00:55 Flooding Still Causing Issues in Houston The Weather Channel's Justin Michaels says even though Beta has moved out, flooding remains in the Houston area.

After days of flooding swamped towns in Texas, authorities in San Antonio got good news Sunday afternoon.

A 41-year-old homeless man who was swept away by floodwaters was located more than a day after rushing water swept him away, according to News 4 San Antonio. Roel Martinez was caught in the raging water when he chased after his dog, officials said, and after several hours, the search was called off due to unsafe conditions, the San Antonio Express-News reported.

<img class="styles__noscript__2rw2y" src="https://dsx.weather.com//util/image/w/storm_victim_found_01_jl.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0" srcset="https://dsx.weather.com//util/image/w/storm_victim_found_01_jl.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 400w, https://dsx.weather.com//util/image/w/storm_victim_found_01_jl.jpg?v=ap&w=980&h=551&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 800w" > Roel Martinez and his girlfriend, Angela Crandall, embrace after Martinez was located. (San Antonio Express-News/Jerry Lara) (San Antonio Express-News/Jerry Lara)

More than 24 hours later, Martinez was located. He was treated for minor injuries and released from the hospital, News 4 San Antonio added.

"You can call it luck, you can call it blessed, you can call it all of those things," San Antonio Fire Department Chief Charles Hood told News 4 San Antonio.

(MORE: Flood Threat Moves East )

In East Baton Rouge, Louisiana, a school bus carrying 20 children became stuck on a bridge in rising floodwaters Monday morning. Deputies and a Maritime Response Team with the East Baton Rouge Sheriff's Office rescued the children. No one was hurt.

Thousands lost power in Louisiana as a slow-moving storm system compounded by the remnants of Hurricane Patricia continued to bring severe weather and the threat of flooding from Texas east into parts of Louisiana, Mississippi and Arkansas.

The National Weather Service in New Orleans reported that an EF0 tornado shifted a mobile home off its foundation Sunday morning near Destrehan, Louisiana, injuring an elderly woman.

However, Texas has seen the worst of the weather so far. Some parts of Houston saw as many as 9 inches of rain this weekend, canceling many outdoor events, including the Houston Half-Marathon and the Gulf Coast International Dragon Boat Regatta.

Saturday's storms pushed the EOC into full activation overnight as heavy rain at the rate of 2 to 3 inches per hour put main arteries under water. The Houston EOC reported high water and disabled vehicles in at least a dozen locations around the city. Residents were urged to stay off the roads.

"Residents who must travel are asked to plan extra time, and to not drive through areas of high water," the Emergency Operation Center stated. "If water is too deep to see the street, it is too deep for a vehicle."

By mid-morning Sunday, the EOC had returned to regular operations as the water started to recede and highways cleared.

A small levee was breached in Navarro County Sunday afternoon, a few miles southwest of Rice.

Heavy flooding in northern and central Texas caused major headaches across the state Saturday morning as floodwaters continued to inundate major highways and derailed a Union Pacific train. Swift-water rescue teams were deployed. Union Pacific spokesman Jeff DeGraff told WFAA, "Our conductor and engineer, once they put the train into emergency stop, they were able to jump free of the locomotive as they saw the water start to rise. They swam to some high ground there. They're wet but in good condition." Interstate 45 in Navarro County reopened Sunday. The Texas DOT was forced to close part of the interstate near Corsicana after it was inundated with floodwaters. Meteorologists say parts of the area recorded at least 20 inches of rain since Thursday.

A reported funnel cloud caused damage off Texas State Highway 288 and Beltway 8 in the Houston area Saturday morning.

Meteorologists say the bullseye for heavy rain moves into far eastern Texas, Louisiana, Mississippi and Arkansas through Monday. Flood watches are posted from Houston to the Florida Panhandle, including the cities of New Orleans, Baton Rouge and Pensacola, Florida.