Rainfall, River Flow Gauges, Flood Maps and Other Useful Links

 

Rainfall

Harris County Flood Warning System

Find out current and historic rainfall amounts in Harris County

 

Gauges measuring height and flow on local and state rivers and streams

National Weather Service rain and river gauges

United States Geological Survey gauges for Texas rivers

Note that while most (though not all) of our bayous and streams flow into Buffalo Bayou, they are all in the larger San Jacinto River Basin watershed. (These do not include the Brazos, Colorado or Trinity rivers, of course.) On this site, at the bottom of the page for a particular gauge, you can set up alerts to receive notices of how high the water is flowing.

Interactive Flood Map of Texas from the Texas Water Development Board

 

Water Resources Links for the Buffalo Bayou-San Jacinto River Watershed. From the US Geological Survey

Major USGS Links

 

US Geological Survey Interactive Watershed Map

Find Your Watershed

 

See also Watershed Maps

 

Real-time Data for Addicks and Barker reservoirs and dams on Buffalo Bayou

Addicks Reservoir and Dam

Barker Reservoir and Dam

 

Elevation

Topographic Map for Houston and Surrounding Areas

 

Flood Zone Maps 

Harris County Flood Education Mapping Tool

Find your flood zone where you live.

Texas Coastal Watershed Program Flood Zone Maps for coastal counties, Sept. 25, 2017

Federal Emergency Management Agency Searchable Interactive Flood Hazard Map

Federal Emergency Management Agency Flood Insurance Rate Maps through Feb. 2017

 

Texas Coastal Atlas

An interactive map showing transportation, drainage patterns, ecoregions, wetlands, green space, and more. From the Center for Texas Beaches and Shores, Texas A&M, Galveston

Coastal Atlas

 

Galveston Bay Watershed and Wetland Permit Planning Tool

Wetlands Mapping Tool, Houston Advanced Research Center (HARC)

 

Buyers Beware

Searchable real estate database of flood risk from the Center for Texas Beaches and Shores, Texas A&M, Galveston

Buyers B-Where

  

Sea Level Rise

Texas Coast

 

Temperature, Precipitation, Drought: National Oceanic and Atmospheric (NOAA) Climate at a Glance

Historical average in Houston and Texas 

 

Tides

Tide Gauge for Manchester on Buffalo Bayou and the Texas Coast

  

Water Quality

Wastewater treatment plants, hazard waste sites in Harris County

Houston Galveston Area Council Water Resources Information Map

 

Mosquitos

Mosquito-borne disease map, Harris County

 

Harvey

Map of Rainfall from Aug. 26 to Sept. 4, 2017

Animation of Hurricane Harvey inundation above and below Addicks and Barker dams, Aug-Sept. 2017, US Army Corps of Engineers

Water levels and flood hazard areas during Harvey, University of California, Davis, Center for Watershed Sciences