June 24, 2009 01:44 pm
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OKLAHOMA CITY (AP) — Blistering heat is blanketing Oklahoma, with temperatures heading toward triple digits for the second straight day.
The National Weather Service issued an excessive heat warning Wednesday for 19 counties in northeast Oklahoma where heat index readings were well over 100 degrees before noon. The heat index measures temperature and humidity to determine how hot it feels to the human body.
The Department of Environmental Quality on Wednesday also issued an ozone alert, warning people sensitive to air quality to avoid long stretches outdoors.
Weather service meteorologist Ty Judd says a ridge of high-pressure centered over Oklahoma should keep temperatures in the upper 90s and lower 100s for the next several days.
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