The storm came ashore near the eastern part of the Matagorda Peninsula, about 10 miles west-southwest of Sargent Beach, Texas, at around 1:30 a.m. ET Tuesday.
Nicholas picked up strength in the Gulf of Mexico Monday night, reaching Category 1 hurricane strength with winds of 75 mph, according to the NHC.
On Monday, Texas Gov. Greg Abbott signed an emergency declaration, warning residents to be prepared for the upcoming “substantial water event.”
Abbott said that people needed to be prepared for “extreme high-water events, including flooding and potential damage caused by the rainfall.” He added that there was also the possibility that the system could spawn tornadoes.
A hurricane warning is in effect for Port O’Connor to Freeport, and a hurricane watch is in effect for Freeport to San Luis Pass, Texas, the NHC said.
After making landfall, the center of the storm is expected to move over southeastern Texas before making its way to southwestern Louisiana later Wednesday, during which it is expected to weaken, the NHC said.
State prepares for heavy downpour
In Houston, city officials and first responders were preparing for significant amounts of rain and wind.
“We are expecting anywhere between four to seven inches of rain overnight as well as some wind, which could lead to some power outages,” Mayor Sylvester Turner said.
The Houston Independent School District and Galveston Independent School District announced Monday that schools in the area would be closed Tuesday.
While the state prepared for the storm, Abbott said he had been in touch with officials along the Gulf Coast “to make sure that we’re working collaboratively, to make sure that at the local level, we will be prepared for whatever the storm may bring.”
Abbott said the state would make it through the storm as it had many others, but cautioned Texas to heed local advisories.
“It seems like every time we have heavy rain in the Houston-area there are people who do drive into high water, and they sometimes lose their vehicles, and even worse, sometimes lose their lives. Your life is the most important thing that you have,” Abbott said. “Be cautious as you travel about the Houston-area in the Harris County-area for the next few days.”
Louisiana recovery efforts threatened
A state of emergency has also been declared in Louisiana, which is still recovering from the devastating impacts of Hurricane Ida’s landfall two weeks ago.
“The most severe threat to Louisiana is in the Southwest portion of the state, where recovery from Hurricane Laura and the May flooding is ongoing,” Gov. John Bel Edwards said. “In this area, heavy rain and flash flooding are possible. However, it is also likely that all of South Louisiana will see heavy rain this week, including areas recently affected by Hurricane Ida.”
LDH reported the deaths of a 69-year-old man and an 85-year-old woman, who both died due to excessive heat during an extended power outage.
Continued restoration efforts following Ida could be slowed and some of what has already been restored could be lost for some period of time due to Nicholas, Edwards said in a briefing Monday.
With respect to preparations for Nicholas, the National Guard will stage 80 high water vehicles, 23 boats, and 15 aircraft across Southwest Louisiana and into central Louisiana by the end of the day and will remain postured for response in Southeast Louisiana if necessary, Edwards said.
CNN’s Deanna Hackney, Amy Simonson, Raja Razek, Carma Hassan, Gregory Lemos and Rebekah Ries contributed to this report.