The Weather Front On-Line

The Weather Front On-Line

Summer-like pattern across much of the Heartland

Across the Corn Belt, showers and thunderstorms are overspreading the upper Midwest, where corn and soybean planting has advanced quickly in recent days but remains mostly behind schedule. On May 20, corn planting was at least 10 percentage points behind the respective state averages in South Dakota (66% planted), Wisconsin (56% planted), and Michigan (50% planted).

Very warm weather to expand across the Corn Belt

Across the Corn Belt, warmth favors a rapid pace of corn and soybean emergence and early-season growth. During the week ending May 20, more than one-third of the intended corn acreage was planted in South Dakota (advancing from 21 to 66% planted) and Minnesota (from 40 to 77%).

Weather pattern largely favors Summer crop growth

Across the Corn Belt, corn and soybean planting activities, as well as summer crop emergence and growth, continue in many areas under a warm, dry regime. However, locally heavy showers are spreading across the middle Mississippi Valley and developing in the westernmost Corn Belt.

Warm weather to continue across the Midwest

Across the Corn Belt, weather conditions remain mostly favorable for fieldwork, although cooler air had edged into the Great Lakes region. However, dryness is a concern in parts of the southwestern Corn Belt, despite a few showers in recent days. On May 13, topsoil moisture in Missouri was rated 46% very short to short.

Planting progress improves across the upper Midwest

Across the Corn Belt, warm, dry weather across the upper Midwest is helping producers make significant progress in areas where planting has been significantly delayed. On May 13 in Minnesota, planting progress for both corn (40% complete) and soybeans (11% complete) was at least 25 percentage points behind the 5-year averages.

Planting progress improves across the Midwest

Across the Corn Belt, a broken line of showers stretches from Michigan to Missouri. The rain is slowing a previously rapid fieldwork pace, but is benefiting recently emerged corn and soybeans. In Illinois, soybeans were 66% planted and 24% emerged by May 13, compared to the respective 5-year averages of 24 and 6%.

A wide gap of planting progress across the Corn Belt

Across the Corn Belt, cold, rainy weather is maintaining a sluggish fieldwork pace across the upper Midwest. This is further widening the gap between planting progress in northern corn and soybean production areas and the southern Corn Belt, where warm, dry weather prevails.

A contrast of soil moisture across the Corn Belt

Across the Corn Belt, rain is maintaining a slow pace of planting progress in parts of the upper Midwest. In contrast, dryness has begun to develop in the southwestern Corn Belt, where topsoil moisture was rated at least one-quarter very short to short on May 6 in Missouri (27%) and Nebraska (25%).

Warmer, but wetter days ahead for the Midwest

Across the Corn Belt, dry weather favors spring fieldwork, including corn and soybean planting. Some planting delays persist, however, in upper Midwestern areas—mainly in parts of Iowa and southern Wisconsin—that received at least 2 to 4 inches of rain last week.