The week starts chilly, and a quick-moving Clipper system tonight into tomorrow morning will deliver fresh snow to New England. Danielle has all the details…plus read on for the National & Northeast Weather Summary.
National Weather Summary
A complex weather setup unfolds across the United States as several systems impact various regions. The West Coast faces yet another surge of precipitation as a progressive atmospheric river brings heavy rain to northern California and the Pacific Northwest. Coastal areas and lower elevations are at risk for flooding, while the higher terrain of the Sierra Nevada and Cascades braces for heavy mountain snow. Snow levels remain high but will gradually lower as colder air filters in behind the front.
Across the central U.S., a southern-stream shortwave brings scattered thunderstorms to parts of the southern Plains, with locally heavy rainfall possible from east Texas into Arkansas. Meanwhile, the central and northern Plains experience colder air and light snow as a clipper system races eastward.
In the Northeast, a departing cold high-pressure system gives way to an approaching clipper system from the Great Lakes. This setup brings a period of light snow and mixed precipitation, primarily to interior areas, potentially leading to minor accumulations. Elsewhere, a strong ridge keeps conditions mild and tranquil for much of the Southeast and Gulf Coast, with temperatures well above seasonal averages.
Northeast Weather Story
A weakening Arctic high-pressure system starts the day, delivering frigid morning temperatures across New England, with single digits and subzero readings in sheltered valleys. As the high shifts offshore, milder air flows into the region ahead of an approaching clipper system. Clouds will thicken during the day, and light snow will spread from west to east by the evening hours.
Snowfall will generally range from 1-3 inches across much of upstate New York and interior New England. Higher amounts of 3-6 inches are possible in the Adirondacks, the Green Mountains, and the higher terrain of New Hampshire and Maine, where winter weather advisories are in effect. Snow will mix with or transition to rain near the coast late in the evening as slightly warmer air moves in. Roads will likely become slippery, especially in interior areas during the evening commute.
Behind the clipper, cold northwest winds will return late Thursday night into Friday, bringing scattered snow showers and reinforcing the wintry feel across the region. Temperatures on Friday will remain seasonably cold, with highs in the 20s and 30s, but quieter weather returns just in time for the weekend.