The temperature in Tulsa is forecast to break triple digits Thursday, with the heat index reaching up to 101 degrees.
Wednesday's air temperature peaked at 96 degrees, and the heat index broke into the triple digits, according to the National Weather Service in Tulsa.
Emergency medical personnel responded to 11 heat-related illness calls in the Tulsa area on Wednesday, according to an EMSA news release.
Heat indices throughout eastern Oklahoma are expected to range on Thursday from 100 to 105 degrees. The McAlester and Bartlesville areas are forecast to reach heat indices near 99 degrees.
Coupled with the elevated risks of dangerous heat are limited risks of severe thunderstorms for Thursday in far eastern Oklahoma, according to the weather service.
Weather service staff and EMSA personnel encourage area residents to stay hydrated and seek shade when outdoors.
"Plan the amount of time you think you will be outdoors and take appropriate amounts of water or other fluids with you, even if just planning for a short amount of outdoor time," EMSA spokesman Adam Paluka said in a news release.
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