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National Weather Service 

The National Weather Service issued an excessive heat warning Sunday as heat indices peaked between 110-115 degrees in some parts of Northeastern Oklahoma.

In effect from 1 p.m. until 8 p.m., the warning covers the Oklahoma counties of Osage, Washington, Nowata, Craig, Pawnee, Tulsa, Rogers, Mayes, Creek, Okfuskee, Okmulgee, Wagoner, Muskogee, McIntosh, Sequoyah, Haskell, Latimer and LeFlore.

Tulsa’s heat index reached 113 degrees heading by 4 p.m., according to the Oklahoma Mesonet.

Another excessive heat warning is in effect from 1 p.m. to 8 p.m. Monday, when Tulsa could reach 100 degrees, according to the weather service. 

"Maximum heat index values between 110 to 120 degrees are forecast this afternoon and these values will be possible again on Monday afternoon," the warning states. 

The hot temperatures and high humidity create a dangerous situation likely to breed heat-related illnesses, according to the warning.

EMSA issued a heat alert for the Tulsa area Sunday afternoon after medics responded to five suspected heat-related calls.

The agency issues an alert every time medics respond to five or more suspected heat-related illness calls in 24 hours.

EMSA urges residents to plan ahead to stay safe during the heat, including taking enough water for the amount of time you plan to be outdoors and a sufficient amount in case emergencies arise, as well as planning frequent indoor breaks and always having a cell phone on hand, an EMSA news release states.

The agency offered the following tips for staying healthy in the heat:

Prehydration is key to preventing heat-related illnesses. Drink plenty of water or electrolyte replacement drinks several hours prior to and during long exposure to the summer heat.

Wear light-colored, loose-fitting clothing and a wide-brimmed hat if working outdoors, and take plenty of shade breaks.

Consume no alcohol or caffeine.

If you don’t have air conditioning, find a cooling station or public space (such as a library or mall) during the day.

Don’t limit your air conditioning. If you are concerned about your electric bill, call PSO or 211. There are programs that could possibly help you.

Check on elderly neighbors.

Use the buddy system if working outdoors.

Keep a cell phone on you at all times when outdoors, including while walking, running errands, doing yard work or taking part in sports and physical activity.

The following cooling stations are open for business until further notice:

The Salvation Army Center of Hope, 102 N. Denver Ave.; 24/7

John 3:16 Mission, 506 N. Cheyenne Ave.; 24/7

Dennis R. Neill Equality Center, 621 E. Fourth St.; noon–6 p.m.

Tulsa County Social Services, 2401 Charles Page Blvd.; 8:30 a.m.–8 p.m.

Dial 211 for locations, hours and other information. Dial 211 for information on applying for a window unit air conditioner or other resources.

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Kelsy Schlotthauer

918-581-8455

kelsy.schlotthauer@tulsaworld.com

Twitter: @K_Schlott 

Kelsy graduated with a journalism degree from Oklahoma State University in 2018 and moved to Colorado to cover breaking news before The World called her home in 2019. Follow her on Twitter for real-time reports. Phone: (918) 581-8455

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