Heat Advisory

* WHAT...For the Extreme Heat Warning Sunday, dangerously hot conditions with heat index values up to 114 expected. For the Heat Advisory Monday, heat index values up to 110 expected.

* WHERE...Okfuskee, Creek, Northeast Osage, Ottawa, Pawnee, Southeast Osage, and Western Osage Counties.

* WHEN...For the Extreme Heat Warning Sunday, until 8 PM CDT this evening. For the Heat Advisory Monday, from noon to 8 PM CDT.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities.