Expected

* WHAT...Dangerously hot conditions with heat index values up to 115. * WHERE...Portions of central, north central, southeast, southwest, and western Arkansas. * WHEN...Until 9 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car

* WHAT...For the Heat Advisory, heat index values of 100 to 106. For the Extreme Heat Warning, dangerously hot conditions with heat index values of 110 to 116. * WHERE...Portions of southern Illinois, western Kentucky, and southeast Missouri. * WHEN...For the Heat Advisory, until 11 AM CDT Tuesday. For the Extreme Heat Warning, from 11 AM to 7 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high

* WHAT...Dangerously hot conditions with heat index values of 110 to 116 expected. * WHERE...In Illinois, White County. In Indiana, Posey, Spencer, Vanderburgh, and Warrick Counties. In Kentucky, Daviess, Henderson, and McLean Counties. * WHEN...From 11 AM to 7 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with heat index values from 110 to 115 expected. * WHERE...Cherokee and Northern Sequoyah Counties. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with heat index values from 110 to 115 expected. * WHERE...Portions of west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with heat index values from 110 to 115 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with air temperatures of 105 to 108 degrees and heat index values up to 115 expected. * WHERE...Portions of central, east central, northern, northwest, and southeast Oklahoma. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with air temperatures of 105 to 108 degrees and heat index values up to 112 expected. * WHERE...McClain, Johnston, Marshall, Carter, Garvin, Love, and Murray Counties. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with heat index values near 110 to 115 expected. * WHERE...Portions of south central and southwest Arkansas, north central and northwest Louisiana, southeast Oklahoma, and northeast Texas. * WHEN...From 10 AM to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

...The upper level low over the region will shift to the east just enough to allow for monsoonal moisture to move into the region. Instability will accompany the moisture and allow for increased chances of thunderstorms across central Oregon and the eastern mountains. Isolated dry thunderstorms could spark new wildfires and gusty outflow winds can affect fires already on the landscape... * AFFECTED AREA...Fire Weather Zones 698 Southern Blue