Expect a wet weather day in parts of the West this Thanksgiving, while conditions generally improve in the East.
In the West, the northern half of a Pacific storm will move through Oregon, the Northern Intermountain West, and the Northern Rockies with rain, high elevation snowfall, and windy weather conditions. To the south, the southern half of this system will produce moderate to heavy rainfall and breezy conditions in northern and central California. Coastal rains will spread inland through the morning and afternoon, while up to 2 inches of light snowfall falls in the Sierra Nevadas at snow levels between 5,500 feet and 6,500 feet. Finally, another front will move into the Pacific Northwest Thursday afternoon with coastal rain and high elevation snow. Snow in the north and central Cascades will increase and spread inland during the afternoon and evening hours turning into heavy snowfall. Snow accumulations are expected to range between 8 to 14 inches by Friday morning for snow levels between 2,000 and 3,000 feet. Meanwhile, the Northern Rockies will see an additional 3 to 8 inches of snow accumulations generally above 5,000 feet from Thursday evening to Friday evening. Those traveling across these higher terrain areas during the holiday should monitor conditions throughout the day, be prepared for slick and icy roads, and allow extra time for traveling.
In the East, high pressure will build over the eastern half of the nation with dry and calm weather conditions this Thanksgiving. Lower daytime highs after Wednesday's precipitation may lead to slick roads in the Upper Northeast. Temperatures in the Lower 48 states Wednesday ranged from a morning low of 3 degrees at Big Piney, Wyo. to a high of 84 degrees at Fort Lauderdale, Fla.