Moderate

Winds will gradually ease through the evening.

* WHAT...Afternoon heat index values will reach or exceed 100 across much of the area, with some locations peaking around 107. * WHERE...A portion of East Tennessee, primarily in valley locations, including the Sequatchie Valley, will be most likely to approach heat indices near or slightly above 105F during the peak heat of the late afternoon hours. * WHEN...Until 8 PM EDT /7 PM CDT/ Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

* WHAT...Afternoon heat index values will reach or exceed 100 across much of the area, with some locations peaking around 105. * WHERE...Northern Cumberland Plateau and portions of East Tennessee including: Anderson, Campbell, Knox, Morgan, North Sevier, Northwest Blount, Scott TN, and Union Counties. * WHEN...From 1 PM Thursday to 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of

At 844 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 18 miles north of Ashby to 6 miles west of Lewellen. Movement was east at 30 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... Arthur, Lewellen, Hyannis, Whitman, Ashby, Lemoyne, Duluth, Dipping Vat Meadow, Swede Lake, Intersection of Highway 61 and Survey Valley

At 821 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 8 miles northeast of Ellsworth to 6 miles southeast of Lisco. Movement was east at 25 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... Oshkosh, Ellsworth, Lewellen, Ashby, Crescent Lake National Wildlife Refuge, Big Hill, Dogtown Flats, Dipping Vat Meadow, Swede Lake, Deer

At 800 PM MDT, Doppler radar was tracking a strong thunderstorm 7 miles northeast of Potato Creek, or 26 miles southwest of Kadoka, moving northeast 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... Wanblee, Potato Creek, Interior, Cedar Pass and Intersection of Highway 73 and White River. This includes Interstate 90 in South Dakota between Mile Markers 134 and 150.

At 802 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 9 miles northeast of Devils Creek Rec Area to 17 miles west of Cohagen. Movement was northeast at 50 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... Jordan, Fort Peck, The Pines Rec Area, Duck Creek Rec Area, Fort Peck Marina, Hell Creek Rec Area, Flowing Wells Rest Area, Cohagen, Nelson

The National Weather Service in Spokane has issued a * Dust Advisory for... Western Kootenai County in the Panhandle of Idaho... East central Lincoln County in eastern Washington... Spokane County in northeastern Washington... * Until 800 PM PDT. * At 702 PM PDT, a dust channel was over Spokane, moving northeast at 30 mph. HAZARD...One mile visibility or less with strong wind in excess of 30 mph. SOURCE...Doppler radar. IMPACT...Hazardous travel. * This includes the following highways...

At 805 PM MDT, Doppler radar was tracking a strong thunderstorm near Bredette, or 16 miles south of Scobey, moving north 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 damage to outdoor objects is possible. Locations impacted include... Scobey, Flaxville, Bredette, Madoc, and Four Buttes. If outdoors, consider seeking shelter inside a building.

* WHAT...Heat index values up to 104. * WHERE...All central Indiana counties. * WHEN...Until 8 PM EDT Friday. * 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 or evening. Take action when you see symptoms of heat exhaustion and heat stroke.