* WHAT. Dangerously hot conditions with heat index values 110 to 115 expected. * WHERE. Muskogee, Okfuskee, Creek, Nowata, Okmulgee, Osage, Pawnee, Rogers, Tulsa, Wagoner, Washington OK, Haskell, Latimer, McIntosh, and Pittsburg Counties. * WHEN. From noon today to 9 PM CDT this evening. * IMPACTS. The combination of hot temperatures and high humidity will create a dangerous situation in which heat related illnesses are more likely.

* WHAT. Heat index values 105 to 109 expected. * WHERE. In Arkansas, Crawford, Franklin, and Sebastian Counties. In Oklahoma, Sequoyah, Craig, Mayes, Choctaw, Le Flore, and Pushmataha Counties. * WHEN. From noon today to 9 PM CDT this evening. * 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 109 expected. * WHERE. Cherokee and Ottawa Counties. * WHEN. From noon today to 9 PM CDT this evening. * IMPACTS. Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities.

* WHAT. For the first Excessive Heat Warning, dangerously hot conditions with heat index values up to 111. For the second Excessive Heat Warning, dangerously hot conditions with heat index values up to 111 expected. * WHERE. Muskogee, Okfuskee, Creek, Nowata, Okmulgee, Osage, Pawnee, Rogers, Tulsa, Wagoner, Washington OK, Haskell, Latimer, McIntosh, and Pittsburg Counties. * WHEN. For the first Excessive Heat Warning, until 9 PM CDT this evening. For the second Excessive Heat Warning, from noon to 9 PM CDT Tuesday. * IMPACTS. The combination of hot temperatures and high humidity will create a dangerous situation in which heat related illnesses are more likely.

* WHAT. For the first Heat Advisory, heat index values up to 105. For the second Heat Advisory, heat index values up to 108 expected. * WHERE. Cherokee and Ottawa Counties. * WHEN. For the first Heat Advisory, until 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. For the Heat Advisory, heat index values up to 107. For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 110 expected. * WHERE. In Arkansas, Crawford, Franklin, and Sebastian Counties. In Oklahoma, Sequoyah, Craig, Mayes, and Le Flore Counties. * WHEN. For the Heat Advisory, until 9 PM CDT this evening. For the Excessive Heat Warning, from noon to 9 PM CDT Tuesday. * IMPACTS. The combination of hot temperatures and high humidity will create a dangerous situation in which heat related illnesses are more likely.

* WHAT. Heat index values between 105 and 110 expected. * WHERE. Portions of central, east central, northern, southeast, and southern Oklahoma. * WHEN. From noon today to 9 PM CDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.