* WHAT...Heat index values to around 105 degrees are expected this afternoon and Monday afternoon.
* WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma.
* WHEN...A Heat Advisory is in effect until 8 PM CDT this evening and from 1 PM to 8 PM CDT Monday.
* IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities.