USDA's Joint Ag Weather Facility says in the Corn Belt, rain is ending across the upper Midwest, where summer crops are benefiting from recent soil moisture improvements. "Meanwhile across the southern and eastern Corn Belt, building heat and diminishing soil moisture reserves are increasing stress on pastures, winter wheat, corn and soybeans," USDA explains.
In the West, USDA reports dry, windy conditions are maintaining concerns about additional wildfire activity in the southern Great Basin and the Four Corners states. "Meanwhile, unusually cool weather is slowing crop development in California and the Northwest," USDA adds. Scattered rain and snow showers dot the northern Intermountain West, USDA reports.
On the Plains, USDA says cool weather follows a period of beneficial showers across northern portions of the region. "Meanwhile on the southern High Plains, hot, dry weather is promoting early-season winter wheat harvesting but stressing pastures, rangeland and rain-fed summer crops," according to USDA.
In the South, USDA explains a tropical disturbance is producing locally heavy showers in the vicinity of the central Atlantic Coast. "Elsewhere, hot, dry weather is promoting rapid crop development, although drought is adversely affecting pastures and summer crops in the Mid-South and lower Southeast," USDA reports.
USDA's outlook says a developing storm system over the Intermountain West will bring a late-week return to rainy weather across the northern Plains and the upper Midwest. "The storm’s center will slowly cross the northern Plains during the Memorial Day weekend; total rainfall could reach 2 to 4 inches in the upper Midwest and 1 to 2 inches on the northern Plains," USDA reports. In the storm’s wake, USDA reports frost is possible early next week on the northern High Plains. In stark contrast, USDA explains a holiday weekend heat wave will affect much of the South, East, and lower Midwest, with multiple days of 90-degree heat expected in many locations. "Elsewhere during the weekend, a critical risk of wildfire development and expansion will persist in the Southwest, while a tropical disturbance may develop and lurk near the southern Atlantic Coast," according to USDA.