Moderate

* WHAT...Heat index values up to 112 expected. * WHERE...Portions of south central and southwest Alabama, northwest Florida, and southeast Mississippi. * 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. Take extra precautions when outside. Wear lightweight and loose

Patchy dense fog has developed early this morning. Most locations may just experience low overcast, but isolated locations and a handful of observations have reported visibility as low as a quarter of a mile. Gradual improvement is expected through 9 or 10 AM. If driving, slow down and leave extra distance ahead of you in case a sudden stop is needed.

At 602 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 11 miles southwest of Fairview to near Centerville to 12 miles north of Linden. Movement was east at 35 mph. HAZARD...Wind gusts up to 40 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...

At 603 AM CDT, Doppler radar was tracking a strong thunderstorm over Hazel Green, or near Meridianville, moving northeast 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... Winchester, Moores Mill, Meridianville, Hazel Green, Huntland, Tims Ford Lake, New Market, Lincoln, Lexie Crossroads, and Plevna. If outdoors, consider seeking shelter inside a building.

At 707 AM EDT, Doppler radar was tracking a strong thunderstorm near Kingston, moving northeast at 30 mph. HAZARD...Winds in excess of 30 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Oak Ridge, Clinton, Kingston, Rockwood, Oliver Springs, Midtown, Harriman, Oakdale, Coalfield, and Bradbury. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to

At 610 AM CDT, Doppler radar was tracking a strong thunderstorm over Oak Grove, moving southeast at 45 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... Clarksville, Springfield, Adams, Cedar Hill, Cunningham, and Woodlawn. This includes Interstate 24 between mile markers 1 and 20. If outdoors, consider seeking shelter inside a building.

* WHAT...Visibility one half mile or less at times in dense fog. * WHERE...Portions of central, east central, southwest, and west central Missouri. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

At 549 AM CDT, Doppler radar was tracking a strong thunderstorm near Lynchburg, moving northeast at 35 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... Lynchburg, Estill Springs, Tims Ford Lake, Mulberry, Woods Reservoir, Arnold AFB, Belleville, Lois, Mimosa, and Booneville. If outdoors, consider seeking shelter inside a building.

* WHAT...Visibility below one half a mile in dense fog. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Visibility below one half a mile in dense fog. * WHERE...Bon Homme and Yankton Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.