The Weather Front On-Line (July 2012)

Critical topsoil moisture shortages across most of the Corn Belt

Across the Corn Belt, highly beneficial showers are affecting eastern areas, including northern Indiana. However, critical moisture shortages persist in most states, with Illinois reporting topsoil moisture 100% very short to short on July 29. Not far behind are Missouri (99%), Nebraska (96%), Iowa (96%), and Indiana (92%).


"Cooler" air covers the Corn Belt

Across the Corn Belt, isolated showers are mainly confined to the Great Lakes region.


A gradual change in weather underway across the Midwest

Across the Corn Belt, hot weather persists in the Ohio Valley, but cool air covers the upper Midwest. Thunderstorms in the vicinity of a cold front stretch from the lower Great Lakes region into the middle Mississippi Valley.


Improved rainfall prospects for parts of the Corn Belt

Across the Corn Belt, a band of widely scattered but highly beneficial showers stretches from South Dakota into northern Ohio. However, unfavorably hot conditions persist in much of the Midwest. Monday’s maximum temperatures will again approach, reach, or exceed 100° in the southwestern Corn Belt.

On the Plains, favorably cooler weather prevails in the Dakotas.


Heat wave on the Plains to again spread eastward

Across the Corn Belt, favorably cooler weather prevails, although heat lingers across westernmost areas. In Fort Wayne, Indiana, a record-setting streak of highs of 90° or greater has ended at 22 consecutive days (June 27 –July 18).


Blazing heat throughout much of the Heartland

Across the Corn Belt, devastatingly hot, dry conditions persist in most areas, although showers and thunderstorms are spreading across the far upper Midwest (e.g. the Dakotas). On July 15, at least 80% of the topsoil moisture was rated very short to short in all Midwestern States except Minnesota (53% very short to short) and North Dakota (62%).


Drought continues to tighten its grip

The very hot weather which occurred over the last 2 weeks further dried out the ground across much of central and southeast Illinois, even in those areas that managed to receive rainfall. 

According to the U.S.


Midwestern drought expanding, intensifying

Across the Corn Belt, showers are confined to the far upper Midwest, including the eastern Dakotas.


A cool-off overspreads the Midwest

Substantially cooler air will overspread the Plains and the Midwest during the weekend.

By early next week, near- to below-normal temperatures will cover all areas east of the Rockies, except for a return to hot weather on the northern High Plains.


A big change in weather ahead

Across the Corn Belt, showers and thunderstorms are rolling across the northern edge of a ridge of high pressure that continues to produce crop-damaging heat. On the 4th of July, high temperatures reached or exceeded 100° across the majority of the Corn Belt, severely stressing reproductive corn and soybeans.


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