In the West, cool weather prevails. A frost advisory is in effect early today in parts of the northern Great Basin. Precipitation is mainly confined to the Pacific Northwest and the central Rockies, and has changed to snow in some of Colorado’s high-elevation locations.
On the Plains, a flood crest on the South Platte River continues to move farther into Nebraska, having passed North Platte early today. Currently, a chilly rain is falling across the northern half of the Plains, including some areas of Colorado that are still in recovery mode following historic flooding. In contrast, warm, dry weather on the southern Plains is promoting winter wheat planting and summer crop maturation and harvesting.
In the Corn Belt, dry weather accompanies a gradual warming trend. Despite scattered, weekend frost across the northern tier of the Corn Belt, temperatures were not low enough to harm immature corn and soybeans.
In the South, scattered showers linger across southern Georgia and parts of Florida. Elsewhere, a return to mild, dry weather favors summer crop maturation and harvesting. Recent rainfall temporarily slowed fieldwork but provided some drought relief from the western Gulf Coast region into the lower Mississippi Valley.
Outlook: A weak low-pressure system currently over the Gulf of Mexico will help to focus shower activity in parts of the Southeast during the first half of the week. Southeastern rainfall totals will locally exceed an inch, except for some 2- to 4-inch totals in Florida. Farther west, a series of disturbances will cross the northwestern and northcentral U.S., triggering occasional showers that could total 1 to 2 inches. Elsewhere, dry weather will prevail through week’s end in the Northeast and Southwest. Toward week’s end, the coldest air of the season will arrive in the West, while late-season warmth will prevail across the central and eastern U.S. The NWS 6- to 10-day outlook for September 28 – October 2 calls for above-normal temperatures and near- to below-normal precipitation across the majority of the U.S. Near-normal temperatures will be confined to portions of the Southeast, while wetter-thannormal weather will be limited to parts of Texas and scattered areas from the Mississippi Valley into the northern Mid-Atlantic States.