(NEW YORK) — Several flash flood emergencies continued to hit Gulf states Thursday night into Friday morning as the remnants of Tropical Storm Arthur, the first named storm of the Atlantic hurricane season, wreaked havoc, resulting in at least one death and serious damage in several cities.

And the forecast shows more heavy rain and extreme weather heading toward the region this weekend.

In Louisiana, Gov. Jeff Landry declared a statewide emergency in response to the storm, citing widespread rainfall, severe storms and flooding concerns across the state.

The emergency order follows reports of tornadoes and more than a foot of rain in some areas over a 24-hour period. State officials said the storm has caused dangerous conditions, including flooding, downed trees and damage to homes and businesses.

A flash flood warning in Dallas escalated Friday to “considerable” with 2 inches per hour rainfall rates and at least 4 inches of rain fallen so far, according to the National Weather Service.

The city’s emergency management department reported that multiple roads in downtown Dallas were impassable due to high water, especially under overpasses. 

Several flash floods took place overnight Thursday in Seminary and Sanford, Louisiana, where homes and businesses were taking in water due to more than 10 inches of rainfall, according to the NWS.

Water rescues took place overnight as vehicles were stranded and left in flood waters. 

Parts of Louisiana reported more than 20 inches of rainfall, according to the NWS. Plaucheville and Moreauville were hit especially hard, with more than 100 homes flooded, NWS noted.

Some cars in these neighborhoods were seen floating down roads. 

Meanwhile, the Mississippi Emergency Management Agency said crews were at the scene of the Anchor Lake Dam, located near the city of Carriere, in southern Mississippi, to monitor the conditions there but reported the dam “has not been breached” and was functioning as designed.

However, about 30 homes had been evacuated as a precautionary measure.

In a social media post Thursday, Mississippi Gov. Tate Reeves said the dam was being monitored.

“At this time, according to MDEQ, the system is functioning as designed – water is flowing through the primary and auxiliary spillways. However, there is very little storage capacity remaining and there is additional precipitation predicted. If that happens, it could quickly overwhelm the spillways and compromise the structure,” he said.

Reeves also said a county road crew worker was killed during cleanup operations in Franklin County, in southwestern Mississippi.

The Pearl River County Office of Emergency Services said in an update late Thursday that the Mississippi Department of Environmental Quality had identified areas of erosion around the dam caused by the recent heavy rainfall but “expressed a high level of confidence in the dam’s structural integrity.”

The agency lifted an evacuation order for homes near the dam later Thursday night, but officials urged residents to pay attention to alerts.

Earlier, the NWS said a flash flood emergency was issued for Anchor Lake Dam and areas downstream on the East Hobolochitto Creek.

The NWS had earlier reported that the Anchor Lake Dam had failed, citing local emergency management, though it later issued an update that the dam “is being monitored for possible failure.”

A rare High Risk, level 4 of 4, for life-threatening flood potential was in place over southern Mississippi, southern Alabama and western Florida panhandle along the central Gulf Coast Thursday, the NWS said. 

Historically, a third of all flood-related fatalities and 80% of all flood-related damages occur in such high-risk areas, according to NWS data.

On Friday, the NWS issued a level 3 of 4 flash flood risk in place for parts of Louisiana, Mississippi, Alabama and the Florida panhandle, as rainfall rates of 2 to 3 inches per hour are possible. 

A flood watch extends from eastern Louisiana through central Georgia through Friday.

Forecasters are also watching the soil conditions in these areas.

Since some locations saw over a foot of rain in the last 24 hours, any additional heavy rain on the ground will quickly lead to heightened flash flood risks, according to the NWS.

One of the reasons for the continuing flood threats across the South is how incredibly moist the atmosphere is overhead, which is translating into dangerous heat indices. 

Feels-like temperatures are soaring above 110 degrees from Texas to Florida. 

New Orleans is under a heat advisory today for heat indices up to 110, Houston up to 112 and Corpus Christi up to 114. 

Editor’s note: This story has been updated to reflect that the Anchor Lake Dam has not failed, as previously reported by the National Weather Service, and to correct the spelling of the Anchor Lake Dam. 

ABC News’ Jason Volack and Jack Moore contributed to this report.

Copyright © 2026, ABC Audio. All rights reserved.

