Armand Bayou watershed water levels
6 Harris County Flood Warning System gauges on 4 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 Armand Bayou at Pasadena Lake (Nasa Road 1), at 4.8 ft below top of bank.
Armand Bayou
Ordered by water surface elevation, highest first, which generally runs upstream to downstream.
| Crossing | Level | Below bank | 7-day closest | Updated |
|---|---|---|---|---|
| Space Center Boulevard | 18.41 ft | 6.5 ft | 6.4 ft | 4 hours ago |
| Genoa-Red Bluff Road | 2.20 ft | 12.8 ft | 12.2 ft | 4 hours ago |
| Pasadena Lake (Nasa Road 1) | 1.70 ft | 4.8 ft | 4.2 ft | 18 minutes ago |
Big Island Slough
| Crossing | Level | Below bank | 7-day closest | Updated |
|---|---|---|---|---|
| Fairmont Parkway | 2.01 ft | 14.9 ft | 14.4 ft | 4 hours ago |
Horsepen Creek
| Crossing | Level | Below bank | 7-day closest | Updated |
|---|---|---|---|---|
| Bay Area Boulevard | 1.92 ft | 10.9 ft | 10.4 ft | 4 hours ago |
Willow Spring Bayou
| Crossing | Level | Below bank | 7-day closest | Updated |
|---|---|---|---|---|
| Fairmont Parkway | 4.41 ft | 15.1 ft | 15.0 ft | 3 hours ago |
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.