Moderate

* WHAT...Heat index values up to 107 expected. * WHERE...In Arkansas, Washington AR County. In Oklahoma, Adair County. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and

At 1249 PM AST, Doppler radar was tracking a strong thunderstorm over Miranda, or over Vega Baja, moving northwest at 10 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Vega Baja, Manati, Vega Alta, Ceiba, Coto Norte, Miranda, Monserrate, Brenas and Sabana. If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm.

* WHAT...For the first Heat Advisory, heat index values up to 109. For the second Heat Advisory, heat index values up to 107 expected. * WHERE...Portions of south central and southwest Arkansas, north central and northwest Louisiana, southeast Oklahoma, and east and northeast Texas. * WHEN...For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from 10 AM to 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

At 1152 AM CDT /1052 AM MDT/, Doppler radar was tracking an area of strong thunderstorms 11 miles south of Holabird, or 11 miles southwest of Highmore, moving northeast at 40 mph. Also, strong thunderstorms were located from near Murdo to Presho to Grey Hill Rec Area. HAZARD...Wind gusts of 50 to 55 mph and pea 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.

* WHAT...For the first Heat Advisory, heat index values up to 109. For the second Heat Advisory, heat index values up to 107 expected. * WHERE...Portions of south central and southwest Arkansas, north central and northwest Louisiana, southeast Oklahoma, and east and northeast Texas. * WHEN...For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from 10 AM to 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

At 1053 AM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 5 miles west of Hobson to 5 miles north of Harlowton. Movement was east at 30 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Lewistown, Hobson, Moore, Moccasin, Ackley Lake State Park,

* WHAT...Heat index values as high as 107 expected. * WHERE...In Kansas, Jewell, Mitchell, Osborne, Rooks, and Smith Counties. In Nebraska, Nuckolls and Thayer Counties. * WHEN...From noon to 7 PM CDT Tuesday. * 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 107 expected. * WHERE...Portions of southwest Iowa and southeast Nebraska. * WHEN...From 1 PM to 7 PM CDT Tuesday. * 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 1040 AM MDT, Doppler radar was tracking an area of strong thunderstorms extending from 19 miles northwest of Harlowton to 17 miles northeast of Clyde Park, moving east at 25 mph. HAZARD...Wind gusts of 50 to 55 mph and pea 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... Harlowton, Deadmans Basin Reservoir, Judith Gap, Twodot, Melville and Shawmut.

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of East Arkansas, North Mississippi, and West Tennessee. * WHEN...From 11 AM to 8 PM CDT Tuesday. * 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