Author: Ben Castellani (Page 17 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 This Weekend in Colorado Weather: Daily chances for spotty April showers, but they won’t amount to much

April 9, 2026 /

Yesterday’s cold front jumped the gun, surging through around lunchtime—much earlier than any model suggested and far closer to what our gut had been hinting at. https://twitter.com/BoulderCAST/status/2041945279252066514 Boulder still managed to sneak into the low 70s before the boundary arrived, while spots like Denver International Airport stayed stuck in the 60s. Behind the front, breezy northeast winds mixed with a …

Premium BoulderCAST Daily – Wed 04/08/26 | Near-critical fire danger ahead of a cold front, rain chances tick up late-week

April 8, 2026 /

The main forecasting challenge for today regards the position and progression of a cold front that is moving into northeast Colorado this morning. The exact position of this boundary will determine how much of our area is exposed to very dry downslope flow from the west-northwest during the daytime hours and thus which areas will see near-critical fire danger. An …

March 2026 Graphical Weather Review: The warmest March on record by a massive margin (and warmer than all but a few Aprils)

April 3, 2026 /

March 2026 delivered one of Colorado’s most jarring spring months on record with temperatures skyrocketing to unprecedented levels as the region shattered long‑standing warmth records for weeks on end. Western snowpack rapidly declined during this multi-week heatwave, reaching historic lows in a majority of basins across the West, including every major basin in Colorado. Brief interjections of snow occurred during the month across the Front Range, but most the state ended with well below normal precipitation. Here’s a quick and colorful graphical recap of our weather during March and how it relates to climatology.

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Premium BoulderCAST Daily – Tue 03/31/26 | The Great March 2026 heatwave is over with cooler, showery days ahead in the Front Range

March 31, 2026 /

Congratulations, folks — if you’re reading this, you officially made it through the Great March 2026 Western Heatwave. The long‑advertised cold front slipped through right on schedule in the pre-dawn hours today, dragging a  cooler airmass into eastern Colorado from the north‑northeast. Surface maps around 3AM (below) showed the boundary draped right across the area. The air behind it is …

Premium This Weekend in Colorado Weather: Continued record heat Thursday ahead of a sharp cooldown and evening rain showers, then back to 80° for the weekend

March 26, 2026 /

Boulder and Denver both reached a high temperatures of 87°F on Wednesday, a new daily record for both cities and a new all-time March monthly record for Denver. This was Boulder's 7th new daily record high set in the last 8 days. What a run this has been... We have one more anomalously warm March day to get through before …

Premium BoulderCAST Daily – Wed 03/25/26 | Record heat in the upper 80s today, still some uncertainty for Thursday’s cold frontal timing

March 25, 2026 /

Arobust mid‑level ridge has re‑intensified over the Desert Southwest heading into midweek, and this feature is once again steering anomalously warm, bone‑dry air straight into Colorado. The ridge axis is currently centered over southwestern New Mexico, placing the Front Range beneath deep west‑northwest flow. Aside from a few lingering wave clouds overnight, today will feature far more sunshine than recent …

This Week in Colorado Weather: March 23, 2026

March 23, 2026 /

As if last week’s record‑smashing heatwave wasn’t enough, the atmosphere has decided to double down this week. After a brief cooldown, we’re gearing up for another round of exceptional warmth—with Colorado’s snowpack plunging to levels more typical of early summer than March. In today’s update, we break down the new records already in the books, the alarming snowpack decline, and what to expect as a second pulse of historic warmth takes aim at the Front Range.

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