• Cities such as Dallas, Houston and Austin are all in the area of greatest risk into Monday night.
  • Flash flooding is also a concern in many of the same locations facing the threat of severe storms.

Dangerous storms are in the forecast for portions of the southern U.S. over the next three days, forecasters warned, and all modes of severe weather are possible, including multiple tornadoes that have already touched down in Texas and Oklahoma. 

Dallas, Houston and Austin are all in the area of greatest risk into Monday night, the Storm Prediction Center said.

A tornado touched down around 3:41 p.m. Monday in Jacksboro, Texas, a city of about 5,000 people northwest of Fort Worth, according to Accuweather. The tornado damaged mobile homes and trees near the city, the National Weather Service said, and NBC 5 reported Jacksboro High School and the city’s animal shelter were both damaged.

Multiple highways in Jack County were closed due to downed trees and debris, the Texas Department of Transportation Fort Worth District tweeted.

Another tornado struck Madisonville, about 100 miles of Houston, on Monday night, according to the National Weather Service

A line of strong thunderstorms advancing toward the Interstate 35 corridor that runs between San Antonio and Austin broke into multiple tornadoes Monday afternoon.

WHAT IS A TORNADO? Everything you need to know about these violent storms

A confirmed tornado reached the ground in Luling, between Austin and San Antonio, according to the National Weather Service. Another touched down in Round Rock, north of Austin, the Williamson County Office of Emergency Management said, in addition to a “massive tornado” east of Round Rock, near Taylor.

Wind and downed trees tore through the roofs of dozens of Round Rock houses and a few businesses east of Interstate 35 and north of Texas 45. 

“I thought I was going to die,” said Michael Talamantez, whose Round Rock house was destroyed on Stratford Drive after a tornado touched down. 

After the tornado, Round Rock lost some power on the east side of town but officials aren’t sure how many people are affected.

Multiple cars appeared significantly damaged at Kalahari Resort in Round Rock, KVUE fixed cameras showed. They appear to have been tossed and windows shattered.

The city of Elgin, east of Austin, saw major damage and some injuries, according to officials. Elgin police reported at least four injuries, including a rescue underway of two people in a collapsed structure. One person also has been taken to a hospital in Austin. 

Elgin city manager Bert Cunningham said the worst damage was east of the town, with as many as four entrapments reported.