Moderate

* WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Door County. * WHEN...From Tuesday evening through Wednesday morning. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Rock Island State Beach, Baileys Harbor beaches and Whitefish Dunes Beach in Door County.

At 753 PM MDT /853 PM CDT/, Doppler radar was tracking a line of strong thunderstorms extending from 9 miles south of Midland to 10 miles east of Midland, or extending from 18 miles northeast of Kadoka to 30 miles northeast of Kadoka, moving east at 10 mph. HAZARD...Wind gusts up to 50 mph and penny 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... Midland.

At 755 PM MDT, Doppler radar was tracking a strong thunderstorm near Elk Mountain, or 37 miles east of Rawlins, moving east at 30 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Hanna, Medicine Bow, Elk Mountain, Turpin Reservoir, McFadden, Bow River Campground, Deep Creek Campground, and Arlington. If outdoors, consider seeking shelter inside a building.

At 655 PM PDT, Doppler radar was tracking a strong thunderstorm near Howluk Butte, or 29 miles north of Denio, moving northeast at 35 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Areas of blowing dust possible. Locations impacted include... Alvord Hot Springs, Three Man Butte, Mickey Butte, Andrews, Twin Buttes, Willow Creek Hot Springs, Skull Creek Reservoir, Buckskin

At 759 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms 12 miles north of Flying X Ranch, or 21 miles west of Wheatland, moving east at 35 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Wheatland, Chugwater, Chugcreek, Lakeview North, Bordeaux, Westview Circle, Y-O Ranch, Phifer Airfield, Dwyer Junction, Flying X Ranch,

At 629 PM PDT, Doppler radar was tracking a strong thunderstorm about 25 miles north of Midas, moving to the northeast at around 20 mph. HAZARD...Wind gusts of 50 to 55 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 will remain over mainly rural areas of northwestern Elko County. Frequent cloud to ground lightning is occurring with this storm.

At 734 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 9 miles south of Delle to Bountiful. Movement was northeast at 20 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Salt Lake City, West Valley City, Murray, Bountiful, Tooele, Farmington, Grantsville, Morgan, Taylorsville, Kaysville, South Salt

* WHAT...Temperatures and heat index values up to 109 expected. * WHERE...Portions of east central, southeast, southern, and southwest Oklahoma and northern Texas. * WHEN...From 1 PM to 7 PM CDT Tuesday. * 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...Heat index values up to 109 expected. * WHERE...Portions of northwest and west central Arkansas and east central and southeast Oklahoma. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning

At 839 PM CDT, Doppler radar was tracking a strong thunderstorm 9 miles southwest of Merriman, or 18 miles east of Gordon, moving southeast at 25 mph. HAZARD...Wind gusts up to 50 mph and penny 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... Highway 61 Crossing The Niobrara River, Intersection of Highway 20 and Irwin Road, and Intersection of Highway 61 and Shadbolt Road.