Shumway Arroyo
Streamflow, conditions and background by watershed segment. Data through November 1, 2026.
Data gaps and disparities
Found automatically in the gauge records behind this river, and notes from a reviewer who checked them against other sources. Gauges need at least 26 weeks of daily data to appear on the Flow tab.
Warnings (0)
No warnings.
Context (4)
Show 4 notes
- ended Discontinued gauges: 2 gauges have stopped reporting: Shumway Arroyo Near Fruitland, NM (last 1982); Shumway Arroyo Near Waterflow, NM (last 1990). Their segments rest on fewer gauges after those years.
- single gauge Middle San Juan: 51% of this segment's weeks rest on a single gauge; the segment value is that gauge in those weeks, and jumps when other gauges join or drop out.
- zero run Shumway Arroyo Near Fruitland, NM: 11 runs of 60+ days at zero flow; longest 299 days from Sep 27, 1976; 293 days from Sep 13, 1975. Usually real (a dry channel or no release), not missing data.
- zero run Shumway Arroyo Near Waterflow, NM: 3 runs of 60+ days at zero flow; longest 138 days from Oct 6, 1989; 69 days from Jun 7, 1984. Usually real (a dry channel or no release), not missing data.
Values removed (0)
A reading is removed automatically only when it is impossible (for example, a daily mean above the highest flow USGS recorded that water year). Low and zero flows are never removed: rivers here really do dry up.
None.
Gauges
Each row is one physical gauge; "published by" lists every agency copy that was merged into it.
| Gauge | Segment | Published by | First | Last | Weeks |
|---|---|---|---|---|---|
| Shumway Arroyo Near Fruitland, NM | Middle San Juan | usgs | 1974-12-30 | 1982-09-20 | 404 |
| Shumway Arroyo Near Waterflow, NM | Middle San Juan | usgs | 1974-09-09 | 1990-04-30 | 817 |