TULSA, Oklahoma - The National Weather Service upgraded the heat advisory to an Excessive Heat Warning Friday afternoon.

It says high temperatures ranging in the mid 90s to around 103 degrees will continue Friday afternoon and again Saturday afternoon across eastern Oklahoma and western Arkansas. "The temperatures, combined with high humidity, will create dangerous heat index values in the 105 to 113 degree range. Overnight temperatures will provide little relief from the heat, especially in the more urban areas. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are possible," it says.

Here is a list of cooling stations in Tulsa that are open to the public:

The Salvation Army Center of Hope
102 N. Denver Ave.
Tulsa, OK 74103
24/7

Tulsa County Social Services Cooling station
2401 Charles Page Blvd.
Tulsa OK 74127
8:30 a.m. – 8:00 p.m.

Dennis R. Neill Equality Center
621 East 4th Street
Tulsa, OK 74120
Noon to 9 p.m. 7-days a week

John 3:16 Mission
506 N. Cheyenne
Tulsa, Okla. 74103
24/7