USDA's Joint Ag Weather Facility says in the Corn Belt, dry weather is returning to the western half of the region, following the latest round of rain. "However, lowland flooding has largely subsided in the Midwest, except along the main-stem Mississippi River and a few tributaries, including the Illinois River," USDA reports. Meanwhile, USDA says rain is shifting into the eastern Corn Belt, where weather in recent days has been mostly open for nearing completion of corn and soybean planting.
In the West, USDA says cooler air is arriving along and near the Pacific Coast. "However, record-setting heat prevails across the Rockies and Intermountain West," USDA adds. In addition, USDA explains an enhanced risk of wildfire activity exists in portions of the Great Basin and the Southwest.
On the Plains, USDA says hot, dry weather prevails, except for cool conditions and isolated showers along the Canadian border. "Today’s high temperatures will exceed 100°F as far north as the central High Plains," USDA elaborates. Despite last week’s showers, drought remains a threat to the health of rangeland, pastures, and rain-fed summer crops on the southern High Plains, according to USDA.
In the South, USDA says humid, showery weather is halting fieldwork, especially in areas—mainly from the southern Appalachians eastward—soaked by last week’s interaction between a cold front and Tropical Storm Andrea. "Meanwhile, drier air is pushing into the western and central Gulf Coast states and the Mid-South," USDA details.
In its outlook, USDA says heat that has been affecting the West and has recently reached the Plains will expand into the Southeast. "Cooler air will gradually overspread the West, but hot conditions will persist through week’s end on the High Plains," USDA explains. Meanwhile, USDA says showery, unsettled weather across the northern half of the U.S. could result in 1- to 3-inch rainfall totals from the northern Plains into the East. Early-week downpours could result in flash flooding in parts of the East, USDA explains. "In contrast, mostly dry weather will prevail through week’s end from California into the south-central U.S.," USDA continues.