In the West, cool, showery weather is returning to areas from the Pacific Northwest to the northern Rockies. Elsewhere, warm, dry weather is promoting fieldwork and crop development, although breezy conditions are maintaining the threat of wildfire development and expansion in parts of the Intermountain West.
On the Plains, beneficial rain lingers across southern areas, while isolated showers and thunderstorms are developing farther north. However, agricultural drought persists on the central Plains, where topsoil moisture was rated at least three-quarters very short to short on June 10 in Kansas (76%) and Colorado (75%).
In the Corn Belt, cool, dry weather prevails, except for some showers in the west. Topsoil moisture remains limited across the southern and eastern Corn Belt; on June 10, topsoil moisture rated very short to short was greater than 50% in Missouri (87%), Illinois (78%), Indiana (74%), Nebraska (71%), Iowa (66%), Wisconsin (56%), and Ohio (56%).
In the South, spotty showers linger from Texas to the southern Atlantic Coast. Despite early-week showers, more rain is needed across the drought-affected Mid-South, where corn is beginning to enter reproduction. By June 10, one-fifth (20%) of the corn was silking in Tennessee, compared to the 5-year average of 2%.
Outlook: High pressure building south out of eastern Canada will maintain mostly dry weather across the eastern third of the nation. Showers are likely on the periphery of the high, especially along the Gulf Coast and across the western and northern Corn Belt, where locally heavy rain could fall. A few showers may also dot the Great Plains, particularly in northern locales. Generally dry weather is expected from the Rockies to the Pacific Coast. The NWS 6- to 10-day outlook for June 18-22 calls for cooler-than-normal conditions across the western half of the nation to contrast with near- to above-normal temperatures across most of the eastern U.S., except for central and southern Florida, where below-normal temperatures are expected. Above-normal rainfall is forecast for central and southern Florida as well as the northern Plains and western Corn Belt. Conversely, drier-than-normal weather is anticipated across Texas and New England.