Crops continue to bake in searing heat, no relief for weeks

CHICAGO (Reuters) - Extreme heat and drought conditions were set to continue baking already scorched corn and soybean crops in America's breadbasket through early August as weather forecasts provided little hope of relief over the next two weeks.

The drought will cause further damage to crops that already have been nearly decimated in some Midwest areas, an agricultural meteorologist said on Friday. Beginning in the eastern and southern Midwest, the drought has spread to the central and western areas of the region, including the top two corn producing states, Iowa and Illinois.

"It will be dry and very hot in the area with temperatures in the 100s (degrees Fahrenheit) in St. Louis Sunday through Thursday, reaching 106 F on Wednesday," said Don Keeney, meteorologist for MDA EarthSat Weather. The same scenario is expected for much of the central and western Midwest.

Keeney said a little relief from the historic drought was received late this week from rainfall in the northern and eastern Midwest. However, crops in those states, especially corn, had already been significantly damaged.

"There were decent rains yesterday in southern Michigan, Ohio, Kentucky and those should end today. Then another round of rain Monday and Tuesday for the north and east Midwest including eastern Minnesota, Wisconsin, northeast Illinois, central and northern Indiana and Ohio," Keeney said.

Keeney said his weather company would tour U.S. Midwest corn and soybean crops next week and expected to find extremely low yield potential from a broad band stretching from Ohio west to Nebraska.

Meteorologists said an atmospheric high-pressure ridge has mounted over the heart of the U.S. corn and soybean producing states preventing moisture from moving into the crop belt. That has led to a buildup of heat to record highs, exacerbating crop losses from the drought, the worst to affect the U.S. in decades.

Commodity Weather Group (CWG) on Friday said the hot and dry pattern would continue to stress crops in more than half of the Midwest for the next two weeks.

"This week's rain helped ease stress in about one-third of the Midwest, but rains remain focused along north and east edges of the belt during the next 15 days," said CWG meteorologist Joel Widenor.

The U.S. government has been slashing its condition ratings for corn and soybean crops each week and will release an updated weekly crop progress report on Monday.

Crop experts and analysts have been lowering production estimates for corn and soybeans on an almost hourly basis, leading up to what will be a historic government monthly crop report on August 10.

Chicago Board of Trade (CBOT) corn prices have soared 50 percent in just six weeks to a record high $8.16-3/4 per bushel late this week, surpassing the previous record of $7.99-3/4 set 13 months ago.

CBOT soybeans notched record highs for three days in a row reaching a peak of $17.77-3/4 per bushel on Friday, above the previous record on Thursday of $17.49 and more than 30 percent higher than early in June.

U.S. government's National Oceanic and Atmospheric Administration (NOAA) on Thursday issued a forecast that showed no relief from the drought for at least the rest of this summer.

The National Oceanic and Atmospheric Administration (NOAA) said in a report on Monday that, based on the Palmer Drought Index, 55 percent of the contiguous United States was under moderate to extreme drought in June. That is the largest land area in the United States to be affected by a drought since December 1956.

(Editing by Bernadette Baum)

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