Author: Ben Castellani (Page 6 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: August 31, 2026

August 31, 2026 /

The atmosphere is gearing up for a busy stretch in Colorado, and this week’s forecast has a little bit of everything: a juicy monsoon plume to start, a sharp mid‑week dry‑out, and eventually a deep moisture surge tied to a tropical cyclone that could push the state’s moisture levels into rare territory. Whether that translates into meaningful rainfall east of the Continental Divide is the big question — and the answer hinges on timing, storm motion, and whether we can sneak in a well‑placed cold front or two. There’s plenty to watch this week for the Front Range. Let’s dig into the details.

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Premium BoulderCAST Daily – Sun 08/30/26 | Ridge Retreats, Monsoon Flow Strengthens Today into Monday

August 30, 2026 /

Mid‑level shortwave energy is sliding across the northern Rockies this morning, tracing the Canadian border and it will have some influence on our weather. The dominant ridge of high pressure — the same one that’s been sunbathing over Texas and New Mexico all week — gets pushed a bit east, with its center expected to wobble into Arkansas by tonight. …

Premium BoulderCAST Daily – Sat 08/29/26 | Warm with Limited Late-Day Storms

August 29, 2026 /

The 90s continue today as anomalously warm air overspreads the region. This warmth extends from New Mexico into Minnesota, several hundreds of miles. With low pressure to our west in the Pacific Northwest, a persistent southwest flow will continue today and Sunday, keeping temperatures in the lower 90s. As mentioned in our weekend outlook, clouds will be quite prevalent this …

This Weekend in Colorado Weather: Storm Chances Shrink While Heat Surges Into the Weekend

August 27, 2026 /

Boulder and Denver finally cashed in on a little monsoon moisture yesterday as evening storms rolled off the higher terrain. Boulder’s cell was a compact over‑achiever — about 30 minutes of moderate to heavy rain, pockets of small hail, and a nice reminder that the monsoon can still deliver when it wants to. Denver’s storm was the beefier one, even …

BoulderCAST Daily – Wed 08/26/26 | Front Range Braces for a Few Severe Storms with Large Hail Today

August 26, 2026 /

Sunny skies won the morning battle, and that’s a pretty big deal for how today evolves. Despite a few models finally hinting at morning stratus and even a nocturnal MCS‑generated outflow boundary drifting in from northeast Colorado, the Front Range completely dodged the stratus deck. The Denver webcams shows full bluebird conditions across the entire Denver Metro area, meaning the …

Premium BoulderCAST Daily – Tue 08/25/26 | Cooler with More Run-of-the-Mill Storms Today, But Big Hail Could Be an Issue Tomorrow

August 25, 2026 /

An all-to-familiar pattern sets up again today, though we do have a couple subtle tweaks worth mentioning. A potent, record-strong ridge remains anchored over southern New Mexico, positioned almost directly south of Denver. Clockwise circulation around this high continues to advect monsoon moisture north into the Four Corners before bending east toward the Front Range. Much like recent days, the …

This Week in Colorado Weather: August 24, 2026

August 24, 2026 /

A stubborn late‑summer pattern is locked in across the Front Range this week. While it won’t bring major shifts, it will deliver subtle day‑to‑day changes worth watching. A strong subtropical ridge keeps monsoonal moisture just high enough for daily storm chances, yet still too disorganized to produce reliable rainfall — a theme all summer. With shifting flow aloft, a mid‑week cold front and moisture bump, and a gradual drying trend late in the week, there’s plenty to unpack, from renewed severe potential to evolving flash‑flood risks and ongoing drought concerns. Read on as we break down the key ingredients driving this persistent — and likely still underperforming — monsoon pattern.

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