Note - This operational forecast is intended for internal use. The official river forecasting agency of the Federal Government is the NWS. The NWS forecast for these locations can be found by clicking the blue hyperlink associated with each gage location. If there are any questions, please call the water control office at 1-(800)432-1208 or (314)331-8342.
✅ Forecast Date: Wednesday, 2 September 2026
| Location | Observed | Forecast | |||
|---|---|---|---|---|---|
| 06:00 | Week 1 | Week 2 | Week 3 | Week 4 | |
| 02-Sep | 09-Sep | 16-Sep | 23-Sep | 30-Sep | |
| Mississippi River | |||||
| LD 22 Flow (kcfs) | 48.3 | 42 | 40 | 38 | 37 |
| LD 22 TW | 4.71 | 4.4 | 4.3 | 4.2 | 4.2 |
| LD 24 TW | 14.16 | 13.8 | 13.7 | 13.6 | 13.5 |
| LD 25 TW | 14.00 | 13.7 | 13.5 | 13.3 | 13.3 |
| Illinois River | |||||
| Meredosia Flow (IL) (kcfs) | 31.0 | 12 | 10 | 8 | 7 |
| La Grange TW | 15.57 | 9.7 | 9.3 | 8.9 | 8.7 |
| Meredosia | 9.97 | 4.1 | 3.7 | 3.3 | 3.1 |
| Valley City | 8.54 | 3.9 | 3.5 | 3.2 | 3.0 |
| Mississippi River | |||||
| Mel Price TW | 5.28 | 3.4 | 3.1 | 3.0 | 2.8 |
| Hermann Flow (MO) (kcfs) | 43.0 | 40 | 39 | 38 | 37 |
| LD 27 Pool | 400.00 | 398.1 | 397.8 | 397.7 | 397.5 |
| LD 27 TW | 385.69 | 383.4 | 382.7 | 382.3 | 382.0 |
| St Louis | 3.58 | 1.3 | 0.6 | 0.2 | -0.1 |
| Engineers Depot | 2.60 | 0.3 | -0.4 | -0.8 | -1.1 |
| Jefferson Brks | 0.07 | -2.2 | -2.9 | -3.3 | -3.6 |
| Herculaneum | 0.96 | -1.2 | -2.0 | -2.4 | -2.7 |
| Kaskaskia River | |||||
| Nav TW | 51.80 | 49.7 | 49.0 | 48.6 | 48.3 |
| Mississippi River | |||||
| Chester | 6.43 | 4.4 | 3.6 | 3.2 | 2.9 |
| Red Rock Ldg | 10.05 | 8.2 | 7.3 | 6.9 | 6.6 |
| Grand Tower | 11.64 | 9.9 | 9.0 | 8.6 | 8.3 |
| Moccasin Springs | 10.61 | 9.0 | 8.1 | 7.7 | 7.4 |
| Cape Girardeau | 11.87 | 10.4 | 9.5 | 9.1 | 8.8 |
| Grays Pt | 11.37 | 9.5 | 8.5 | 8.0 | 7.7 |
| Thebes | 10.62 | 8.5 | 7.5 | 7.0 | 6.7 |
| Commerce | 6.43 | 4.0 | 2.9 | 2.3 | 2.1 |
| Price Ldg | 1.72 | -1.5 | -2.9 | -3.6 | -3.8 |
| Thompson Ldg | 16.40 | 12.6 | 11.0 | 10.3 | 10.1 |
| Birds Point | 12.21 | 7.1 | 5.2 | 4.2 | 4.1 |
| Ohio River | |||||
| Cairo | 15.66 | 10.5 | 8.6 | 7.6 | 7.5 |
(1) Open River (OR) conditions and
gates
are free of the water surface at the L&D.
(2) Red and bold
indicates the stage level is at or above the flood level, or at or below
the LWRP (Low Water Reference Plane). Also, when the hinge points are outside the limits during regulated pool conditions.
7-day Observed
7-day QPF
