Moderate

* WHAT...For the Heat Advisory today, heat index values up to 109. For the Heat Advisory Sunday, heat index values up to 110 expected. * WHERE...Portions of central, southern, southwest, and western Oklahoma and northern Texas. * WHEN...For the Heat Advisory today, until 7 PM CDT this evening. For the Heat Advisory Sunday, from noon to 8 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

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of central, east central, northwest, and southeast Oklahoma. * WHEN...From noon to 8 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.

* WHAT...For the Heat Advisory today, heat index values up to 109. For the Heat Advisory Sunday, heat index values up to 110 expected. * WHERE...Portions of central, southern, southwest, and western Oklahoma and northern Texas. * WHEN...For the Heat Advisory today, until 7 PM CDT this evening. For the Heat Advisory Sunday, from noon to 8 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

* WHAT...For the Heat Advisory today, heat index values up to 106. For the Heat Advisory Sunday, heat index values up to 108 expected. * WHERE...Portions of central, northern, northwest, southern, and western Oklahoma. * WHEN...For the Heat Advisory today, until 7 PM CDT this evening. For the Heat Advisory Sunday, from noon to 8 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

* WHAT...Southeast winds 15 to 25 mph with gusts up to 35 mph. * WHERE...Fort Peck Lake. * WHEN...Until 3 AM MDT Sunday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Waves up to 3 feet possible. Boaters on Fort Peck Lake should use extra caution since strong winds and rough waves can overturn small craft.

At 249 PM EDT, Doppler radar was tracking a strong thunderstorm over Buffalo, or 9 miles northwest of Winfield, moving east at 25 mph. HAZARD...Wind gusts up to 50 mph and half inch 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... Winfield, Sissonville, Buffalo, Kenna, Grimms Landing, Given, Southside, Fraziers Bottom, Liberty, and Fairplain.

At 252 PM EDT, Doppler radar was tracking a strong thunderstorm over East Sparta, or 9 miles northeast of Dover, moving northeast at 35 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... Minerva, Waynesburg, East Sparta, and Robertsville. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to

At 152 PM CDT, Doppler radar was tracking a strong thunderstorm 8 miles east of Goodman, or 8 miles southeast of Neosho, moving southeast at 20 mph. HAZARD...Wind gusts up to 50 mph and half inch 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... Neosho, Big Sugar Creek State Park, Wheaton, Fairview, Stella, Powell, and Rocky Comfort.

* WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN...Through Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures.

At 229 PM EDT, Doppler radar was tracking a strong thunderstorm over Massillon, or 7 miles west of Canton, moving northeast at 35 mph. HAZARD...Wind gusts up to 40 mph and half inch 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... Canton, Massillon, Green, Alliance, North Canton, Louisville, Sebring, Hartville, Navarre, Canal Fulton, Randolph, Atwater, East