Author: Ben Castellani (Page 18 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.

Premium BoulderCAST Daily – Fri 03/20/26 | A very warm Friday ahead of high-end fire danger and likely 90° readings on Saturday

March 20, 2026 /

As expected, Boulder and Denver both set new all-time March monthly record highs on Thursday reaching a toasty 85°F during the afternoon hours. This broke Boulder's prior March best of 83° set back in 1910. Sadly, this record high won't even last 24 hours, with a slightly warmer day expected for our Friday. The map below shows the long-term weather …

Colorado Heatwave Update: Record-setting March heatwave continues through Saturday with near-critical fire danger—then comes Round #2 next week

March 19, 2026 /

Wednesday’s remarkable 80° warmth marked the start of a stretch that’s far more reminiscent of early summer than mid‑March here in Colorado. An unusually strong ridge of high pressure is now locked over the region, setting the stage for several more days of exceptional heat with widespread record temperature destruction and increasing fire concerns. A brief cooldown will arrive over the weekend, but the broader pattern remains firmly tilted toward above‑normal temperatures the rest of the month, including a secondary heatwave already brewing for next week. Here’s a look at how this historic heatwave setup will unfold across the Front Range in the many days ahead.

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Premium BoulderCAST Daily – Wed 03/18/26 | Extreme Southwest heat dome targets Colorado with temperature records set to be obliterated the rest of the week

March 18, 2026 /

The final days of winter are about to behave more like midsummer along the Front Range. An exceptionally strong ridge of high pressure is locking in over the American Southwest for several days, funneling hot, bone‑dry air directly into Colorado through Saturday. As of Wednesday morning, the ridge is already evident on water‑vapor imagery, centered over central California and rapidly …

Premium BoulderCAST Daily – Tue 03/17/26 | Historic ridge begins its trek inland today kicking off a multi‑day heatwave throughout Colorado

March 17, 2026 /

AAfter a legitimately chilly Monday — late‑day temperatures scraped into the lower 50s — we now step directly into what will become a multi‑day, mid‑March heatwave as a historically strong ridge of high pressure begins sliding inland. This ridge is not just going to bring us a garden‑variety warm spell. As we've been advertising for nearly ten days now, this …

Premium BoulderCAST Daily – Thu 03/12/26 | This is the first of three consecutive critical fire weather days as gusts reach up to 100 MPH in the Foothills

March 12, 2026 /

The long‑signaled mountain wave windstorm is already underway before sunrise across the Foothills west of Denver and Boulder. Stations between 7,500 and 9,000 feet are routinely gusting 60–70 MPH as the wave begins to organize. Downslope amplification will strengthen steadily through the day, with the core of the event expected from roughly 10 AM to 8 PM, when peak gusts …

This Week in Colorado Weather: March 9, 2026

March 9, 2026 /

Warmth, wind, and a whole lot of déjà vu are back on the menu along the Front Range this week. After Sunday’s near‑record heat wiped out most of Friday’s snow, the pattern ahead looks suspiciously like the one we’ve been stuck in all winter — breezy downslope days, a meaningless cold front, and another surge of unseasonable warmth waiting in the wings. Fire danger, early Mountain snowpack melt, and record high temperature records will all come into play as we head deeper into the week and the month of March. Read on for all the details.

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