Weather
An early Autumn-like feel to cover the Heartland
The season’s first significant push of cold air will continue to overspread areas east of the Rockies. The center of the high-pressure system will move into Montana on Thursday, settle across the north-central U.S. on Friday, and reach the upper Mississippi Valley by Saturday morning. Widespread freezes can be expected on the northern High Plains on September 11-12, while frost and scattered freezes will affect the upper Midwest on September 12-13. At this time, a widespread, growing season-ending freeze is not expected in the Midwest. In advance of the cold wave, additional rainfall could reach 1 to 2 inches or more from the southern Plains into the Great Lakes region. Similar rainfall amounts can be expected in the Southeast, where rain will linger into the weekend. Elsewhere, heat will build across the Pacific Coast States and spread across other areas of the West during the weekend.
Looking ahead, the 6- to 10-day outlook calls for near- to below-normal temperatures across the eastern two-thirds of the U.S., except for warm weather across Florida and southern Texas. Warmer-than-normal weather will also cover the northern High Plains and much of the West. Meanwhile, below-normal precipitation from the northern Rockies into the Midwest and Mid-South will contrast with wetter-than-normal.
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