A potent Pacific storm is bringing a wet and wintry start to the week for the western U.S., with Southern California and the Southern Rockies facing the risk of flash flooding. Heavy snow is piling up in the Sierra Nevada and will shift to the Northern Rockies by Wednesday. As the week continues, the storm moves east, bringing widespread rain to the Plains, Mid-South, and eventually the East Coast. Meanwhile, another storm system is set to push into the Pacific Northwest by late weekend, keeping the unsettled weather going into next week. Tropical Storm Lorenzo remains out in the Atlantic with no expected U.S. impact. Across Canada, heavy western moisture, including snow in the mountains. Elsewhere, semi-heavy moisture will move across the central and eastern Prairies toward Ontario. Also, widespread frost and freezing temperatures are possible for all provinces.
Read More
January is closing out with no shortage of winter weather. Frigid temperatures will dominate the eastern U.S. for the rest of the week as another round of arctic air spills southward starting Friday. The cold could break more records as far south as Florida. Meanwhile, forecasters are closely tracking a potentially significant East Coast winter storm this weekend that could bring heavy snow, strong winds, and coastal flooding from the Carolinas to New England. Out West, a soggy pattern continues in the Pacific Northwest, with rounds of rain and mountain snow.