Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 228 PM EST Tue Jan 25 2022 Valid 00Z Wed Jan 26 2022 - 00Z Fri Jan 28 2022 ...Snow will diminish across the central High Plains tonight, while lingering over the Southern Rockies/High Plains into early Wednesday... ...Arctic air to overtake much of the eastern U.S. through Thursday... A potent upper level low swinging through the Southern Rockies tonight will continue to focus the chance for moderate-to-heavy snow across parts of the region, while also extending into the central and southern High Plains. Much of the snowfall should end across the central High Plains this evening as the precipitation gradually shifts southward overnight. An additional 2-4 inches of snow are possible just east of the Rockies, with snowfall accumulations of 4 to 8 inches possible in the higher terrain of northern New Mexico and southern Colorado. Winter Storm Warnings and Winter Weather Advisories remain in effect for areas most likely to see potentially dangerous travel conditions. A few snow showers associated with this system will attempt to cross through parts of northern Texas and central Oklahoma on Wednesday, with little accumulation expected. Elsewhere, showers and isolated thunderstorms will be found across the Florida Peninsula tonight and Wednesday as an area of low pressure crosses the Sunshine State. Farther north, a pair of cold fronts are expected to enter the Northern Tier by Wednesday evening and spread snow showers across the Northern Plains and Great Lakes into Thursday. For the West, dry and mostly quite weather is anticipated. Outside of the Southeast, much of the eastern U.S. is in for a deep arctic chill through Thursday. The coldest temperatures are expected from the Upper Midwest to the Northeast on Wednesday morning, with widespread lows below zero. Subfreezing low temperatures will also make it as far south as central Louisiana. Gusty winds will make it feel even colder in most spots. Thus, Wind Chill Warnings and Advisories stretch from the Northern Plains to parts of the Midwest, where wind chills could drop as low as 40 below zero. By Thursday morning, the brunt of the cold air will shift into the Northeast and Mid-Atlantic. Lows will once again drop below zero from the central Appalachians to New England. Snell Graphics are available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php