Cat 1 Hurricane Harvey Shifts from Wind to Flood Threat

Cat 1 Hurricane Harvey Shifts from Wind to Flood Threat

Cat 1 Hurricane Harvey Shifts from Wind to Flood Threat

The National Hurricane Center says parts of the Lone Star State could see "catastrophic flooding" in the coming days.

- A tide gauge in Port Lavaca, Texas, reported storm surge of 6.4 feet, the hurricane center said.

A combination of a unsafe storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline, the agency said.

Organizations such as the American Red Cross and Salvation Army are trained to respond to disasters such as Harvey, which is pounding the Texas Gulf Coast.

"Life-threatening hazards will continue from heavy rainfall over much of southeastern Texas and from storm surge along portions of the Texas coast", it warned.

While Harvey has now weakened to a tropical storm, it's walking pace over hundreds of mile square miles of low-lying coastal territory is resulting in some the highest rainfall predictions in the history of weather record-keeping, as residents and first-responders prepare themselves for the worst.

"According to information that I was provided, there's been about 20 inches of rain in the Corpus Christi area, about 16 inches of rain in the Houston area, and our biggest concern is the possibility of between 20 and 30 more inches of rain in areas ranging from Corpus Christi over to Houston", the governor said. But the rainfall amounts are already starting to add up.

"The Swift Water team would conduct search and rescue tactics during Hurricane Harvey, including rescues from those stranded [by] severe flooding", she said. It killed an estimated 600 people, mostly in ships that were sunk or went missing, according to the National Weather Service.

Despite the downgrade, Federal Emergency Management Agency (FEMA) chief Brock Long called it a "deadly inland event" as the storm progressed through the night.

Craig "Cajun" Uggen, 57, almost floods his truck as Hurricane Harvey comes ashore in Corpus Christi, Texas, US August 25, 2017.

In a sign of its lumbering movement, it then made a second landfall nearby three hours later.

The tropical storm's centre has moved to about 95km southeast of San Antonio, with maximum wind speeds of 10km/h, the National Hurricane Center said. As of 2 pm ET, Harvey was 45 miles west-northwest of Victoria, Texas.

Houston Public Media reports that several dozen homes were damaged early Saturday morning by a possible tornado. "We continue to lift up all Texans in prayer who have been impacted by this risky storm, mindful that the threat of severe storms and flash flooding remain", Sen.

Torrential rains are expected for days. The many drainage channels known as bayous that carry excess water to the Gulf were rising.

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