Moderate

* WHAT...Heat index values up to 106 on Saturday afternoon, with low temperatures only falling into the upper 70s tonight. * WHERE...Harper, Woods, and Woodward Counties. * WHEN...Until 7 PM CDT Saturday. * 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

* WHAT...Heat index values of 105 to 110 on Saturday and Sunday afternoon and early evening, with low temperatures only falling into the upper 70s overnight. * WHERE...Portions of central, east central, northern, northwest, southeast, and southern Oklahoma. * WHEN...Until 7 PM CDT Sunday. * 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.

At 742 PM MDT, Doppler radar was tracking a line of strong thunderstorms extending from 18 miles northwest of Clyde Park to 10 miles west of Livingston, moving east at 25 mph. HAZARD...Wind gusts of 45 to 55 mph, brief moderate rain and perhaps 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... Livingston, Clyde Park, Wilsall and Springdale.

* WHAT...Heat index values up to 110 degrees. * WHERE...Portions of central and south Mississippi, southeast Arkansas, and northeast Louisiana. * WHEN...Until 8 PM CDT Monday. * IMPACTS...High temperatures and high humidity may cause heat related illnesses. * ADDITIONAL DETAILS...Temperatures at night will not bring much relief as they struggle to fall below 80 in some cases. The threat for dangerous heat will continue into next week. Drink plenty of fluids, stay in an air-conditioned room, stay out of

At 611 PM PDT, Doppler radar was tracking a strong thunderstorm 23 miles southwest of Battle Mountain, moving northeast at 15 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. This storm may reach State Route 305 by 630PM. This storm will remain over mainly rural areas of southeastern Humboldt and north central Lander Counties.

At 923 PM EDT, Doppler radar was tracking a strong thunderstorm near Mechanicsville, moving southeast at 20 mph. HAZARD...Wind gusts up to 40 mph and heavy rain. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Reduced visibility and minor flooding possible. This strong thunderstorm will be near... Mechanicsville and East Highland Park around 930 PM EDT. Highland Springs around 935 PM EDT. Other locations impacted by this storm include Wrights Corner,

At 700 PM MDT, Doppler radar was tracking a line of strong thunderstorms extending from 12 miles south of Otis to over Thurman, or extending from 16 miles southeast of Akron to 33 miles northeast of Limon, moving east at 10 mph. HAZARD...Wind gusts up to 50 mph and half inch 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... Arickaree School, Cope, Anton and Thurman.

At 901 PM EDT, Doppler radar was tracking a strong thunderstorm near Carrabelle, moving southwest at 10 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... Carrabelle, St George Island, Eastpoint, Franklin, Carrabelle Beach, Morgan Place, Turkey Point, Royal Bluff, Mcintyre, High Bluff, Yent Place, St George Island St Pk, Beverly, Green Point, Lanark Village,

At 703 PM MDT, Doppler radar was tracking a line of strong thunderstorms extending from 5 miles east of Elbert to near Thurman, or extending from 41 miles west of Limon to 34 miles northeast of Limon, moving north at 15 mph. HAZARD...Wind gusts up to 50 mph and half inch 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...

At 708 PM MDT, Doppler radar was tracking a strong thunderstorm near Elkins, or 31 miles northeast of Roswell, moving north at 20 mph. HAZARD...Wind gusts of 50 to 55 mph and half inch 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... Elkins. Monitor the weather situation closely and be alert for threatening weather conditions.