Author: Ben Castellani (Page 9 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.

This Week in Colorado Weather: July 27, 2026

July 27, 2026 /

Eastern Colorado just came off a truly blistering weekend, with Denver and Boulder both shattering daily records as temperatures surged past 100°F on back‑to‑back days. Now the pattern is shifting, at least temporarily. An unusually juiced monsoon plume will set the stage for more robust afternoon storms through mid‑week, including a legitimate threat for locally heavy rainfall and burn‑scar flooding. But the faucet will shut off quickly. A rapidly intensifying Southwest heat dome will retrograde into Arizona late‑week, cutting off monsoon flow, drying out northern Colorado, and potentially steering wildfire smoke from the Pacific Northwest into the state as winds shift. By the weekend, the Front Range will sit on the fringe of that expanding heat dome, meaning another round of hot, dry weather and potential triple-digit readings again. Read on for all the details.

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Premium BoulderCAST Daily – Fri 07/24/26 | Intense Heat Roars Back This Weekend as Storms Decline

July 24, 2026 /

We’re easing back into a more suppressed monsoon phase across eastern Colorado today as high pressure flexes again over the region. The ridge was knocked down earlier this week, but it’s quickly reclaiming the steering wheel. Expect it to dominate through the extended period, sending temperatures surging toward 100° this weekend and trimming back our rain chances. Today is likely …

Premium This Weekend in Colorado Weather: One More Stormy Day Before the Intense Heat Reclaims Colorado

July 23, 2026 /

MThursday: Cooler with More Monsoon Storms onsoon‑driven thunderstorm activity remains the headline for our Thursday, though the atmosphere is playing a slightly different tune compared to yesterday. A compact shortwave disturbance is sliding along the northern edge of the sprawling ridge parked over the Southwest, providing mid‑level lift early in the day. The timing isn’t ideal — the best forcing …

Premium BoulderCAST Daily – Tue 07/21/26 | Record Heat Fades as Haze and Spotty Storms Take Over

July 21, 2026 /

Temperatures surged to near the century mark across the Metro on Monday, easily our hottest day in more than a year. Denver topped out at 100°, still well shy of its daily record of 105°. Boulder was the local overachiever, hitting 101° and notching a new daily record for July 20th. A weak backdoor front slipped through early this morning, …

Premium This Weekend in Colorado Weather: Several More Scorching Days Ahead Before the Long‑Awaited Monsoon Pattern Arrives

July 16, 2026 /

HThe Ridge Re-Aligns ot, dry, and relentlessly sunny — that’s the story for the Boulder–Denver area through the weekend, with our long‑advertised pattern shift finally starting to take shape… just not fast enough for those of us hoping for immediate relief. The once‑dominant high‑pressure dome sprawled across North America has weakened and begun reorganizing into a more classic Four Corners …

Premium BoulderCAST Daily – Wed 07/15/26 | The Ridge Rules the Rockies as Hot, Dry Pattern Holds Firm

July 15, 2026 /

For the fourth straight day, temperatures soared well into the 90s on Tuesday, officially reaching 95° in Boulder and Denver. The heat remains firmly entrenched across the greater Front Range as a broad, quasi‑stationary 500 mb ridge sprawls across most of the continental United States. This ridge has shown very little inclination to budge, maintaining strong subsidence, clear skies, and …

Premium BoulderCAST Daily – Tue 07/14/26 | The Front Range Continues to Bake Under Expansive Ridge

July 14, 2026 /

FHottest Day of the Week Behind Us or the third straight day, Boulder’s official high temperature hit 97°F on Monday, once again tying the hottest reading of 2026. That’s still a solid 5° shy of the July 13th record of 102°F set back in 1954. For context, our climatological average high this week is 88°F. Our station—and the Boulder Airport—both …

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