Moderate

* WHAT...Visibility of a quarter-mile or less in dense fog. * WHERE...Interior Hancock, Central Penobscot, and Southern Penobscot Counties. * WHEN...Until 7 AM EDT 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...Afternoon high temperatures climbing into the 104 to 108 degree range this afternoon. * WHERE...Callahan, Fisher, Haskell, Jones, Nolan, Shackelford, Taylor, and Throckmorton Counties. * WHEN...From 1 PM this afternoon to 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. A Heat Advisory means that hot weather conditions are occurring or expected. This will create a situation in which heat illnesses are possible.

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of central, eastern, southeast, southwest, and western Arkansas. * 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 fitting clothing. Try to limit strenuous activities to early morning

* WHAT...Heat index values up to 109 expected. * WHERE...Central and Eastern Montgomery, Central and Southern Scott, Northern Montgomery County Higher Elevations, Northern Polk County Higher Elevations, Northern Scott, Polk County Lower Elevations, Southeast Polk County Higher Elevations, and Southwest Montgomery County Higher Elevations Counties. * WHEN...From 11 AM this morning to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

* WHAT...Temperatures as high as 106 degrees. * WHERE...Collingsworth County and Palo Duro Canyon. * WHEN...From noon today to 9 PM CDT this evening. * IMPACTS...Hot temperatures 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat

* WHAT...Heat index values up to 110 degrees. * WHERE...Portions of south central Arkansas, north central and northwest Louisiana, and east and northeast Texas. * 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning

At 1227 AM CDT, Doppler radar was tracking a strong thunderstorm over Wardell, or 8 miles northwest of Hayti, moving east at 40 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... Kennett, Caruthersville, Portageville, Hayti, Steele, Reelfoot Lake State Park, Tiptonville, Ridgely, Hayti Heights, Cooter, Wardell, Bolton, Deering, Heloise, Miston, Cottonwood Grove, Hornbeak,

At 1028 PM MST, Doppler radar was tracking an outflow boundary near New River, moving northwest at 35 mph. HAZARD...Wind gusts up 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... Phoenix, Glendale, Scottsdale, Peoria, Surprise, Goodyear, Buckeye, El Mirage, Youngtown, New River, Sun City West, Waddell, Circle City,

At 101 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Citrus Park to near Pinellas Park to Bay Pines. Movement was south at 10 mph. HAZARD...Wind gusts of 40 to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Tampa, Clearwater, Largo, Pinellas Park, Seminole, Downtown Saint Petersburg, Saint Petersburg, Fort Desoto Park, St. Petersburg, St.

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of central, south central, southwest, and west central Louisiana and southeast Texas. * WHEN...From noon today 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 fitting clothing. Try to limit strenuous activities to early morning