Heavy rain could bring localized flooding, forecasters warn

A flood watch remains in effect across parts of southeast and south-central Texas through Monday evening, with heavy rainfall expected to cause potential flooding in low-lying and urban areas.

Kyle Ruso

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Kyle Ruso

Published 

May 23, 2026

Heavy rain could bring localized flooding, forecasters warn

Galveston Island, Montgomery County, and nearby regions are included in a flood watch that remains in effect through Monday evening for parts of southeast Texas, as forecasts warn of heavy rainfall and possible flooding.

The National Weather Service said additional rainfall totals of 1 to 3 inches are likely, with isolated places perhaps seeing 4 to 6 inches, particularly on the southern part of the region.

Rain rates could reach 3 to 4 inches per hour during the worst downpours, increasing the risk of flash floods.

The watch encompasses a wide swath of southeast Texas, including Harris County, Fort Bend County, Brazoria County, and Chambers County, as well as coastal and inland areas from the Bolivar Peninsula to Wharton County.

Forecasters warned extra runoff could lead to rising water levels in rivers, creeks, and streams, along with floods in low-lying and flood-prone areas. Furthermore, places in cities with poor drainage are more vulnerable.

The weather agency warned that flooding is possible in poorly drained areas and urban areas, and urged citizens to stay vigilant as conditions change.

Rain bands are moving through the region, and officials are warning motorists to stay off flooded streets and to watch local forecasts.

Depending on how weather conditions evolve, the flood watch is expected to remain in effect until Monday evening.

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