The moisture train is very long, chugging along slowly in the PNW and BC all week. By Tuesday, it moves south to the Sierra with storm skiing 9-14 inches. That Train moves east over the Rockies as it speeds up, dumping moderate snow on many areas. The extended is slightly cooler in the PNW, with many more rounds of snow that look a bit better for the Rockies by next weekend with colder air.

Friday will see a passing rain shower in northern Oregon with mostly dry and partly cloudy conditions elsewhere. The next storm moves in on Saturday with light precipitation. Snow levels will start at 6,000 feet but lower to 4,500 feet with 1-4 inches of snow above 5,000 feet. Another storm moves in on Sunday with higher snow levels. More storms are expected next week with varying snow levels.

High pressure will lead to mild conditions over the West on Friday and Saturday, but the pattern will gradually trend cooler and more active early next week with snow chances ramping up. The East will see cold temperatures over the next 5 days with periods of light snow, followed by a warm-up after Christmas.

Thanks for reading this summer! For the rest of this week, a cold front moving across the Central Rockies will bring showers & t-storms to WY, CO, & NM Wed-Thu while the West Coast states will see a late-season heat wave. Next week, isolated to scattered showers & t-storms develop across the West with continued mild temps. Heading into mid-month, the PNW will trend wetter and cooler.