MATAGORDA, Texas -- Beryl began lashing Texas with rain and intensifying winds Sunday as coastal residents boarded up windows, left beach towns under evacuation orders and prepared for the powerful storm that has already cut a deadly path through parts of Mexico and the Caribbean. Although Beryl remained a tropical storm Sunday as it churned toward Texas, it threatened to potentially regain hurricane strength in the warm waters of the Gulf of Mexico before making landfall early Monday. The storm was projected to come ashore in the middle of the Texas coast around Matagorda Bay, an area about 100 miles south of Houston, but officials cautioned that the path could still change. Texas officials warned that the storm would cause power outages and flooding but also expressed worry that not enough coastal residents and beach vacationers in Beryl's path were heeding warnings to leave. "One of the things that kind of trigger our concern a little bit, we've looked at all of the roads leaving the coast and the maps are still green," said Texas Lt. Gov. Dan Patrick, who is serving as the state's acting governor while Gov. Greg Abbott is traveling overseas. "So we don't see many people leaving." Along the Texas coast, many residents and business owners took the typical storm precautions, but also expressed uncertainty about the storm's intensity. In Port Lavaca, Jimmy May fastened plywood over the windows of his electrical supply company and said he wasn't concerned about the possible storm surge. He recalled that his business had escaped flooding in a previous hurricane that brought a 20-foot storm surge. "In town, you know, if you're in the low-lying areas, obviously, you need to get out of there," he said. Farther down the coast in Freeport, Mark Richardson, a 64-year-old retiree, said homeowners were busy "trying to tie everything down" and worried that Beryl had people unsure about where along the Texas coast it would make landfall. He spent Sunday morning on the beach and said ocean swells were quickly rising. "The ocean is getting very angry, very fast," he said. The earliest storm to develop into a Category 5 hurricane in the Atlantic, Beryl has caused at least 11 deaths as it passed through the Caribbean on its way to Texas. The storm ripped off doors, windows and roofs with devastating winds and storm surge fueled by the Atlantic's record warmth. Three times in its one week of life, Beryl has gained 35 mph in wind speed in 24 hours or less, the official weather service definition of rapid intensification. Beryl's explosive growth into an unprecedented early whopper of a storm shows the literal hot water of the Atlantic and Caribbean, and what the Atlantic hurricane belt can expect for the rest of the storm season, experts said. Texas officials warned people along the entire coastline to prepare for possible flooding, heavy rain and wind. The hurricane warning extended from Baffin Bay, south of Corpus Christi, to Sargent, south of Houston. Beryl lurked as another potential heavy rain event for Houston, where storms in recent months have knocked out power across the nation's fourth-largest city and flooded neighborhoods. A flash flood watch was in effect for a wide swath of the Texas coast, where forecasters expected Beryl to dump as much as 10 inches of rain in some areas. Potential storm surges between 4 and 7 feet above ground level were forecast around Matagorda. The warnings extended to the same coastal areas where Hurricane Harvey came ashore in 2017 as a Category 4 hurricane, far more powerful than Beryl's expected intensity by the time the storm reaches landfall. Those looking to catch a flight out of the area could find that option all but impossible as Beryl closed in. Hundreds of flights from Houston's two major commercial airports had been delayed by midafternoon Sunday and dozens more canceled, according to FlightAware data. In Corpus Christi, officials asked visitors to cut their trips short and return home early if possible. Residents were advised to secure homes by boarding up windows if necessary and using sandbags to guard against possible flooding. Traffic was nonstop for the past three days at an Ace Hardware in the city as customers bought tarps, rope, duct tape, sandbags and generators, employee Elizabeth Landry said Saturday. "They're just worried about the wind, the rain," she said. "They're wanting to prepare just in case."

Some Texans who live along the Gulf Coast are evacuating as Tropical Storm Beryl makes its way toward the Lone Star State. The storm is expected to regain hurricane strength before making landfall. Jason Allen has the latest.