A flood warning is in effect for the West and East Forks of the San Jacinto River as upstream stormwater run-off in Montgomery, San Jacinto, and Liberty Counties move south and southeast through the river system.

For the West Fork of the San Jacinto River at Humble (US 59)

The river crested and fell overnight, but a secondary rise and peak at near the same level as yesterday is expected through late Saturday into early morning Sunday. Minor flooding continues along the immediate river banks in the Northshore subdivision with several streets flooded. Street flooding will continue through much of the weekend in the Northshore and Belleau Woods subdivisions as well as the US 59 U-turns under the highway bridge.

For the East Fork of the San Jacinto River at FM 1485

The river is rising as run-off from Peach Creek and the upper portion of the East Fork of the San Jacinto River moves downstream. The river will exceed its banks today and rise to moderate flood levels on Saturday morning. Streets in the subdivision south of FM 1485 and on the west side of the river will begin to flood this afternoon including Riverside Dr. and Chinquapin Ln. At the current forecast, water will near the west end bridge approach to FM 1485 and may overtop the roadway.

Residents along the West and East Forks of the San Jacinto River should remain alert to rising water and changing river conditions over the weekend. Streets may become impassible due to rising water and motorist are advised to avoid flooded roadways and be aware of high-water warning signs – Turn Around Don’t Drown!

The Harris County Flood Control District's Flood Watch team will continue to check the gages and water levels in San Jacinto. Residents should remain aware of conditions near their workplaces, schools, and homes. The Flood Control District urges all residents to monitor rainfall and bayou water levels on its Harris County Regional Flood Warning System website (desktop and mobile versions) at and at the National Weather Service Advanced Hydrologic Prediction Service website at

About the Harris County Flood Control District

The Harris County Flood Control District provides flood damage reduction projects that work, with appropriate regard for community and natural values. With more than 1,500 bayous and creeks totaling approximately 2,500 miles in length, the Flood Control District accomplishes its mission by devising flood damage reduction plans, implementing the plans and maintaining the infrastructure.