* WHAT. Heat index values up to 110 degrees expected. * WHERE. Portions of northeast Louisiana and central and south Mississippi. * WHEN. Until 8 PM CDT this evening. * IMPACTS. High temperatures and high humidity may cause heat illnesses.

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 514 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ARKANSAS THIS WATCH INCLUDES 7 COUNTIES IN SOUTH CENTRAL ARKANSAS UNION IN SOUTHWEST ARKANSAS COLUMBIA HEMPSTEAD LAFAYETTE LITTLE RIVER MILLER NEVADA IN LOUISIANA THIS WATCH INCLUDES 14 PARISHES IN NORTH CENTRAL LOUISIANA GRANT JACKSON LINCOLN UNION WINN IN NORTHWEST LOUISIANA BIENVILLE BOSSIER CADDO CLAIBORNE DE SOTO NATCHITOCHES RED RIVER SABINE WEBSTER IN TEXAS THIS WATCH INCLUDES 16 COUNTIES IN NORTHEAST TEXAS ANGELINA BOWIE CASS CHEROKEE GREGG HARRISON MARION MORRIS NACOGDOCHES PANOLA RUSK SABINE SAN AUGUSTINE SHELBY SMITH UPSHUR THIS INCLUDES THE CITIES OF ARCADIA, ASHDOWN, ATLANTA, BERNICE, BIG SANDY, BOSSIER CITY, BRADLEY, CARTHAGE, CENTER, COLFAX, COUSHATTA, DAINGERFIELD, DRY PRONG, EL DORADO, FARMERVILLE, GIBSLAND, GILMER, HAYNESVILLE, HEMPHILL, HENDERSON, HOMER, HOPE, HUGHES SPRINGS, JACKSONVILLE, JEFFERSON, JONESBORO, LEWISVILLE, LINDEN, LOGANSPORT, LONE STAR, LONGVIEW, LUFKIN, MAGNOLIA, MANSFIELD, MANY, MARSHALL, MARTIN, MINDEN, MONTGOMERY, NACOGDOCHES, NAPLES, NATCHITOCHES, OMAHA, PINELAND, PLEASANT HILL, PRESCOTT, QUEEN CITY, RINGGOLD, RUSK, RUSTON, SAN AUGUSTINE, SHREVEPORT, SPRINGHILL, STAMPS, STONEWALL, TEXARKANA, TEXARKANA, TYLER, WINNFIELD, AND ZWOLLE.