HOUSTON—Heavy rains lashed Texas and Louisiana on Tuesday as Hurricane Nicholas weakened into a tropical storm, bringing the threat of widespread floods and power outages as it swept down the U.S. Gulf Coast.
It is the second major storm to threaten the region in recent weeks after Hurricane Ida killed more than two dozen people in August and devastated communities in Louisiana near New Orleans.
Nicholas should weaken further and become a depression by Wednesday, the National Hurricane Center (NHC) said. It could still cause life-threatening flash floods across the Deep South in the next couple of days, the agency warned.
Nicholas was about 15 miles (25 km) south-southwest of Houston by 7 a.m. Central Time, heading north-northeast with maximum sustained winds of 60 miles per hour (95 km per hour), the NHC said in a bulletin.
President Joe Biden declared an emergency for Louisiana and ordered federal assistance for local responders because of the effects of Nicholas, the White House said.
Nicholas could knock out electricity and hamper restoration efforts after Ida knocked out power in Louisiana.
Early on Tuesday, more than 95,000 customers in Louisiana had lost power, according to the website PowerOutage.us, while in the Houston area alone, more than 415,000 customers faced outages, utility CenterPoint Energy said.
Texas Governor Greg Abbott declared states of emergency in 17 counties and three cities, with boat and helicopter rescue teams being deployed or put on standby.
Crowdsourse Rescue, a disaster-response organization in Texas, said on Twitter that its swift-water teams reported no calls for rescue overnight.
“But we’ll take a mediocre night of sleep in a truck then no sleep in a boat,” it said. “Knocking on wood, but so far so good?”
Volunteers with the organization fanned out across the coastal areas to do damage assessments and found minimal debris and flooding.
Some 14 inches of rain fell in Galveston while Houston got almost six inches of rain overnight and into the morning, the National Weather Service reported.
Galveston Mayor Craig Brown told the Daily News that there was heavy street flooding in low-lying areas early Tuesday morning.
“What caught us a little by surprise was the speed of the winds,” Brown said of the 50 mph winds that blew through his city of 50,000. “They were a little heavier with more force than we thought.”
Northwest in Houston, many residents, especially on the south and southeast sections of the city, awoke to power outages, downed trees and water in their homes on Tuesday after Nicholas passed over the area.
Houston, the fourth most populous U.S. city, was devastated in 2017 when Harvey, a Category 4 hurricane, slammed Texas, dropping up to 40 inches (102 cm) of rain in some areas and killing more than 100 people.
The Houston Independent School District along with dozens of schools districts across both states canceled Tuesday classes.
The METRO in Houston resumed limited light rail and bus service on Tuesday. Hundreds of flights were canceled or delayed at airports in Corpus Christi and Houston.
The storm was expected to move slowly to the northeast throughout the day, and then turn eastward by Wednesday over Louisiana, the National Weather Service (NWS) said.
Louisiana Governor John Bel Edwards warned against flash floods triggered by the heavy rain as drainage systems were still clogged with debris from Ida and other storms.
NWS models forecast rainfall totals from Nicholas from 16 inches in coastal parts of Texas to 20 inches in some spots. Its northeast sweep was expected to pummel parts of south-central Louisiana and southern Mississippi with up to 10 inches of rain.
By Erwin Seba