Expected

* 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

* WHAT...Dangerously hot conditions with heat index values up to 116. * WHERE...Portions of East Arkansas, North Mississippi, and Southeast Missouri. * 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. Take extra precautions when outside. Wear lightweight and loose

* WHAT...Dangerously hot conditions with heat index values up to 115. * WHERE...Portions of North Mississippi and West Tennessee. * 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning

...The National Weather Service in Midland/Odessa has issued a Flood Warning for the following rivers in Texas... Rio Grande at Johnson Ranch near Castolon, Texas affecting Brewster County. For the Rio Grande...at Johnson Ranch near Castolon, Texas...minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Rio Grande at Johnson Ranch near Castolon, Texas. * WHEN...Until Tuesday morning. * IMPACTS...At 12.0 feet, the river reaches bankfull, minor lowland flooding occurs, and no significant damage is expected. At 15.0

* WHAT...For the Heat Advisory, heat index values up to 110F degrees during the daytime, with limited heat relief overnight. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 115F degrees, with limited heat relief overnight. * WHERE...Portions of northeast Louisiana and central, southwest, and west central Mississippi. * WHEN...For the Heat Advisory, until 10 AM CDT Tuesday. For the Extreme Heat Warning, from 10 AM to 9 PM CDT Tuesday.

* WHAT...For the Heat Advisory, heat index values up to 110F degrees during the daytime, with limited heat relief overnight. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 115F degrees, with limited heat relief overnight. * WHERE...Portions of southeast Arkansas, northeast Louisiana, and north central Mississippi. * WHEN...For the Heat Advisory, until 10 AM CDT Tuesday. For the Extreme Heat Warning, from 10 AM to 9 PM CDT Tuesday.

* WHAT...Dangerously hot conditions with heat index values up to 115F degrees, with limited heat relief overnight. * WHERE...Portions of southeast Arkansas and central, north central, and northwest Mississippi. * 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.

* WHAT...For the Heat Advisory, heat index values up to 97. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 113 expected. * WHERE...Portions of northeast Louisiana and southwest Mississippi. * WHEN...For the Heat Advisory, until 10 AM CDT Tuesday. For the Extreme Heat Warning, from 10 AM to 9 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.