In the West, late-season storminess persists, providing a boost to reservoirs and streamflows. Nevertheless, spring runoff prospects remain very poor across the Four Corners States.

On the Plains, hot weather continues to accelerate fieldwork and crop development. However, drought remains a concern on the central and southern High Plains, where today’s high temperatures will again approach or exceed 90°F.

In the Corn Belt, cool conditions in the Great Lakes region contrast with milder weather west of the Mississippi River. Showers are exiting the Ohio Valley, while sunny skies prevail elsewhere.

In the South, thunderstorms are clipping northern portions of the region. Warm, dry weather continues across the Southeast, where more precipitation is needed for drought-affected pastures and winter wheat.

Outlook: Pacific moisture will surge inland, generating widespread rain across the central and northern Rockies. This moisture will ultimately interact with a stalled frontal boundary over the central and eastern U.S., producing locally heavy showers and thunderstorms from the northern and central Plains into the Corn Belt and Mid-Atlantic States. South of the front, dry, warm conditions will prevail from the lower Four Corners into the Southeast. Meanwhile, colder-than-normal weather will settle over the northern third of the nation; a hard freeze over the weekend will threaten fruit crops as well as other temperature-sensitive commodities in the Great Lakes region. Out west, dry and increasingly warm weather will return to the Pacific Coast States. The NWS 6- to 10-day outlook for May 1-5 calls for near- to above-normal temperatures nationwide, except for cooler-than-normal conditions in the Pacific Northwest. Meanwhile, above-normal rainfall across the Corn Belt and Pacific Northwest will contrast with drier-than-normal weather across the remainder of the western U.S. and from New England into the Southeast and Delta.