Isaac Provides Inches of Rain for the Corn Belt

August 31, 2012 10:12 AM

Isaac’s remnant circulation will drift northward into the middle Mississippi Valley by Saturday, then turn eastward across the lower Midwest during the weekend, according to the USDA's Joint Ag Weather Facility. Additional rainfall from the Mid-South into the eastern Corn Belt could reach 2 to 6 inches, with locally higher amounts.


Farther south, lowland flooding will begin to subside during the Labor Day weekend in the central Gulf Coast region, where some locations have received as much as 10 to 20 inches of rain. Elsewhere, a late-season warm spell will continue across much of the country, while scattered showers will generally be confined to a broad area stretching from the Southwest and Intermountain West into the upper Midwest.

The NWS 6- to 10-day outlook for September 5-9 calls for near- to above-normal temperatures nationwide, except or cooler-than-normal conditions in the Midwest and along the Pacific Coast. Meanwhile, near- to above-normal rainfall across the majority of the U.S. will contrast with drier-than-normal weather across the western Gulf Coast region, the northern High Plains, and much of the West.

In the West, isolated showers dot the Intermountain region, while cool conditions prevail along the Pacific Coast. Elsewhere, warm, dry weather favors crop maturation and late-summer fieldwork.

On the Plains, mostly dry weather accompanies a late-season heat wave. The hot, dry weather is promoting fieldwork, including winter wheat planting preparations, but maintaining stress on pastures and rangeland.

In the Corn Belt, rainfall associated with Tropical Depression Isaac is spreading into the middle Mississippi and lower Ohio Valleys. The rain is too late to help nearly all summer crops, except late-developing soybeans. However, the rain is highly beneficial for drought-stricken pastures and in preparation for winter wheat planting.

In the South, Tropical Depression Isaac continues to produce heavy rain. At 4 a.m. CDT, Isaac was centered about 95 miles west of Little Rock, Arkansas, moving toward the north-northwest at 12 mph. Sustained winds have diminished to 25 mph. Most of Isaac’s heavy rain is falling across Arkansas, southern Missouri, and western Mississippi, although a few downpours linger across Louisiana. In addition, extensive lowland flooding persists in the central Gulf Coast region, including southern Mississippi and southeastern Louisiana.




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