Moderate

* WHAT...Heat index values up to 110 are expected. * WHERE...Portions of southeast Arkansas, northeast Louisiana, and central, east central, north central, northeast, northwest, south central, southeast, southwest, and west central Mississippi. * WHEN...From noon to 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Heat index values up to 106 expected. * WHERE...Union County. * WHEN...From 11 AM to 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 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 interiors will reach lethal temperatures in a matter of minutes.

At 755 PM MDT, Doppler radar was tracking a strong thunderstorm 34 miles northwest of Ekalaka, or 27 miles west of Baker, moving east at 20 mph. HAZARD...Wind gusts up to 50 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Westmore. If outdoors, consider seeking shelter inside a building.

* WHAT...Heat index values 100 to 105 on Thursday. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...Until 9 PM CDT /10 PM EDT/ Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 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

At 758 PM MDT, Doppler radar was tracking a line of showers extending from near Yellow Bear Canyon to 12 miles south of Swett, or extending from 18 miles northwest of Martin to 14 miles southwest of Martin, moving east at 30 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Martin, Wanblee, Allen, Tuthill, LaCreek North Housing, Sunrise

* WHAT...Heat index values of 105 to 108 degrees expected. * WHERE...Portions of northeast North Carolina and central, east central, north central, south central, and southeast Virginia. * WHEN...Until 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the mid 70s will not provide much relief from hot daytime temperatures. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Heat index values of 105 to 108 degrees expected. * WHERE...Portions of southeast Maryland and east central, eastern, and southeast Virginia. * WHEN...From 11 AM to 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the mid 70s will not provide much relief from hot daytime temperatures. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Heat index values of 105 to 108 degrees expected. * WHERE...Portions of central and south central Virginia. * WHEN...Until 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the mid 70s will not provide much relief from hot daytime temperatures. 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

At 730 PM MDT, Doppler radar was tracking a line of showers extending from near Evergreen to 6 miles south of Wakpamni, or extending from 24 miles northeast of Pine Ridge to 19 miles east of Pine Ridge, moving east at 30 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Porcupine, Allen, Batesland, Swett, Wakpamni, Porcupine Butte

* WHAT...Heat index values up to 105. * WHERE...Portions of northeast Kentucky, southeast Ohio, and central, northern, southern, and western West Virginia. * WHEN...Until 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Additional information can be found at https://www.weather.gov/rlx as well as on our X and Facebook pages.