North Floodway at Llano Grande water level
NWS gauge NFLT2 · International Boundary and Water Commission · Hidalgo County · Rio Grande Valley
stage above a datum the NWS does not state · Nov 3, 2026 at 10:00 PM CST · 65 minutes ago
- Usual range
- 52.42 to 52.83 ft
- Highest since October 4, 2026
- 55.38 ft
Last 7 days
Hourly averages of the readings. The shaded band is this gauge's usual range: the middle 80% of its readings since October 4, 2026.
How to read this gauge
The number is the stage in feet on this gauge's own scale, as the NWS publishes it. The NWS gives no datum for it, so it is not a depth and can't be compared with other gauges.
Readings the NWS marks out of service are left out, and so is any single reading more than 2 ft from the readings either side of it, which is a sensor error rather than water; a newest reading that far from the one before waits for the next to agree.
International Boundary and Water Commission runs this gauge; the National Weather Service publishes its readings, which is where this site reads them.
Daily highs and lows since October 4, 2026
Other NWS-published gauges in Rio Grande Valley
| Gauge | Stage | Datum | NWS flood stage | Updated |
|---|---|---|---|---|
| Arroyo Colorado South of Mercedes | 0.46 ft | — | — | 2 hours ago |
| Arroyo Colorado at Harlingen | 4.37 ft | — | — | 2 hours ago |
| Banker Inlet to Main Floodway | 106.16 ft | — | — | 50 minutes ago |
| Main Floodway South of Weslaco | 52.60 ft | — | — | 2 hours ago |
| North Floodway Near Sebastian | 8.51 ft | — | — | 2 hours ago |
| Rio Grande Near Progreso Bridge | 57.38 ft | — | — | 2 hours ago |
| Rio Grande at Anzalduas Reservoir | 104.18 ft | — | 7.8 ft below minor flood stage | 2 hours ago |
| Rio Grande at Lower Brownsville | 2.98 ft | — | 24.0 ft below minor flood stage | 2 hours ago |
| Rio Grande near Los Ebanos | 4.40 ft | — | — | 50 minutes ago |
| Rio Grande near San Benito | 34.76 ft | — | 20.2 ft below minor flood stage | 2 hours ago |
Download the readings
north-floodway-at-llano-grande.csv (CSV): every reading from the last 90 days, 2,835 rows, with time in UTC and local time, and the reading in feet on a datum the NWS does not state.
north-floodway-at-llano-grande-daily.csv (CSV): the low and high of every day since October 4, 2026.
Source. Readings from International Boundary and Water Commission, as published by the National Weather Service. The NWS name for this gauge is “North Floodway at Llano Grande”. Recent readings are provisional and can be revised. This site is not affiliated with either.