Category: Severe Weather (Page 3 of 25)

The posts contain discussion of severe weather in our region, including forecasts, outlooks, and recaps of events involving large hail, damaging winds, and tornadoes.

Premium This Weekend in Colorado Weather: Quiet days ahead with warmth returning, but another cooldown is likely early next week

September 18, 2025 /

As expected, the slow-moving storm system that crept past northern Colorado this week didn’t pack much punch for the Boulder-Denver corridor. Most spots saw light rain on two or three days, but totals stayed modest. Boulder officially picked up just 0.27", and Denver (DIA) wasn’t much better at 0.30". The only real outlier was southern Fort Collins, where a round …

Premium BoulderCAST Daily – Tue 09/16/25 | Mostly cloudy and cooler with a conditional risk of damaging hail, mainly east of Denver

September 16, 2025 /

After a toasty Monday with highs in the mid-80s across the Metro area, we’re in for a noticeable shift in the weather pattern this week. A slow-moving upper-level trough is making its way toward Colorado, and it’s bringing cooler temps, more clouds, and a decent shot at thunderstorms. As of Tuesday morning, the center of that trough is parked over …

Premium BoulderCAST Daily – Sun 08/10/25 | Scattered to numerous storms today with the risk of hail

August 10, 2025 /

As expected, much of yesterday's storms were east and southeast of the Denver Metro. A plethora of hail reports were noted, with some to 3 inches, as well as at least one tornado. Today, that severe risk edges slightly to the west to include more of the Denver Metro area: The upper trough is still to our west, with its …

July 2025 Graphical Weather Review: Drought returns to the Front Range following our second straight hot & dry month

August 7, 2025 /

July 2025 was our second consecutive hot and dry month. The summer monsoon has been very stingy so far, leaving Boulder and much of the Denver region parched with drought conditions returning to parts of the Front Range. July didn’t hold back on extremes either: record-breaking heat at times scorched the region, plowable hail hammered Gunbarrel, and a rare funnel cloud spun up over the Foothills of Boulder County. Here’s a quick and colorful graphical recap of our weather during July and how it relates to climatology.

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Forecast Update: A busy rest of the week with potential flash flooding and severe storms, plus thickening smoke

July 30, 2025 /

Colorado’s monsoon season has been off to a sluggish start, and the latest surge storm potential this week isn’t even from the monsoon itself—it’s thanks to potent cold fronts dropping in from the northeast. In today’s update, we dig into why flash flooding is on the rise this week, which areas are most at risk, and what the next few days could mean for our thirsty landscapes. Spoiler: while heavy rain is possible, it’s only a short window and many of us won’t see it. Plus, the new blanket of wildfire smoke is likely to stick around through the weekend.

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Premium BoulderCAST Daily – Tue 07/29/25 | Much cooler today with extensive clouds and a chance of storms

July 29, 2025 /

Boulder baked under the sun Monday, hitting 99°F—just one degree shy of breaking a record that’s been standing since the 1940s. Most spots along the Front Range's lower elevations landed in the upper 90s, while the Foothills managed slightly cooler temps in the 80s. A few northeastern communities even cracked the triple digits. Thankfully, the intense heatwave is already behind …

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

July 17, 2025 /

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.

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