South Grand River at Archie, MO
USGS Site No: 06921590 • South Grand River • Cass County, MO
South Grand River at Archie, MO on the South Grand River is currently at 776 cfs (High — 79th percentile for this date) . Gage height: 7.71 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 12 | |
| 25th | Low threshold | 24 | |
| 50th (Median) | Normal (median) | 88 | |
| 75th | High threshold | 330 | |
| 95th | Very High threshold | 2,580 | Today: 776 cfs |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 115 | — |
| May 27, 2026 | 82 | — |
| May 26, 2026 | 105 | — |
| May 25, 2026 | 143 | — |
| May 24, 2026 | 206 | — |
| May 23, 2026 | 313 | — |
| May 22, 2026 | 393 | — |
| May 21, 2026 | 543 | — |
| May 20, 2026 | 1,450 | — |
| May 19, 2026 | 8,600 | — |
| May 18, 2026 | 1,180 | — |
| May 17, 2026 | 39 | — |
| May 16, 2026 | 44 | — |
| May 15, 2026 | 46 | — |
| Apr 20, 2026 | 250 | — |
| Apr 19, 2026 | 411 | — |
| Apr 18, 2026 | 1,170 | — |
| Apr 17, 2026 | 481 | — |
| Apr 16, 2026 | 630 | — |
| Apr 15, 2026 | 786 | — |
| Apr 14, 2026 | 4,000 | — |
| Apr 13, 2026 | 1,490 | — |
| Apr 12, 2026 | 923 | — |
| Apr 11, 2026 | 973 | — |
| Apr 10, 2026 | 2,060 | — |
| Apr 9, 2026 | 84 | — |
| Apr 8, 2026 | 97 | — |
| Apr 7, 2026 | 117 | — |
| Apr 6, 2026 | 148 | — |
| Apr 5, 2026 | 211 | — |
Station Information
- USGS Site No
- 06921590
- State
- MO
- County
- Cass County
- Coordinates
- 38.4916, -94.3442
- Drainage Area
- 356 mi²
- Datum (ft)
- 767.4
- HUC Code
- 10290108
Recent Extremes
- Max discharge
-
8,600 cfsMay 19, 2026
- Min discharge
-
3 cfsNov 19, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
South Grand River at Urich, MOVery High18.6 mi · 4,040 cfs
-
Big Creek Near Blairstown, MOHigh20.9 mi · 377 cfs
-
Marais Des Cygnes River near KS-MO St Line, KSNormal23.8 mi · 7,010 cfs
-
Marais Des Cygnes River at LA Cygne, KSHigh25.3 mi · 7,860 cfs
-
Blue River at Kenneth Road, Overland Park, KSHigh28.2 mi · 117 cfs