NORMAN, Okla. (AP) — Forecasters say severe storms are likely Monday in parts of the Southern and Great Plains states, with tornadoes and very large hail a possibility in some areas.

The Storm Prediction Center in Norman, Oklahoma, says the greatest risk for bad weather is in Arkansas, Louisiana, Oklahoma and Texas. But forecasters say the storms could stretch into parts of Missouri and western Illinois, where isolated tornadoes can’t be ruled out.

In all, about 41 million people from Houston to Des Moines, Iowa, are at risk for some type of stormy weather Monday.

Mother’s Day twisters in Nebraska and Kansas did not prompt any immediate reports of injuries or damage.

The National Weather Service says severe storms spawned at least two tornadoes in western Kansas. Meteorologist Ray Burgert says a tornado touched down in Trego County just after 6 p.m. Sunday and another touched down in northern Ellis county around 7:20 p.m.

Burgert says the weather service didn’t receive any immediate reports of damage or injuries.

The National Weather Service says it received reports of tornadoes in central Nebraska amid severe storms but no word of damage or injuries.

Meteorologist Jeremy Martin says it is likely that two separate tornadoes touched down in Red Willow County near the town of Indianola. He says another tornado was reported in open country in Frontier County. Martin says the weather service didn’t receive any reports of damage from local authorities.

More storms are possible Monday afternoon and evening.