(KNOX COUNTY, Ohio) — A series of phone calls from a concerned mother helped set in motion what turned out to be a nationwide investigation that uncovered an alleged plot to attack the UFC Freedom 250 event at the White House last weekend and led to the arrest of one of the suspects, according to authorities.

ABC News obtained phone calls made to the Knox County Sheriff’s Office in Ohio, including one by the mother of 19-year-old Tycen Proper, whom federal prosecutors have charged with conspiring against the United States, attempted murder of an officer of the U.S., and firearms crimes in connection with the alleged plot.

Authorities said Proper’s mother first called her cousin, who happens to be the chief deputy of the sheriff’s office, on June 10 — just four days before the White House event was set to take place. The deputy chief later called the dispatch center to describe his conversation with Proper’s mother and asked if a Danville, Ohio, police officer was available to go to her house and talk with her, according to the recordings obtained by ABC News.

“They are having some issues with their son, and I think, I don’t think anybody’s in immediate danger, as in this second, but I know she has concerns with weapons and ammo, and particularly a mindset that her oldest boy is in right now,” the cousin said.

“She’s probably going to call you,” the cousin added, “But in case she doesn’t, maybe dispatch him [a Danville police officer] up there right away so that he can get a handle on what’s going on. She called me on my phone all panicky, and I’m like, ‘Well, I’m at home, there’s nothing I can do, but I’ll call and get somebody on the way.'”

The dispatcher immediately issued a radio call to send an officer to Proper’s home, saying that the mother had “concerns about her son and having problems with him. She did mention something about guns and ammo and wanting somebody to check out,” according to the call recording.

A short time later, the mother called dispatch and said she wanted to file a report about her son to have it on record. The dispatcher asked if her son was there.

“Yes, we just got all of his guns and ammo out of his room and put it, got it out off our property. He just came inside and he’s probably going to discover it’s not in his room,” Proper’s mother replied.

“What’s going on, though? Is he like, is he suicidal? What’s going on?” the dispatcher asked.

“Oh no, he’s just … I don’t … we don’t even know what he’s wanting to do. He’s wanting to leave this weekend and go with a group of people to help, like, fight the corrupt government,” Proper’s mother replied, according to the call recording.

By the end of the evening, Proper had been taken to Knox Community Hospital for an emergency medical admission, according to police records. Those records indicate he had a history of suicidal ideations.

According to body camera footage from the Knox County Sheriff’s Office, also obtained by ABC News, after Proper left with deputies, his mother continued sharing her concerns with authorities.

“He’s texting somebody. If you go ahead and get a hold of his phone or his text messages, it’s all in there,” she tells authorities, according to the body camera footage. “It’s all on his phone. I saw him on Google Maps, he had a little pin dropped in it. I saw on Google maps, Washington, D.C.”

Describing a conversation to police she said she had with her son, she said he told her, “It’s a hit-and-a-run type of thing. I’m, like, Oh, that doesn’t sound good.”

The following day, the Knox County Sheriff’s Office contacted the FBI, which searched Proper’s iPhone, according to charging documents.

“During a preliminary search of the device, investigators observed chats on Signal groups that laid out detailed plans to conduct an attack in Washington D.C. with several unidentified confederates,” charging documents stated. “In the chat, detailed imagery of the National Capitol Region and maps of the area were shared to a group of which PROPER was a member, highlighting sniper locations, potential drone launch locations, and other detailed tactical planning.”

Later that day, investigators interviewed Proper at the medical facility where he had been taken where he “admitted to planning with others a coordinated attack against the United States government during the UFC event scheduled to take place on the White House lawn in Washington, D.C., on Sunday, June 14, 2026,” according to the charging documents.

The phone calls from Proper’s mother provide insight into what began as a local police investigation and quickly turned into a nationwide investigation involving the FBI, Secret Service and ATF that resulted in the arrests of five people in four states, including Proper.

“My client takes the allegations against him very seriously and we are going to take the case one step, and one day, at a time as we move the case forward,” Joseph Patituce, attorney for Proper, said in a statement to ABC News.

According to police records obtained by ABC News, the guns, ammunition and other tactical gear that was taken from Tycen Proper’s room by his family was located at the home of his grandfather and turned over voluntarily to the to the Knox County Sheriff’s Office for safekeeping. Those items would eventually be the subject of a federal search and seizure warrant.

Authorities are still working to identify and locate other people whom they say may have been involved in the alleged plot.

Copyright © 2026, ABC Audio. All rights reserved.