Heat wave over much of central US continues

Heat wave over much of central US continues

17 July 2011

published by www.enn.com

USA — Fiery reds and oranges nearly covered the United States on meteorologist maps as a massive heat wave hit hard in much of the country on Saturday.

Temperatures averaged up to 15 degrees above normal, with most peaks in the 90s but triple digit heat expected to strike from Montana to New Mexico, according to lead meteorologists for The Weather Channel and The National Weather Service.

Paired with oppressive humidity, temperatures will feel even hotter, as measured by the heat indexes.

The NWS issued excessive heat warnings and watches for the Midwest from Texas to Canada, and heat index values over 110 degrees Fahrenheit (43 C) are possible for portions of the central and eastern United States by the middle of next week.

Locations affected are expected to see temperatures and heat indexes of up to 117 degrees (47 C), including cities like Minneapolis where that is extremely rare.

“The stage is being set for a massive heat wave to develop,” the National Weather service warned on Thursday.

“When your body temperatures rises on a hot day, as much as two liters of sweat can pour out of … sweat glands each hour,” said Weather Channel Senior Meteorologist Jonathan Erdman, meaning your body has a harder time keeping cool.

Meteorologists predict the heat wave will hang on through as late as Friday of next week. Following record heat that has already blasted the country from early June, the prolonged high temperatures pose special dangers to children and the elderly and economic pain to farmers and ranchers.

While the year is entering its hottest time — the latter half of July — an exceptional drought is exacerbating summer heat that has broken daily, monthly and all-time record highs over the last couple of months.

The U.S. Department of Agriculture said on Friday that drought and wildfires through spring and early summer have affected millions of acres of cropland, forests and grasslands across the United States.

In a statement directed to farmers and ranchers in states affected by extreme weather, the USDA said drought conditions stretch from Arizona to the southern Atlantic states.

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