Much cooler air to expand across the Heartland
A powerful, slowing-moving storm system crossing the southern Plains will reach the upper Great Lakes region by Sunday. The storm’s trailing cold front will cross the Atlantic Coast States on Monday. The threat of severe thunderstorms will gradually shift eastward and diminish, although locally heavy rain will persist. Five-day rainfall totals could reach 2 to 5 inches from the southern Plains into the Midwest, while totals could reach 1 to 3 inches as far east as the Appalachians. Only light showers can be expected, however, along the Atlantic Seaboard. Meanwhile, cool air will continue to engulf the central and eastern U.S., with frost possible during the weekend as far south as the central High Plains and across the nation’s northern tier. Elsewhere, emerging warmth across the Pacific Coast States will expand across the Far West during the next few days.
Looking ahead, the 6- to 10-day outlook calls for the likelihood of below-normal temperatures across much of the central and eastern U.S., while warmer-than-normal weather should be limited to the Far West and southern sections of Florida and Texas. Meanwhile, wetter-than-normal weather in the central Rockies and east of a line from the western Gulf Coast region to Lake Erie will contrast with near- to below-normal precipitation across the remainder of the country.
NOAA’s 6- to 10- Day Outlook
NOAA’s 8- to 14- Day Outlook
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