Severe thunderstorm warning issued for Linn, Jones and Cedar counties

From the National Weather Service in the Quad Cities

Severe Thunderstorm Warning National Weather Service Quad Cities IA/IL 501 PM CDT FRI JUL 21 2017 The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Northwestern Cedar County in east central Iowa... Jones County in east central Iowa... Eastern Linn County in east central Iowa... * Until 600 PM CDT * At 501 PM CDT, severe thunderstorms were located along a line extending from near Bertram to near Mechanicsville, moving northeast at 35 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Cedar Rapids, Anamosa, Mechanicsville, Marion, Mount Vernon, Monticello, Lisbon, Ely, Springville, Olin, Shueyville, Bertram, Martelle, Prairieburg, Morley, Center Junction, Waubeek, Stone City, Viola and Whittier. If you are at Monticello Fairgrounds you should seek safe shelter immediately! This includes Interstate 380 between mile markers 12 and 13. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a sturdy building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.