Heat, humidity to expand (again) across most of the Corn Belt
Across the Corn Belt, a surge of heat is bringing renewed stress to corn and soybeans, especially in areas that have been trending dry in recent weeks. Meanwhile, thunderstorms are crossing the far upper Midwest, including the eastern Dakotas and central Minnesota.
On the Plains, intense heat and devastating drought conditions persist across the southern half of the region. Meanwhile, thunderstorms are gradually exiting the northern Plains.
In the South, showers and thunderstorms are mostly confined to northern Florida. Elsewhere, unfavorably hot weather is maintaining heavy irrigation demands and stressing rain-fed crops.
In the West, an active monsoon circulation continues to produce scattered showers, primarily from Arizona to the northern Intermountain region. Cool, dry weather prevails along and near the Pacific Coast.
During the next 5 days, the Southwestern monsoon circulation will continue to interact with disturbances crossing the northern U.S. As a result, rainfall totals could reach 1 to 3 inches, with locally higher amounts, in the Four Corners States and from the northern half of the Plains into the Midwest and Northeast.
Scattered showers will also continue to affect the Southeast. However, extremely hot, mostly dry weather will persist across the south-central U.S. and return to the Southeast.
By week’s end, a developing tropical system (likely to become Tropical Storm Emily) currently centered east of Martinique may approach the southeastern U.S.
Looking ahead, the 6- to 10-day outlook calls for below-normal temperatures in the Pacific Coast States and northern New England, while hotter-than-normal weather will prevail from the central and southern Plains into parts of the Southeast. Meanwhile, near- to below-normal rainfall across the majority of the U.S. will contrast with wetter-than-normal conditions in southeastern Arizona and in some locations from the northern Plains into the Northeast.