Moderate

At 847 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Sibley Peak to 6 miles southwest of Westview Circle to near Sybille Canyon. Movement was northeast at 40 mph. HAZARD...Wind gusts of 50 to 55 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...

* WHAT...Heat index values up to 109. * WHERE...Portions of central, east central, northern, northwest, southeast, southern, and southwest Oklahoma and northern Texas. * WHEN...Until 7 PM CDT Monday. * 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 852 PM MDT, Doppler radar was tracking gusty showers over Fort Hall Eagle Lodge, or 7 miles southwest of Blackfoot, moving north at 25 mph. HAZARD...Wind gusts in excess of 45 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Blackfoot, Firth, Fort Hall Buffalo Lodge, Rose, Fort Hall Eagle Lodge, Fort Hall Lincoln Creek Lodge, Taber, Fort Hall Townsite, Rockford, Moreland, Pingree, Groveland, and Wapello.

At 839 PM MDT, Doppler radar was tracking a strong thunderstorm 16 miles east of Geraldine, or 35 miles east of Fort Benton, moving northeast at 30 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... Judith Landing and Iliad. If outdoors, consider seeking shelter inside a building.

At 814 PM MDT, Doppler radar was tracking a strong thunderstorm 9 miles south of Wibaux, moving north 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 damage to outdoor objects is possible. Locations impacted include... Wibaux, Saint Phillip, and Yates. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to

At 818 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 9 miles southeast of Power to 10 miles northwest of Black Eagle to near Great Falls. Movement was northeast 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... Great Falls, Power, Carter, Floweree, and Portage.

At 818 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from Garrett to 10 miles west of Sybille Canyon. Movement was north at 60 mph. HAZARD...Wind gusts of 50 to 55 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... Laramie Peak, Harris Park, Flying X Ranch, Garrett, and Friend Park Campground.

At 920 PM CDT, Doppler radar was tracking a strong thunderstorm near Montrose, or 9 miles southwest of Clinton, moving north at 10 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... Deepwater, Montrose, and La Due. If outdoors, consider seeking shelter inside a building.

At 827 PM MDT, Doppler radar was tracking a strong thunderstorm near Carpenter, or 23 miles east of Cheyenne, moving north at 20 mph. HAZARD...Wind gusts up to 40 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... Burns, Egbert, Carpenter, and Hillsdale. If outdoors, consider seeking shelter inside a building.

At 710 PM PDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 21 miles northeast of Chewelah to 7 miles north of Priest River. Movement was north at 30 mph. HAZARD...Winds in excess of 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 outdoor objects is possible. Locations impacted include... Browns Lake Campground, Lost Creek, Ruby, and South Skookum Lake