Heavy rains, flash flooding possible this weekend near Houston-Galveston area from Tropical Depression 8

Current models project the storm will track south of Seabrook. (Courtesy City of Seabrook)
Current models project the storm will track south of Seabrook. (Courtesy City of Seabrook)

Current models project the storm will track south of Seabrook. (Courtesy City of Seabrook)

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Rains and flash flooding are the main concerns along coastal areas, as well as gusty winds and elevated tides. (Courtesy National Weather Service)

Tropical Depression 8 could cause heavy rains and flash flooding along coasts near the Houston-Galveston area July 24 and 25, meteorologists said July 23.

The storm, known as TD8, is forecast to become Tropical Storm Hanna as it moves across the Gulf toward the Texas coast, said Dan Reilly, warning coordination meteorologist for the National Weather Service, in a July 23 email. Rains and flash flooding are the main concerns along coastal areas, as well as gusty winds and elevated tides, per the email.

The greatest chance of tropical storm-force winds, at maximum speeds of 35 miles per hour, will be around Matagorda Bay, according to slides in Reilly’s email. Matagorda Bay is roughly 100 miles from both Houston and Galveston.

The disturbance developed into a tropical depression during the early morning hours of July 23, Reilly wrote. Tropical storm watches are in effect for much of the Texas coast, with the storm expected to make landfall July 25. However, chances of tropical storm-force winds are no higher than 20% for the Houston-Galveston area: chances are between 5% and 10% from High Island to Galveston Bay and 10% to 20% from Galveston to Matagorda.

The winds could occur the evening of July 24 or the morning of July 25, per Reilly’s email. Experts are still uncertain of the storm’s track and intensity. The storm is considered weak but becoming slightly better organized, he wrote.



Seabrook’s office of emergency management and essential city personnel are closely monitoring TD8, although current models project the storm will track south of Seabrook, according to a city of Seabrook news release. The primary threat for the Houston-Galveston region will be heavy rainfall with the potential for flooding, particularly Friday and Saturday, the release said.

For more information, visit www.weather.gov/hgx.

By Colleen Ferguson
A native central New Yorker, Colleen Ferguson worked as an editorial intern with the Cy-Fair and Lake Houston | Humble | Kingwood editions of Community Impact before joining the Bay Area team in 2020. Colleen graduated from Syracuse University in 2019, where she worked for the campus's independent student newspaper The Daily Orange, with a degree in Newspaper and Online Journalism from the S.I. Newhouse School of Public Communications and a degree in Spanish language and culture. Colleen previously interned with The Journal News/lohud, where she covered the commute in the greater New York City area.

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