Thunderstorm warnings were issued northwest of the Springfield metro area first, in Cedar County, then spread southwest into Greene, Christian, Webster, Stone and Wright counties. A second line of storms prompted warnings in Laclede, Phelps, Pulaski and Texas counties.
Wind gusts of up to 68 miles per hour were reported by the National Weather Service.
UPDATED information: Springfield City Utilities says at the height of the storm, about 8,000 customers were without electricity according to the system. About 600 customers called in to report no power. By 11:00 a.m., about 4,000 were still without power in widely scattered areas of the city. The mid-town and northern sections of town had the most reports of power out, most wind-driven, a CU official said. Repairs could last until the evening, he said.
Springfield police spokesman Matt Brown said a number of traffic lights were out from the power outages and reminded drivers to treat intersections with darkened lights as a four-way stop.
A large area of southern Missouri and northern Arkansas is under a severe thunderstorm watch until 4pm: in southwest Missouri Barry, Christian, Dent, Douglas, Howell, McDonald, Newton, Oregon, Ozark, Shannon, Stone, Taney, Texas, Webster, Wright and in Arkansas: Baxter, Benton, Boone, Carroll, Cleburne, Fulton, Izard, Madison, Marion, Newton, Searcy, Sharp, Van Buren, Washington.