00:00Temperatures will drop by 25 to 50 degrees Fahrenheit across the western U.S. this weekend.
00:05This dramatic shift comes as the jet stream plunges south, fueling an early-season snowstorm in the Rockies.
00:11After highs near 90 degrees in Rapid City, South Dakota on Friday, temperatures will fall to the 50s by Sunday.
00:18Even southern California cities like Los Angeles and Sacramento will cool from near 100 degrees to the 70s.
00:25Tropical moisture from Hurricane Rachel will join the colder air.
00:29Bringing rain to river basins in Colorado and Idaho, snow levels will fall in Washington, Oregon, California, and Montana.
00:37With some valley locations seeing snow for the first time this season, Glacier National Park can expect heavy snow.
00:43With 6 to 12 inches possible at elevations as low as 4,000 feet,
00:48AccuWeather forecasts up to 24 inches of snow in the highest terrain during this storm.
00:53Disclosure. This video contains stock footage and content created or enhanced using AI-assisted tools.
