Category: Weather in the News (Page 1 of 16)

These posts cover interesting weather phenomena from around the world, and won’t be specific to Boulder County. However, Earth is very diverse in the world of weather, so you will surely learn a thing or two.

Why Boulder’s official weather station has moved so much over the last 130 years—and why it matters today

January 6, 2026 / BoulderCAST Team / 0 Comments

Boulder’s “official” climate record has never lived in one place for long. Over the past 130 years, the instruments that track our temperature, precipitation, and snowfall have been relocated again and again—sometimes only a few blocks, other times miles away into landscapes with completely different quirks and microclimates. Each move left its own imprint on the long‑term dataset we use today, subtly shaping how we compare modern conditions with the Boulder of decades past.

Rare and beautiful funnel cloud spotted in the Foothills of Boulder County Wednesday afternoon

July 17, 2025 / BoulderCAST Team

Wednesday may have felt underwhelming across the lower elevations of the Front Range, where lingering low clouds kept things calm and cool for much of the day — but just west of Boulder, up in the sunshine-soaked Foothills, something rare and striking took shape Wednesday afternoon. A graceful funnel cloud twisted above the mountain peaks in a spot where such phenomena almost never occur. We explore why tornadoes (and their funnel-shaped precursors) are so uncommon in Colorado’s higher terrain, and take a closer look at what makes broader Boulder County particularly adverse to tornado development.

Cleaner air is just another reason that official city fireworks will never return to Boulder

July 5, 2025 / BoulderCAST Team

While fireworks once lit up Boulder’s Fourth of July, the city has moved on from the tradition due to rising fire risks, noise concerns, crowd issues, and high costs. But there’s another reason to consider: air quality. This year’s air quality data from across the Denver Metro area revealed that Boulder’s lack of a city-run fireworks show resulted in noticeably lower pollution levels compared to neighboring cities.

December 2024 Graphical Weather Review: A warm and non-snowy end to 2024

January 28, 2025 / BoulderCAST Team

After a definitively wet November in the Front Range, Mother Nature did a complete one-eighty with December landing one of the warmest and least snowy on record in many locations, topped off with our first rainy Christmas in 82 years! Here’s a quick and colorful graphical recap of our weather during December and how it relates to climatology.

This Week in Colorado Weather: June 3, 2024

June 3, 2024 / Ben Castellani

After a mostly quiet and warm weekend, things will more-or-less remain unchanged for the first full week of June. Temperatures will stay warm to hot with only a small chance of rainfall this week. We’ve managed to dodge the nineties so far in 2024, but that bout of good fortune will run out later this week with multiple days soaring above 90 degrees. Read on for all the details.

Denver Hailstorm Recap: Unexpected, nocturnal supercells pummeled parts of the Denver area with baseball-sized hail Thursday night!

May 31, 2024 / BoulderCAST Team

A pair of severe, supercell thunderstorms exploded across the northern Front Range late Thursday evening with very little advanced notice for residents. Hail larger than baseballs caused significant property damage on the northern and northeastern Metro area — roofing, siding, car windows and gardens stood no chance against the onslaught. The hail repair and insurance scammers are probably already knocking on doors this morning or making cold calls! We take a look at where the largest hail fell and why the forecast was so poor.

Colorado Aurora Forecast Update: Cloudy skies in the Front Range Saturday night will require eager viewers to head north to see round two!

May 11, 2024 / Ben Castellani

In extremely rare fashion, Mother Nature’s incredible showing of the Northern Lights Friday night extended across nearly the entire continental United States, including a shimmering display of pink and green hues over the Denver area. If you somehow missed the exceptionally infrequent sight Friday night, you have a second chance Saturday night as severe geomagnetic storming is set to continue across planet Earth for at least one more night. Unfortunately, you won’t be able to see much in the Front Range this time around due to cloud cover. However, a couple hours of interstate driving should be enough to reach clear skies in order to take in round number two Saturday night. Let’s discuss!