Updated 5:57 p.m., Sept. 19

Fort Bend County's flood warning has been extended to 1:30 a.m. Sept. 20, county officials shared in an Office of Emergency Management Facebook post.

Flooding is ongoing and may be slow to recede on roads and higways Travel is discouraged, especially in the dark, the post said.

Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage areas and low-lying areas.

County officials with the Office of Emergency Management said in a Facebook post to expect street flooding due to excessive rainfall. As of 1:15 p.m., ABC 13's Accuweather Forecast shows heavy rainfall in Fort Bend County, especially in the Sugar Land, Missouri City and Richmond areas.

County officials said some locations likely to experience flooding include Addicks Park Ten, Brookshire, East Bernard, Eldridge-West Oaks, First Colony, Fresno, Fulshear, Katy, Meadows Place, Mission Bend, Missouri City, Pecan Grove, Pleak, Richmond, Rosenberg, Sealy, Stafford, Sugar Land, Townewest and Wallis.

Officials urge those in the area to shelter themselves in place and stay off the roadways. Those who are on the road should use extreme caution while driving.

As of about 12:30 p.m. creeks, streams and rivers have plenty of remaining capacity. Flooded roadways are the primary concern. In the post, the Office of Emergency Management said they cannot report roads closed by flash flooding because road flooding occurs so quickly and roads can drain almost as quickly as they flood.

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