BoulderCAST

The last weekend of June didn’t just sizzle — it erupted. As a powerful early‑summer trough carved into the Great Basin, the Southwest lit up with new fires and thick smoke thanks to some of the most volatile atmospheric conditions we’ve seen this season. Colorado wasn’t spared, either: several fast‑growing fires ignited across the Western Slope and Mountains, sending plumes straight into the Front Range. And with a stubborn dipole pattern locking in place across the nation, the week ahead promises more wind, more dryness, and more smoke — plus a few twists in the forecast you’ll want to keep an eye on. Let’s break down what’s driving this outbreak, what it means for the Boulder–Denver corridor, and when relief may finally arrive.

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