At least 16 people have been killed in a monster storm sweeping across much of the U.S. Ten people were killed in Missouri after a tornado outbreak, the Missouri State Highway patrol said Saturday. The agency said multiple people were also injured.

The National Weather Service issued multiple tornado and severe thunderstorm warnings early Saturday for areas in Alabama, Kentucky, Mississippi, Tennessee, Illinois, Indiana and Texas.

The Storm Prediction Center said fast-moving storms could spawn twisters and hail as large as baseballs, but the greatest threat would come from straight-line winds near or exceeding hurricane force, with gusts of 100 mph (160 kph) possible.

Dry conditions and high wind could fuel wildfires starting Friday. Here's what Oklahomans should expect this week.

After a beautiful day on Thursday, Oklahomans will need to prepare for a high fire danger risk on Friday as strong wind gusts will blow through the state. KOCO 5 Meteorologist Joseph Neubauer says a red flag warning has been issued for western and northwestern Oklahoma as well as the Oklahoma Panhandle.

A Fire Warning has been issued by the National Weather Service for counties in Western Oklahoma. According to KFOR Meteorologist Aaron Brackett, the fire and wind threat has increased due to fast winds and dry air.