A flash flood warning is in effect for Northeast Harris County as heavy rainfall of 3-5 inches fell overnight across a large portion of the San Jacinto River watershed on top of already wet grounds.

The rainfall will lead to significant rises and possible flooding along the East Fork of the San Jacinto River from Plum Grove downstream to south of FM 1485. Roads near the East Fork of the San Jacinto River in these communities will likely be impacted by the projected rise in water levels and access to elevated structures may become cut-off. The river is expected to rise to moderate flood threshold levels today at FM 1485 and may remain near or above the flood stage into early next week. 

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. Streets in the subdivision south of FM 1485 and on the west side of the river will experience flooding 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: harriscountyfws.org. Residents may also create an account and sign up for rainfall and water level alerts at www.fwsalerts.org. FWS Alerts will allow residents to customize which sensors they wish to receive alerts from and choose to receive them via text, email, or both. Be sure to also follow us on Twitter @HCFCD for updates. 


The Harris County Flood Control District (HCFCD) 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.