* WHAT. For the first Heat Advisory, heat index values up to 108 expected. For the second Heat Advisory, heat index values up to 108 expected. * WHERE. Cherokee, Muskogee, Okfuskee, Adair, Craig, Creek, Delaware, Mayes, Nowata, Okmulgee, Osage, Ottawa, Pawnee, Rogers, Tulsa, Wagoner, Washington OK, Choctaw, Haskell, Latimer, McIntosh, Pittsburg, and Pushmataha Counties. * WHEN. For the first Heat Advisory, from noon today to 9 PM CDT this evening. For the second Heat Advisory, from noon to 9 PM CDT Tuesday. * IMPACTS. Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities.

* WHAT. Heat index values 105 to 110. * WHERE. Portions of northern, central, and southern Oklahoma. * WHEN. For todays Heat Advisory, from 1 PM this afternoon to 9 PM CDT this evening. For Tuesdays Heat Advisory, from noon to 9 PM CDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.