WATCH: 8-Foot-Long Alligators Spotted Swimming In Floodwaters In Texas Backyard

A video of two alligators swimming in the backyard of a Texas home after Hurricane Harvey has been doing the rounds on the internet.

Arlene Kelsch who lived near Lake Olympia, Texas, found two alligators that had come into the deep floodwaters in her backyard on Aug. 27.

She had spotted the first alligator a day before, and posted pictures of the gator swimming in the water on social media with the caption on Instagram reading: “ Houston's Hurricane HARVEY brought me a visitor. ”

When she went to check on it the next day, she found it to have relocated to another part of the yard. To her surprise, there was a second alligator in the waters, swimming closer to her than the first. Kelsch posted a video of the sighting on Facebook and showed the gap in her fence from where the reptiles may have gotten in.

“And now it looks like it’s not only him, but now him,” she said, showing the second gator just steps away from her. “So, not too far from just climbing on into the backyard and getting right here to the patio.”

"I went to check on him and saw he had moved to another part of my backyard...but it wasn't the same alligator! That's when I see two swimming around our yard," Kelsch told Chron.com over email. "Holy crap was my reaction. I felt relatively safe seeing them; it's kind of cool. As long as I don't open my door, I'm fine, but it's still a little creepy."

Kelsch told CBS News that she had never seen alligators that big before and estimated the length to be about 8 feet.

"It's a good reminder that people shouldn't just play around in the water, which sometimes they do," Kelsch said. "When water starts to go down they may stay in our backyard," she said.

Texas officials warned residents to be on the lookout for alligators and other displaced wildlife due to the storm. During the heavy rain, the Fort Bend County Sheriff's Office tweeted "Gators and flooding advice via @txgatorsquad: Expect them to be displaced. Simply looking for higher ground. Leave alone until water recedes." Kelsch said she would follow directory and wait for sometime before she reported the gators to authorities.

CBS reported that the alligators were not in sight when Kelsch left her house when a mandatory evacuation order was issued in the area.

The environmental organization Texas Parks and Wildlife on its Facebook page also said: "During floods, alligators may disperse into areas where they aren't normally observed. Alligators are wary of people but keep your distance. Never approach, harass or feed an alligator. When water levels recede, the alligator will likely disappear as well."

“Gators aren’t too uncommon,” Kelsch told Inside Edition. She explained her backyard faced Lake Olympia which led to baby alligators coming into her neighborhood in the spring.