More tornadoes possible Sunday in battered Midwest(Photo-Video)

A violent storm system unleashed dozens of tornadoes across the Midwest and Plains, leaving five people dead and at least 29 injured in Oklahoma Sunday morning. As the weather gripped the region, twisters or high winds damaged a hospital, homes and cut power to hundreds of thousands, and forecasters warned more storms were possible before the day was over.

Oklahoma emergency officials said five people died after a tornado touched down at 12:18 a.m. Sunday in and around the

Tornadoes Strike in Oklahoma and Texas

A series of tornadoes struck central Oklahoma on Tuesday, wiping out homes and businesses and killing at least four people. Officials said the number could rise as search and rescue teams started to fan out across a state already battered by storms over the weekend.

The largest and most severe of the tornadoes struck around midday, touching down in Caddo County and then sweeping from the southwest to northeast corners of Canadian County, where it devastated El Reno, a town of 15,000 people about 25 miles west of downtown Oklahoma City.

Cherokee Ballard, a spokeswoman for the state medical examiner, said four people had died in Canadian County, where a weather-monitoring site recorded winds of 151 miles per hour, The Associated Press reported.

At least 60 people were reported injured across central Oklahoma, many along the Interstate 40 corridor that runs past El Reno.

The tornado left a trail of shredded and overturned cars along I-40, destroyed livestock, set off a gas line explosion and spurred people across El Reno to evacuate their homes. Amy Brandley, the Canadian County flood plain manager, said emergency crews had only just begun to assess the damage.

“Our county commissioner’s crews are out with heavy equipment clearing roads right now so search and rescues can take place,” she said.

The tornado that struck in El Reno was one of several twisters across the state on Tuesday. By 8 p.m., the National Weather Service had tornado watches in effect across 11 counties and was warning that “supercells,” which can spawn some of the most violent twisters, had developed across the central part of the state and were moving eastward. The agency posted an urgent alert on its Web site predicting an “outbreak of strong tornadoes” throughout late Tuesday.

“Plan now where you will seek shelter,” the notice advised.

In Kansas, the police said two people died when high winds threw a tree into their van around 6 p.m. near St. John, about 100 miles west of Wichita, The A.P. reported.

The news agency said that funnel clouds were reported across the northern suburbs of Dallas and Fort Worth around sundown Tuesday, with brief tornado touchdowns in Corinth, Saginaw and Bedford.

Other brief tornadoes were reported near Springtown and Azle, just northwest of Fort Worth, and near Muenster, 65 miles north of Fort Worth. There were no immediate reports of damage or injuries.

Even the National Weather Service was not immune from the danger. Earlier in the day its Storm Prediction Center in Norman, Okla., about 20 miles south of downtown Oklahoma City, had to be evacuated as one of the day’s tornadoes approached.

Residents flee Missouri flooding; 5 killed in severe weather in Arkansas

Thunder roared and tornado warning sirens blared, and all emergency workers in the southeast Missouri town of Poplar Bluff could do was hope the saturated levee holding back the Black River would survive yet another downpour.

Murky water flowed over the levee Monday at more than three dozen spots and crept toward homes in the flood plain. Some had already flooded. If the levee broke — and forecasters said it was in imminent danger of doing so — some 7,000 residents in and around Poplar Bluff would be displaced.

Meanwhile, in Arkansas at least five people were killed — three in floodwaters and two in a small town where it was likely a tornado ripped through.

In Poplar Bluff, 1,000 homes were evacuated earlier in the day. Sandbagging wasn't an option, Police Chief Danny Whitely said. There were too many trouble spots, and it was too dangerous to put people on the levee. Police went door-to-door encouraging people to get out. Some scurried to collect belongings, others chose to stay. Two men had to be rescued by boat.

It could be a long week of waiting for the rain to stop in Poplar Bluff and other river towns in the Mississippi and Ohio river valleys. Storms have ripped through parts of middle America for weeks, and they were followed Monday by heavy rain and possible tornadoes that pelted an area from northeast Texas to Kentucky.

Three people were killed in Arkansas when floodwaters swept their vehicles off of roadways, authorities said. Arkansas Department of Emergency Management spokesman Tommy Jackson said at least two people died in the central Arkansas town of Vilonia, where a path of damage stretched three miles (five kilometres) wide and 15 miles (24 kilometres) long.

Residents of Vilonia told The Associated Press that storms destroyed much of the town of about 3,800 people about 25 miles (40 kilometres) north of Little Rock. Authorities had closed off the roadways leading into the city.

"The town's gone," said Vilonia resident Sheldon Brock, although he said his house was spared.

Vilonia's fire chief, Keith Hillman, said 50 to 60 residents weren't accounted for, but he expected many simply weren't reachable. He said he didn't expect the death toll to rise significantly.

More than a dozen tornadoes were reported in Texas and Arkansas on Monday night. Widespread damage was reported in largely rural Houston County in East Texas, but the severity wasn't clear because much of the area was without power, Fire Marshal David Lamb said.

The storm system that blew through northeast Texas, Oklahoma and Arkansas on Monday was expected to move into Illinois and Wisconsin on Tuesday, said Greg Carbin, a meteorologist with the Storm Prediction Center in Norman, Oklahoma. At the same time, a second storm system will start along the same path, meaning several more days of rain. That system will continue east through Thursday, he said.

"I think we'll see substantial flooding," Carbin predicted, adding later, "Arkansas to Illinois, that corridor, they've already have incredible rainfall and this is going to aggravate the situation."

The region will get at least 6 inches (15 centimetres) of rain over the next three days, he said. An area east of Little Rock, Arkansas, stretching across Memphis and up to eastern Tennessee will be hardest hit with 8 to 9 inches (20.3 to 22.9 centimetres).

Dozens of roads in multiple states have already closed because of flooding, leading several school districts to cancel classes. Communities such as Paducah, Kentucky, in the Ohio River valley were building flood walls to hold back the water and adding rocks to the top of earthen levees. Others began sandbagging.

The spate of storms has created problems in the U.S. South. Two weeks ago, tornadoes in six states killed 45 people.

In Missouri, the National Guard dispatched dozens of soldiers and rescue equipment to the Poplar Bluff area. Emergency crews rescued a man Monday morning after his pickup truck was swept into a water-filled ditch about 10 miles (16 kilometres) southeast of Poplar Bluff, while state troopers used boats to rescue other people trapped in their homes.

At least 150 people sought shelter at the town's Black River Coliseum, a 5,000-seat concert and meeting venue that overlooks the swollen river and a park that's already under water. Others moved in with friends and relatives.