In the West, a few showers linger across California, while widespread rain and snow showers are affecting the Great Basin and the Intermountain region. Crop development and fieldwork activities are being delayed by cool damp conditions, especially in California and the Northwest.
On the Plains, a narrow band of rain stretches from eastern Montana to northeastern Oklahoma. Dry conditions persist, however, on the southern High Plains, where wildfires remain a threat.
In the Corn Belt, cool weather and pesky clouds and showers linger from Wisconsin and Illinois eastward. Meanwhile, planting activities continue in the western Corn Belt, although rain showers are edging into eastern Nebraska.
In the South, cool, mostly dry weather favors fieldwork. Early today, the Mississippi River crest is between Greenville and Vicksburg, Mississippi. The river at Vicksburg is more than 14 feet above flood stage, at a record-high level, and rising. Water diversions from the Mississippi River continue in Louisiana, using the Bonnet Carré Spillway (94% open) and the Morganza Floodway (12% open).
Outlook: A slow-moving storm will drift northward along the Atlantic Seaboard, exiting the East Coast by Saturday. Additional rainfall could total 1 to 2 inches from the northern Mid-Atlantic States into southern New England. Meanwhile, a low-pressure system over the Intermountain West will lift northeastward, reaching the northern Plains and the upper Midwest during the weekend. Rainfall totals of 2 to 4 inches may occur across the nation’s mid-section, excluding the drought-parched southern High Plains. Cool weather will linger in the West, but warmth will gradually return to the eastern half of the U.S. The NWS 6- to 10-day outlook for May 23-27 calls for warmer-than-normal weather across the South, East, and lower Midwest, while near- to below-normal temperatures will prevail north and west of a line from the southern High Plains to Wisconsin. Meanwhile, above-normal precipitation from the Northwest to the Midwest will contrast with drier-than-normal conditions across the nation’s southern tier.