtesy of a weak atmospheric river. It’s not the pattern shift we need just yet, but it’s the most active stretch we’ve seen in a while… and it may be the first step toward rebuilding what winter has failed to deliver so far in the High Country. Let’s dig in.

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Premium This Weekend in Colorado Weather: We have NO business being this warm for this long in February

February 5, 2026 /

Aquiet, unseasonably warm stretch remains locked in through the end of the week and into the weekend as a sluggish ridge of high pressure drifts overhead. Early on, the ridge will be sharply amplified into western Canada and Montana, where daily record highs will be shattered for several days. Colorado sits on the eastern flank of this ridge under persistent …

Premium BoulderCAST Daily – Wed 02/04/26 | Sun returns to the Front Range—and so does a familiar streak of unseasonable warmth

February 4, 2026 /

As expected, Tuesday evening’s rain and snow showers largely targeted areas south of Denver, especially along the Palmer Divide. Observations from Castle Rock down through Monument show anywhere from a dusting to 1 inch of accumulation. North of there—including Boulder—precipitation struggled to materialize, leaving most locations with just a trace of snow or nothing at all. The compact shortwave responsible …

Premium BoulderCAST Daily – Tue 02/03/26 | Widely scattered blustery rain/snow showers this afternoon and evening

February 3, 2026 /

Clouds are thickening over Colorado this morning as a plume of Pacific moisture streams overhead, all in advance of a compact little shortwave sliding down from the north. This disturbance is rotating around a concentric ridge parked over California—a setup that’s been steering these quick‑hitting systems straight into the Front Range for days now. Today’s wave will pass overhead this …

Premium This Weekend in Colorado Weather: An Arctic front will brush the area Friday evening, but the weekend looks lovely!

January 29, 2026 /

Aquick‑hitting mid‑level disturbance zipped through overnight, just enough to create a bit of wind and drop a light coat of snow across the High Country. It’s already racing off into Kansas and Oklahoma this morning, leaving Colorado under a calmer, slightly subsident northwest flow. Mountain snow showers will linger a bit longer, but they’ll taper off completely by lunchtime. Down …

Premium BoulderCAST Daily – Wed 01/28/26 | An overcast but mild Wednesday; Friday’s late-day cold front may bring very light snow

January 28, 2026 /

Aridge of high pressure will be passing across the Rockies today leading to quiet weather for Boulder and Denver. However, the ridge's presence will be short-lived. A disturbance is riding on its heels and will make a direct hit on the Front Range tonight. The shortwave can be seen coming in from the northwest in the 500mb vorticity/height animation below. …

Premium BoulderCAST Daily – Tue 01/27/26 | Early morning clouds will give way to a sunny Tuesday

January 27, 2026 /

Moderately strong northwest flow is still the name of the game across Colorado today, with the state wedged neatly between a stout ridge parked over the West Coast and a broad, chilly trough dominating the eastern half of the country. This classic mid-winter setup keeps the jet stream aimed right at us, but without much in the way of storm …

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