Summer Snow Hits Rockies, East Boasts Heat Dome

Much of the western United States is preparing for a considerable cool-down and precipitation, including summer snow in the northern Rockies by the weekend of June 27-28. A potent cold front is expected to bring relief from heat, with temperatures dropping below seasonal averages. Widespread rain is anticipated across various areas, with over an inch possible in higher terrains. The mountains could see accumulating snow, and temperatures are expected to be unseasonably chilly, with valleys in the 50s and 60s and higher areas in the 30s and 40s.

Conversely, the eastern half of the United States is forecast to experience a warming trend. A large area of high pressure may develop into a heat dome, leading to warmer-than-normal temperatures east of the Rockies. This pattern suggests a potential for heat leading up to the July 4th holiday, creating a stark weather contrast between the two halves of the country.