A power generator tips in front of Texas' Christus Spohn Hospital Corpus Christi-Shoreline as Hurricane Harvey hits on Friday.

A woman is helped to a bus as she and others are evacuated as Hurricane Harvey starts to make landfall on Friday in Corpus Christi, Texas.

People rest while waiting to board a bus headed for San Antonio at an evacuation center in Corpus Christi, Texas, on Friday. Hurricane Harvey had strengthened to a Category 3 hurricane by Friday afternoon.

Guadalupe Guerra rests her head on the shoulder of her husband, Ray, while waiting to board a bus headed for San Antonio at an evacuation center in Corpus Christi, Texas, on Friday.

John Faraone shakes hands with Corpus Christi fire department Capt. Andres Ayala, right, while waiting to board a bus headed for San Antonio at an evacuation center in Corpus Christi, Texas, on Friday.

A man rests while waiting to board a bus headed for San Antonio at an evacuation center in Corpus Christi, Texas, on Friday. Hundreds of residents from the Corpus Christi area boarded buses to be transported to a shelter in San Antonio as Hurricane Harvey approached.

A family is helped to a bus as they are evacuated as the outer bands of Hurricane Harvey begin to make landfall on Friday in Corpus Christi, Texas.

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, Aug. 25, 2017. Conditions deteriorated Friday along the Texas Gulf Coast as Hurricane Harvey strengthened and crawled toward the state, with forecasters warning that evacuations and preparations "should be rushed to completion." (Nick Wagner /Austin American-Statesman via AP)

Christopher Beafneaux, left, Ernesto Villarreal, center, and Roman Lopez board up windows of a business in Galveston, Texas, as Hurricane Harvey intensifies in the Gulf of Mexico on Friday.

Michael Brennan, branch chief at the National Hurricane Center, gives an update on Hurricane Harvey as it moves toward the Texas coast on Friday in Miami.

City workers pull down a canvas covering as the outer bands of Hurricane Harvey move closer Friday in Corpus Christi, Texas.

This image of Hurricane Harvey was taken by a NOAA satellite at 10:07 a.m. EDT on Friday. It clearly showed the storm’s eye as the storm nears Texas.

Matt Looingvill struggles with his umbrella in Corpus Christi as Hurricane Harvey approaches.