In the West, isolated showers associated with the monsoon circulation stretch from Arizona to Montana. Elsewhere, hot, dry weather favors crop development and fieldwork, including Northwestern small grain harvesting.
On the Plains, isolated showers are confined to Montana. Hot weather across the High Plains and southern Plains is promoting fieldwork but maintaining stress on pastures and immature summer crops. In contrast, favorably cooler weather prevails across eastern portions of the northern and central Plains.
In the Corn Belt, unfavorably dry weather is returning to areas west of the Mississippi River. Meanwhile in the eastern Corn Belt, highly beneficial showers and thunderstorms are providing limited and localized relief to drought-stressed pastures and soybeans.
In the South, scattered showers and thunderstorms continue to benefit pastures and immature summer crops. However, critically dry conditions in the Mid-South contrast with favorably moist conditions from the central Gulf Coast region into parts of the Southeast. On August 5, for example, pastureland rated very poor to poor ranged from 2% in Florida to 99% in Missouri.
Outlook: A cold front currently crossing the Midwest will reach the East on Friday and Saturday. Cool air in the front’s wake will cover much of the eastern half of the U.S. through week’s end. Meanwhile, hot weather will persist in the West, although monsoon-related showers will affect most areas except the Pacific Coast States. Fiveday rainfall totals will generally range from 1 to 3 inches from the lower Great Lakes region into New England, and from the central Gulf Coast into the southern Atlantic States. Little or no precipitation will occur, however, across the nation’s mid-section. The NWS 6- to 10-day outlook for August 14-18 calls for near- to above-normal temperatures nationwide, except for cooler-than-normal conditions from the Pacific Northwest to the northern Rockies. Meanwhile, near- to above-normal rainfall across the majority of the U.S. will contrast with drier-thannormal weather from the southern Plains into the lower Ohio Valley.