Moderate

* WHAT...Heat index values up to 105. * WHERE...Logan County. * WHEN...Until 9 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...For the first Heat Advisory, heat index values up to 107. For the second Heat Advisory, heat index values up to 109 expected. * WHERE...In Oklahoma, Harmon, Jackson, and Tillman Counties. In Texas, Archer, Baylor, Foard, Hardeman, Knox, Wichita, and Wilbarger Counties. * WHEN...For the first Heat Advisory, until 9 PM CDT this evening. For the second Heat Advisory, from 1 PM to 7 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

At 109 PM EDT, Doppler radar was tracking a strong thunderstorm 16 miles north of Abbeville, or near Donalds, moving northeast at 20 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 outdoor objects is possible. Locations impacted include... Ware Shoals, Due West, Donalds, Shoals Junction, Princeton, and Hickory Tavern.

At 1249 PM EDT, Doppler radar was tracking a strong thunderstorm near Indiantown, or 10 miles southeast of Lake City, moving east at 20 mph. HAZARD...Wind gusts up to 40 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... Johnsonville, Hemingway, Rhems, Nesmith, Henry, Indiantown, Kingsburg, and Stuckey.

A wake low across east-central Oklahoma is leading to a corridor of gusty southeasterly winds across west-central Oklahoma through approximately 2 PM Friday. JT

At 1153 AM CDT, Doppler radar was tracking a strong thunderstorm near Ewing, or 19 miles southeast of O'Neill, moving southeast at 40 mph. HAZARD...Wind gusts up to 40 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 and Knievels Corner. This includes Highway 20 between mile markers 320 and 326. If outdoors, consider seeking shelter inside a building.

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values from 113 to 114, as well as high temperatures from 103 to 105. For the Heat Advisory, heat index values up to 112 expected. * WHERE...Portions of central, south central, southwest, and west central Louisiana and southeast Texas. * WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening. For the Heat Advisory, from 11 AM to 8 PM CDT Saturday. * IMPACTS...Heat related illnesses increase significantly during

* WHAT...For the first Heat Advisory, heat index values from 109 to 111. For the second Heat Advisory, heat index values from 110 to 112 expected. * WHERE...Lower Iberia, Lower St. Mary, East Cameron, Lower Vermilion, and West Cameron Parishes. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

* WHAT...For the first Heat Advisory, heat index values from 109 to 111. For the second Heat Advisory, heat index values from 110 to 112 expected. * WHERE...Lower Iberia, Lower St. Mary, East Cameron, Lower Vermilion, and West Cameron Parishes. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

At 1130 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from over Mandeville to 10 miles south of De Kalb, or extending from near Texarkana to 11 miles southwest of New Boston, moving south at 10 mph. HAZARD...Wind gusts up to 30 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...