In the West, cool weather lingers across the northern Rockies and northern Intermountain region. Elsewhere, including California and the Southwest, hot, dry weather favors a rapid pace of fieldwork and crop growth.
On the Plains, a low-pressure system is resulting in cool, showery weather in Montana and the Dakotas. By May 26, only 62% of the spring wheat had been planted in North Dakota, and there have been few opportunities for fieldwork in recent days. In contrast, isolated showers are providing only limited relief on the southern High Plains, where drought is severely stressing rangeland, pastures, and rain-fed summer crops.
In the Corn Belt, dry weather favors a limited return to fieldwork. However, cool weather is slowing evaporation rates, while planting activities remain on hold in some of the areas hardest hit by recent rainfall. For example, extensive lowland flooding continues in the middle Mississippi and lower Missouri Valleys, which received more than 4 inches of rain in the last week.
In the South, cooler, drier air is overspreading most areas, but locally heavy showers are occurring in the southern Atlantic States. Flooding is subsiding in the Mid-South, following recent heavy rainfall.
Outlook: A storm system currently centered over the northern Plains will produce additional rain—along with the possibility of severe thunderstorms—across the nation’s mid-section during the next few days. Three-day rainfall totals could reach 1 to 3 inches, with locally higher amounts, across the Plains and upper Midwest. During the second half of the week, unsettled weather will shift into the East, with 1- to 2-inch totals expected along and east of the Appalachians. Significantly higher rainfall totals, 3 to 5 inches or more, may occur across Florida’s peninsula and along the southern Atlantic Coast. Meanwhile west of the Rockies, dry weather will accompany an earlysummer heat wave. In contrast, unusually cool weather will prevail for much of the week across the northern and central Plains and upper Midwest. The NWS 6- to 10-day outlook for June 8-12 calls for below-normal temperatures in most areas from the Plains to the East Coast, while warmer-than-normal weather will prevail in the West. Meanwhile, above-normal precipitation across the eastern half of the U.S. will contrast with drier-thannormal conditions across the southern half of Texas and the West.