Weather report: Cooler air spreads across the northern Plains

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In the West, monsoon moisture is flowing northward through the southern and central Rockies, generating scattered showers and aiding wildfire containment efforts. Warm air is arriving in the Northwest, signaling the onset of a significant weather pattern change.

On the Plains, cooler air is overspreading northern areas, preceded and accompanied by widespread thunderstorms in the Dakotas. Excessively hot weather persists for a final day across the central Plains, while unfavorably dry conditions continue on the southern Plains.

In the Corn Belt, a large thunderstorm cluster is crossing the Dakotas, providing much-needed moisture for corn, soybeans, and spring-sown small grains. Slightly cooler weather is overspreading the upper Midwest, but record-setting heat continues to take a severe toll on reproductive corn and soybeans elsewhere in the Corn Belt.

In the South, hot weather continues to promote a rapid pace of crop development. Drought is adversely affecting rain-fed summer crops in several areas, including the Mid-South, while scattered showers are providing beneficial moisture in parts of the Southeast.

Outlook: Substantially cooler air will overspread the Plains and the Midwest during the weekend. By early next week, near- to below-normal temperatures will cover all areas east of the Rockies, except for a return to hot weather on the northern High Plains. Meanwhile, heat will quickly build west of the Rockies, with record-high temperatures possible in parts of the Northwest. During the next 5 days, rainfall will be focused in two primary areas: the Southeast (as much as 2 to 4 inches) and the central and southern Rockies (locally 1 to 4 inches). Early in the period, rain (locally 1 to 2 inches) will also affect parts of the upper Midwest, but only light showers can be expected across the remainder of the Corn Belt. The NWS 6- to 10-day outlook for July 11-15 calls for near- to above-normal temperatures nationwide, except for cooler-than-normal weather from the southern Rockies into the lower Southeast. Meanwhile, above-normal rainfall in the Four Corners region and the Gulf and Atlantic Coast States will contrast with drier-than-normal conditions in the Midwest and parts of the Northwest.



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