Out west, dry conditions are fueling dangerous wildfire growth. In Nevada and Texas, months of below-normal rainfall have left vegetation critically dry, and that dried-out landscape is turning into fuel for fast-moving fires.

Firefighters in both states are battling blazes that are spreading quickly, pushed along by gusty winds and low humidity. Officials say the combination of parched land and triple-digit heat is creating explosive fire behavior.

The Ross fire in northern Texas ignited on Monday afternoon and has already scorched more than fifty thousand acres a day later. In Nevada, the Hawk fire has been raging since the weekend, forcing tens of thousands of Reno residents to evacuate.

Tying it all together is a strong area of high pressure — a heat dome — parked over the western and southern U.S. High pressure like this traps hot air near the surface, suppresses rain chances, and pushes temperatures well above normal.

It's a self-reinforcing cycle: less rain means drier vegetation, and drier vegetation means fires spread faster and burn hotter once they start.

That same pattern is about to nudge closer to home. Here in Mid-Missouri, high pressure will start expanding into our region this weekend, and we'll feel the difference.

Expect highs climbing several degrees above average into the low 90s by Saturday and Sunday, with sunshine dominating the forecast and rain chances shrinking. We won't see anything close to the extremes playing out in Nevada or Texas, but it's the same broad weather pattern giving us a preview of the heat building across the country.