Moderate

* WHAT...Heat index values up to 108. * WHERE...Barry, McDonald, Newton, Ozark, Stone, and Taney Counties. * WHEN...Until 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...Heat index values up to 104 expected. * WHERE...Cumberland and Sampson Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 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 heat stroke. To reduce risk during outdoor work, the Occupational Safety and

Areas of shallow fog developed early this morning across portions of the area, with visibilities less than 1SM observed. There are patches of dense fog where visibility is around 1/4 SM or less, especially in low lying areas and near open fields. Expect improvement through the morning. If traveling early this morning, be prepared for sudden reductions in visibility over short distances. Slow down, use low beam headlights and increase following distances in fog. Be especially cautious in school zones.

Some patchy dense fog will restrict visibilities to less than one-quarter of a mile across the valleys of the north Georgia mountains. The fog should lift by 9 am. If driving this morning, slow down, use low-beam headlights and leave extra distance between you and the vehicle in front of you.

At 559 AM CDT, Doppler radar was tracking a strong thunderstorm near Page, or 10 miles southeast of O'Neill, moving southeast at 25 mph. HAZARD...Wind gusts up to 50 mph and nickel 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... Ewing, Page, and Inman. This includes Highway 20 between mile markers 316 and 328. If outdoors, consider seeking shelter inside a building.

Shallow fog has developed early this morning across portions of the area outside of Chicago and may expand in coverage. Some fog has become locally dense, with visibilities down to one quarter mile or less, especially in low lying areas and near open fields. Conditions will gradually improve after sunrise. If traveling early this morning, be prepared for sudden reductions in visibility over short distances. Slow down, use low beam headlights and increase following distances in fog. Be

At 520 AM CDT, Doppler radar was tracking a strong thunderstorm near O'Neill, moving southeast at 25 mph. HAZARD...Wind gusts up to 50 mph and nickel 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... O'Neill and Inman. This includes the following highways... Highway 20 between mile markers 300 and 317. Highway 281 between mile markers 173 and 194.

At 522 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 7 miles west of Patton to near Sam A. Baker State Park. 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... Piedmont, Marble Hill, Greenville, Sam A. Baker State Park, Lake

* WHAT...Heat index values up to 111 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

If traveling through river valleys this morning, be prepared for fog that could suddenly reduce visibilities to 1/4 mile or less, particularly in southwest Wisconsin. Areas of fog will be possible outside of river valleys, but visibilities of 1/4 mile are less likely. Expect the fog to dissipate by mid-morning. Slow down and allow extra time to reach your destination.