Hurricane Harvey. NOAA/Reuters

President Donald Trump is on the verge of facing the first non-self-inflicted crisis of his presidency — and it remains a mystery whether he's ready.

The potential crisis comes in the form of a massive hurricane gaining strength off the southeast coast of Texas in the Gulf of Mexico. Forecasters predict that Hurricane Harvey could slam the Texas coast right before the weekend as a Category 3 storm, bringing winds in excess of 125 mph and dumping more than 25 inches of rain.

"Trump facing first serious crises with Hurricane Harvey," conservative internet news mogul Matt Drudge tweeted Thursday. "130 mph winds Texas coast, 25-inches of rain Houston. It's about to get real..."

The White House press secretary, Sarah Huckabee Sanders, was questioned about the hurricane preparations of both Trump and the administration during Thursday's press briefing. She said Trump had been briefed and was keeping "a very watchful eye" on developments.

"You've got acting Secretary Elaine Duke," the acting homeland security secretary, "watching this closely, very involved in the process, along with the acting director for FEMA," she told reporters. "I think we're in great shape having Gen. Kelly sitting next to the president throughout this process."

There's "probably no better chief of staff for the president during the hurricane season," she continued, praising John Kelly. "And the president has been briefed and will continue to be updated as the storm progresses and certainly something he's very aware of and will keep a very watchful eye on and stands ready to provide resources if needed."

Trump tweeted about the storm soon after the briefing, posting links to Ready.gov, Fema.gov, and Hurricanes.gov. Attached to the tweet was a video of Trump touring the Federal Emergency Management Agency headquarters earlier this year.

"With Hurricane Harvey approaching landfall, remember, the USA is the most resilient nation on earth because we plan ahead," Trump said in a statement that was displayed at the bottom of the video. "Preparedness is an investment in our future."

Hurricane Harvey is shaping up to be the first major natural disaster of Trump's presidency.

Some of the agencies tasked with handling the administration's response are in the midst of turnover, as Duke is leading the Department of Homeland Security in an acting role after Kelly became Trump's chief of staff. Trump's nominee to lead FEMA, Brock Long, was confirmed in June, but numerous major positions in the agency remain unfilled or are occupied by acting employees.

Matt Mackowiak, a Texas-based Republican strategist who is president of the Potomac Strategy Group, said Trump was entering the situation without having previously dealt with such a disaster, something he said was "unusual for political figures."

"What's unusual about Trump is that he has, as far as I know, zero disaster-response experience," Mackowiak told Business Insider. "Now, that's true for 99.9% of individuals, but it's unusual for political figures. At some level, no matter what level you're on, you've had some sort of disaster where you live. He hasn't. So he doesn't have the perhaps working knowledge that most people would have."

—NHC Atlantic Ops (@NHC_Atlantic) August 24, 2017

Mackowiak said Trump must give the perception that he is on top of all of the developments, is concerned, and is using his platform to disseminate critical information.

"What doesn't work is sort of sitting back and hoping that it's not severe and that the state and locals will handle it," Mackowiak said.

If disaster strikes, Mackowiak said, it will be critical for Trump to "rely on experienced people" and be "very specific about what he says."

"You don't want to create a public panic, but you do want people to take it all very seriously," he said. "This is probably not something he's spent a lot of time thinking about. He's probably thought about disaster relief more in terms of terrorism with his national security briefings ... This is going to be an interesting challenge."

Donald Trump. Pool/Getty Images

The question entering the weekend, Mackowiak said, is whether Trump can "focus on an area like this in a crisis."

"This is going to be a real test of the administration," he said. "It's going to push a lot of things to the back burner. I don't know what else he has the next couple days, but he's not going to be in a position to do a lot of other things publicly. He should be staying at the White House, taking phone calls, getting briefed, talking to his Cabinet, talking to local officials, and putting his administration in a position to respond where needed."

In a column for The Washington Post earlier this month, Ron Klain, who served as chief of staff for the vice presidents Al Gore and Joe Biden, said August could be extremely dangerous for Trump and the administration, highlighting the threat of a major hurricane as a top reason.

"Would the Trump administration respond effectively?" he asked. "The president just stripped the Department of Homeland Security of its leader, was blasted by the outgoing head of hurricane forecasting for how his budget cuts could set back this work, and lacks any experience (as a senator or governor) with navigating a difficult disaster response. As a political matter, a botched hurricane response in the Gulf Coast or Florida would see Trump criticized — not by blue-state leaders he can mock or ignore — but by key members of his own coalition."