High water closes roads in Montgomery County as Houston-area flood watch remains in effect

Heavy rain flooded roads in southern Montgomery County and parts of the Houston area Tuesday, leaving several streets impassable and prompting repeated warnings for drivers to stay away from high water.

Officials said the worst of the disruption hit around The Woodlands, where runoff quickly covered roads and made travel dangerous during the afternoon rain.

Roads and closures

Montgomery County Precinct 3 Commissioner Ritch Wheeler said Lake Woodlands Drive, Research Forest Drive and Woodlands Parkway were impassable.

Harris County Precinct 4 Constable Mark Herman said water covered the westbound lanes of Texas 99 near Gosling Road. Houston TranStar also identified three high-risk flood areas near Texas 99 and Woodland Parkway, showing how quickly conditions deteriorated in the corridor.

The Montgomery County Sheriff's Office reported multiple high-water incidents on roads, especially in the southern part of the county. Officials repeatedly warned drivers not to enter flooded roadways because even shallow water can trap or sweep away vehicles.

Warnings and rainfall

A flash flood warning covered parts of Montgomery and northern Harris counties, and the Houston Chronicle reported that it was extended until 2:15 p.m. Tuesday. A broader flood watch remained in effect across the region as heavy rain continued through southeast Texas.

By 12:50 p.m., the Houston Chronicle reported that 3 to 6 inches of rain had fallen in some affected areas, with another 2 inches possible in already flooded locations.

What officials were watching

The flooding came during a wider Southeast Texas rain event tied to rounds of heavy rainfall and a possible tropical system near the coast. Officials were monitoring whether more rain would fall on already saturated ground and worsen conditions in neighborhoods and along major roads.

The risk was centered not only on flooded streets but on the possibility that additional rain could extend closures or create new high-water spots before runoff had time to clear.

What comes next

Residents and commuters in Montgomery and northern Harris counties were being told to watch for updated warnings, road reopening notices and new rainfall reports as the storm pattern continued.

The immediate outlook remained unsettled: officials were still tracking active warnings, and more rain could prolong the disruption into later Tuesday and Wednesday.