Author: Ben Castellani (Page 2 of 294)

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.

Particularly Dangerous Red Flag Warning active in the Foothills on Friday—stay weather aware through midnight tonight!

Winds are howling across the Foothills this morning, with gusts topping 70+ MPH and fire danger at historic levels. For the first time ever, Colorado is under a Particularly Dangerous Situation Red Flag Warning—an extraordinary designation from the National Weather Service. While Boulder itself could dodge the absolute most extreme winds, conditions remain somewhat uncertain overall, and things will definitely be highly volatile in the Foothills. We breakdown the latest model updates and step through how this dangerous Friday will unfold across the area.

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Wednesday Windstorm Update: Significant downslope winds and high fire danger expected from late morning into early evening

Hold onto your hats, Colorado—today’s forecast isn’t just another breezy afternoon. A fast‑developing mountain wave event is lining up to deliver some of the strongest winds we’ve seen in quite some time, with Boulder squarely in the bullseye for this event. We’re talking winds that can go from calm to extreme in minutes, near-critical fire danger with every gust, and even the likelihood of planned and unplanned power outages. Add in mountain snow squalls and a sharp cold front tonight, and it’s definitely a busy day in Colorado weather. Read on for the full breakdown of timing, impacts, and what you need to know to stay safe as the event unfolds.

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This Week in Colorado Weather: December 15, 2025

The Front Range has been defined by relentless warmth, gusty winds, and bone‑dry conditions of late—and that theme isn’t breaking anytime soon. Even with a strong cold front charging through midweek, the cooldown will be pitiful, dropping us only back to “normal” while lasting only a single day, and it comes at the price of near‑critical fire danger beforehand. With highs hovering near or above 60° almost every day leading into Christmas and precipitation chances close to zero, a brown holiday is essentially guaranteed for the Boulder–Denver area. Read on for our full outlook of our weather heading into the holiday period.

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This Week in Colorado Weather: December 8, 2025

The Front Range finally saw its first real snow of the season last week, with Boulder picking up about 8 inches and the Foothills a bit more. The Mountains then cashed in over the weekend, stacking up one to four feet of powder. While this moisture is a welcome boost to our lagging snowpack, it’s not enough to erase drought concerns—but fire risk this year looks very different than the setup before the Marshall Fire. Looking ahead, the story shifts from snow to wind: multiple high‑wind events are on tap for the Foothills this week, while Boulder and Denver stay mostly dry and mild with highs in the 50s to 60s with occasional breeziness. Read on for the full breakdown of this week’s weather.

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