Cedar Bayou at I-10 near Mont Belvieu water level
USGS gauge 08067505 · Harris County · Cedar Bayou watershed · NWS gauge MBVT2
gage height, Oct 20, 2026 at 11:50 AM CDT · 15 minutes ago
- Below NWS minor flood stage
- 11.1 ft
- NWS action stage
- 8.0 ft
- NWS minor flood stage
- 13.0 ft
- NWS moderate flood stage
- 18.5 ft
- NWS major flood stage
- 20.5 ft
- Usual range
- 0.92 to 2.76 ft
USGS marks recent readings as provisional: they can be revised after review.
- Tsunami Warning — issued Oct 20, 2026 at 11:31 AM CDT, expires Oct 20, 2026 at 12:31 PM CDT.
TEST Tsunami Warning issued October 20 at 12:31PM EDT until October 20 at 1:31PM EDT by NWS National Tsunami Warning Center
Text as issued by NWS Houston/Galveston.
Last 7 days
Hourly averages of USGS readings. The shaded band is this gauge's usual range: the middle 80% of its readings since September 11, 2026.
How to read this gauge
Gage height is the height of the water surface above the gauge's zero point. This gauge's zero is set at 0 ft NAVD88, so its gage height is the water surface elevation above that datum. It is not a water depth.
The flood stages are the National Weather Service's, on the same scale as the gage height; they are the NWS's references for this location, not estimates made here.
Daily highs and lows since September 11, 2026
In past storms
| Storm | Peak | Peak time | Rise | Compared with its record |
|---|---|---|---|---|
| October 1–2, 2026 | 3.47 ft | Oct 1, 2026 at 8:05 AM CDT | 0.0 ft | — |
Harris County gauge nearby
Smith Gully at SH146, 0.8 mi away, read 10.14 ft at Oct 20, 2026 at 11:34 AM CDT, 17.1 ft below its top of bank. Both gauges report water surface elevation.
Download the readings
cedar-bayou-at-i-10-near-mont-belvieu.csv (CSV): every reading stored for this gauge since September 11, 2026, 3,689 rows, with time in UTC and Central, gage height in feet, and the USGS approval status.
Source. Gage height from the U.S. Geological Survey; flood stages and historic crests from the NWS National Water Prediction Service. This site is not affiliated with either agency.