The Weather Front On-Line (September 2018)

The Weather Front On-Line (September 2018)

A changing pattern for much of the Heartland

Across the Corn Belt, rain is maintaining the threat of flooding in the Ohio Valley, but dry weather covers the remainder of the Midwest. The dry weather is especially beneficial in the upper Midwest, where last week’s heavy rain induced lowland flooding and halted early-season harvest efforts.

A change in weather well-underway

Across the Corn Belt, cool, breezy weather prevails. Significant lowland flooding persists in parts of the upper Midwest, particularly in northwestern Iowa and environs, following recent downpours.

A more active pattern for the Corn Belt

Across the Corn Belt, showers and thunderstorms are affecting the upper Midwest. Cooler air is arriving across the northern Corn Belt, but late-season warmth across the remainder of the Midwest continues to promote corn and soybean maturation. More than half (54%) of the U.S. corn crop was fully mature by September 16, compared to the 5-year average of 36%.

Near-ideal weather for now; wetter days ahead

Across the Corn Belt, warm, dry weather is ideal for corn and soybean maturation and early harvest efforts, although showers are creeping into the western Corn Belt. As of September 16, Midwestern corn was rated more than 70 percent good to excellent in every state except for Missouri (29 percent) and Michigan (51 percent).

Ideal early-harvest weather across the Midwest

Across the Corn Belt, warm, dry weather is ideal for corn and soybean maturation and early-season harvest efforts, although rain associated with Tropical Depression Florence is falling in the eastern Ohio Valley.

Favorable weather for early-harvest in some locales

Across the Corn Belt, warm, dry weather is ideal for corn and soybean maturation and early-season harvest efforts. On September 9, Missouri led the Midwest with 12% of its corn harvested.

Dry weather to continue across the Midwest

Across the Corn Belt, favorably dry weather prevails, although lowland flooding persists in parts of the Mississippi and Ohio Valleys. Warmth is returning across the upper Midwest, helping to dry out still-soggy fields.

Warmer, drier weather to return in the new week

Across the Corn Belt, lowland flooding persists in parts of the upper Midwest, despite a return of dry weather. Rain continues, however, along and south of a line from southern Iowa to northern Ohio. On September 2, topsoil moisture was rated at least one-fifth surplus in Wisconsin (37%), Michigan (26%), and Iowa (21%).

A much wetter pattern by week's end

Across the Corn Belt, locally heavy showers and thunderstorms in the upper Midwest are resulting in a heightened risk of flash flooding and maintaining high water levels along many streams and rivers. Meanwhile in the eastern Corn Belt, a late-season heat wave in hastening summer crop maturation. Nearly one-quarter (22%) of the U.S.