Additional Tornadoes, Flooding Feared for Kansas, Oklahoma and Texas

— -- Residents in Kansas, Oklahoma and Texas are bracing for the potential for additional severe weather days after the region was slammed by dozens of tornadoes and heavy flooding.

Southern Oklahoma and northern Texas face a moderate risk of severe weather today, a risk that is expected to grow on Saturday. Nine tornadoes were reported across the region Thursday, although none appeared to have caused major damage.

In Denton, Texas, a fire burned most of the night after lightning apparently struck a gas well. A train derailment also occurred in Denton County, leaving four crew members hospitalized, their conditions unknown, BNSF spokesman Joe Faust said.

Nebraska Gov. Pete Ricketts surveyed storm damage and flooding via helicopter before declaring a state of emergency for affected areas.

A state of emergency has been issued across Oklahoma.

More than seven inches of rain fell in Oklahoma City Wednesday -- the third-highest rainfall for any day on record, dating back to 1890, meteorologists said. Those downpours are being blamed for one death, a 43-year-old woman, Skylyna Stewart, who drowned after becoming trapped inside her underground storm cellar.

While strong tornadoes are possible Saturday, the major risk areas do not include heavily-populated areas such as Dallas and Oklahoma City.

The Southern Plains storm system comes as the first named storm of the Atlantic hurricane season -- Ana -- sits off the coastline of the Carolinas. That storm system is expected to bring large waves and some rain squalls for the coastline.

The Associated Press contributed to this report.