San Jacinto River watershed water levels

24 Harris County Flood Warning System gauges on 12 streams · readings as published

When this page was generated (Oct 20, 2026 at 10:50 AM CDT), the gauge in this watershed with the least distance to its top of bank was Houston Ship Channel at Juan Seguin Park, at 2.3 ft below top of bank.

No National Weather Service alert covering Harris County was active when this page was generated (Oct 20, 2026 at 10:50 AM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

San Jacinto River

Ordered by water surface elevation, highest first, which generally runs upstream to downstream.

Crossing	Level	Below bank	7-day closest	Updated
SH 242	76.10 ft	20.8 ft	20.7 ft	3 hours ago
US 59	42.45 ft	6.8 ft	6.5 ft	4 hours ago
Kingwood Country Club	42.36 ft	4.9 ft	4.6 ft	4 hours ago
US 90	2.20 ft	7.8 ft	7.0 ft	67 minutes ago
Rio Villa	2.04 ft	3.5 ft	2.7 ft	79 minutes ago

Caney Creek

Ordered by water surface elevation, highest first, which generally runs upstream to downstream.

Crossing	Level	Below bank	7-day closest	Updated
SH 105	150.19 ft	20.8 ft	20.8 ft	4 hours ago
FM 2090	119.86 ft	11.8 ft	11.8 ft	3 hours ago
Firetower Road	92.02 ft	12.5 ft	12.4 ft	4 hours ago
US 59	58.27 ft	20.7 ft	20.7 ft	4 hours ago

East Fork San Jacinto

Ordered by water surface elevation, highest first, which generally runs upstream to downstream.

Crossing	Level	Below bank	7-day closest	Updated
SH 105	111.53 ft	14.8 ft	14.8 ft	4 hours ago
FM 2090	70.82 ft	15.7 ft	15.6 ft	3 hours ago
FM 1485	45.98 ft	14.0 ft	14.0 ft	4 hours ago

Peach Creek

Ordered by water surface elevation, highest first, which generally runs upstream to downstream.

Crossing	Level	Below bank	7-day closest	Updated
FM 2090	83.73 ft	12.3 ft	12.2 ft	3 hours ago
Roman Forest Boulevard	56.39 ft	19.1 ft	19.0 ft	4 hours ago
SH 99	49.47 ft	18.5 ft	18.5 ft	4 hours ago

Lake Creek

Ordered by water surface elevation, highest first, which generally runs upstream to downstream.

Crossing	Level	Below bank	7-day closest	Updated
SH 149	160.83 ft	17.7 ft	17.5 ft	4 hours ago
Sendera Ranch Drive	121.02 ft	17.0 ft	16.8 ft	4 hours ago

Bens Branch

Crossing	Level	Below bank	7-day closest	Updated
Woodland Hills Drive	59.19 ft	8.8 ft	8.7 ft	4 hours ago

Boggy Bayou

Crossing	Level	Below bank	7-day closest	Updated
San Augustine Street	18.66 ft	11.1 ft	10.9 ft	3 hours ago

Buffalo Bayou

Crossing	Level	Below bank	7-day closest	Updated
Turning Basin	2.14 ft	6.9 ft	6.1 ft	88 minutes ago

Houston Ship Channel

Crossing	Level	Below bank	7-day closest	Updated
Juan Seguin Park	2.10 ft	2.3 ft	1.6 ft	76 minutes ago

Lake Houston

Crossing	Level	Below bank	7-day closest	Updated
FM 1960	42.25 ft	2.5 ft	2.2 ft	3 hours ago

Patricks Bayou

Crossing	Level	Below bank	7-day closest	Updated
East 8th Street	11.83 ft	10.0 ft	10.0 ft	3 hours ago

San Jacinto

Crossing	Level	Below bank	7-day closest	Updated
SH 99	56.56 ft	24.4 ft	24.3 ft	3 hours ago

USGS gauges in this watershed

Buffalo Bayou at Turning Basin, Houston: 2.16 ft gage height
East Fork San Jacinto River near New Caney: 46.01 ft gage height, 12.0 ft below minor flood stage
Lake Houston near Sheldon: 42.11 ft gage height
San Jacinto River at Lynchburg Ferry near Highlands: 4.08 ft gage height
San Jacinto River near Sheldon: 2.15 ft gage height, 7.8 ft below minor flood stage
West Fork San Jacinto River above Lake Houston near Porter: 56.58 ft gage height, 24.4 ft below minor flood stage
West Fork San Jacinto River near Humble: 42.44 ft gage height, 6.9 ft below minor flood stage

How to read these numbers

Level is the water surface elevation above mean sea level, not a depth, so it is only comparable between readings at the same gauge. Below bank is the distance between that elevation and the top of the channel at that crossing, using the reference Harris County publishes with each reading. Closest in 7 days is the smallest that distance has been, from hourly averages over the last week. Each gauge page has the full history.