- Associated Press - Wednesday, June 8, 2011

WASHINGTON — The official start of summer is still two weeks away, but much of the nation is sweating through near-record temperatures, with heat advisories and warnings issued across the Northeast, mid-Atlantic and upper Midwest on Wednesday.

Get used to it: A new study from Stanford University offers the latest forecast that global climate change will lead to a permanent shift to unusually hot summers in the coming years.

The National Weather Service predicted temperatures nearing 100 degrees along parts of the East Coast and in the South, and forecasters said it would feel even hotter with high humidity. The ridge of high pressure that brought the heat will remain parked over the area through Thursday.

The deaths of five elderly people in Tennessee, Maryland and Wisconsin have been attributed to high temperatures in recent days, and public schools in Philadelphia and parts of New Jersey cut their school days short Wednesday to limit the amount of time students spent in buildings with no air conditioning.

In downtown Wilmington, Del., Fred McIntyre said the noon lunch hour business at his hot dog stand was slow, but he was hoping the flavored water ice he scoops out of orange plastic coolers would attract attention.

“Once they notice it, they start to come,” said McIntyre, who was doing his best to stay cool himself, mopping his brow with a white shirt and circling his face with a battery-powered green plastic fan.

This could be just the beginning. The six-to-10 day outlook from the federal Climate Prediction Center calls for continued above-average readings centered on the Mid-South, including Louisiana, Mississippi and Alabama, and extending as far as the Great Lakes and New York and New Jersey.

That is likely to continue in the coming month, with the hot weather extending west into New Mexico and Arizona. The three-month outlook shows the center of excessive heat focused on Arizona and extending east along the Gulf Coast, but not north of Georgia. Cooler-than-normal readings are forecast from Tennessee into the Great Lakes states.

At Stanford, Noah S. Diffenbaugh and Martin Scherer analyzed global climate computer models and concluded that by mid-century large areas could face unprecedented heat. The effects are likely to be first felt in the tropics but will extend to parts of the United States, Europe and China, they report in a paper scheduled to be published in the journal Climatic Change Letters.

The Centers for Disease Control and Prevention reports that each year more people in the United States die from extreme heat than from hurricanes, lightning, tornadoes, floods and earthquakes combined.

In the nation’s capital on Wednesday, National Weather Service meteorologist Brandon Peloquin said the high was predicted to be close to the record 98 degrees set in 1999. The normal high this time of year is about 82.

At the National Zoo, visitors took breaks on benches in the shade and kids cooled off however they could.

“Water!” shouted 8-year-old Amanda Squires when she spotted a misting station as she walked with her school group from Beaverdam, Va.

Officials at Fort Jackson in South Carolina, the Army’s largest training installation, were taking precautions Wednesday, allowing recruits to adjust their uniforms to get cooler and spend time in the shade during the hottest part of the day.

“We’re trying to stay out of the heat,” said Christal Leung, 27, a drill sergeant from Beaufort, S.C.

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