Moderate

* WHAT...Heat index values up to 112 expected. * WHERE...Northeast and north central Florida and portions of southeast Georgia. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * 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

* WHAT...For the Extreme Heat Warning, dangerously hot conditions. Afternoon temperatures 109 to 112. Major Heat Risk. For the Blowing Dust Advisory, visibility between one-quarter and one mile in blowing dust expected. * WHERE...Buckeye/Avondale, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek. * WHEN...For the Extreme Heat Warning, until 8 PM MST Friday. For the Blowing Dust Advisory, from 5 PM this afternoon to 10 PM MST this evening.

* WHAT...For the Extreme Heat Warning, dangerously hot conditions. Afternoon temperatures 106 to 113. Major Heat Risk. For the Blowing Dust Advisory, visibility between one-quarter and one mile in blowing dust expected. * WHERE...Gila Bend, Northwest Pinal County, Sonoran Desert Natl Monument, Tonopah Desert, and West Pinal County. * WHEN...For the Extreme Heat Warning, until 8 PM MST Friday. For the Blowing Dust Advisory, from 5 PM this afternoon to 10 PM MST this evening.

At 149 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from 15 miles north of Ideal to near Haystack Butte, or extending from 27 miles north of Winner to 9 miles east of Mission, moving east at 20 mph. HAZARD...Wind gusts up to 50 mph and half inch 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...

At 155 AM CDT, Doppler radar was tracking a strong thunderstorm 9 miles southwest of Earling Hill, or 12 miles south of Presho, moving east at 15 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 damage to outdoor objects is possible. This strong thunderstorm will remain over mainly rural areas of West Central Lyman County. Monitor the weather situation closely and be alert for threatening

* WHAT...Heat index values up to 106 expected. * WHERE...Coastal Onslow, Duplin, East Carteret, Inland Onslow, Jones, Northern Craven, Pamlico, Southern Craven, and West Carteret Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * 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

* WHAT...Heat index values up to 111 expected. * WHERE...Portions of southeast Georgia and southeast South Carolina. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * 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 110 expected. * WHERE...Inland Berkeley County. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * 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 northwest, southwest, and western Oklahoma and northern Texas. * WHEN...From 11 AM this morning to 8 PM CDT this evening. * 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...Strong thunderstorms with organized outflow wind gusts of 45-55 mph will result in blowing dust, reducing visibility between one-quarter mile and one mile at times. Dense blowing dust will initially develop across southeast Pima and western Santa Cruz counties during the late afternoon and spread west to northwest across the Tohono O'odham Nation and into western Pima and southeast Pinal counties through the evening. * WHERE...Upper Santa Cruz River Valley/Altar Valley.