L Susitna River near Palmer AK
USGS Site No: 15290000 • L Susitna River • Matanuska-Susitna Borough, AK
L Susitna River near Palmer AK on the L Susitna River is currently at 124 cfs (High — 75th percentile for this date) . Gage height: 2.71 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 56 | |
| 25th | Low threshold | 71 | |
| 50th (Median) | Normal (median) | 87 | |
| 75th | High threshold | 123 | |
| 95th | Very High threshold | 211 | Today: 124 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 | 126 | — |
| May 27, 2026 | 106 | — |
| May 26, 2026 | 108 | — |
| May 25, 2026 | 94 | — |
| May 24, 2026 | 66 | — |
| May 23, 2026 | 63 | — |
| May 22, 2026 | 65 | — |
| May 21, 2026 | 70 | — |
| May 20, 2026 | 63 | — |
| May 19, 2026 | 70 | — |
| May 18, 2026 | 76 | — |
| May 17, 2026 | 91 | — |
| May 16, 2026 | 111 | — |
| May 15, 2026 | 103 | — |
| Apr 20, 2026 | 24 | — |
| Apr 19, 2026 | 25 | — |
| Apr 18, 2026 | 26 | — |
| Apr 17, 2026 | 25 | — |
| Apr 16, 2026 | 24 | — |
| Apr 15, 2026 | 25 | — |
| Apr 14, 2026 | 26 | — |
| Apr 13, 2026 | 25 | — |
| Apr 12, 2026 | 24 | — |
| Apr 11, 2026 | 24 | — |
| Apr 10, 2026 | 24 | — |
| Apr 9, 2026 | 28 | — |
| Apr 8, 2026 | 24 | — |
| Apr 7, 2026 | 24 | — |
| Apr 6, 2026 | 24 | — |
| Apr 5, 2026 | 24 | — |
Station Information
- USGS Site No
- 15290000
- State
- AK
- County
- Matanuska-Susitna Borough
- Coordinates
- 61.7097, -149.2320
- Drainage Area
- 62 mi²
- Datum (ft)
- 921.0
- HUC Code
- 19020505
Flood Stage Thresholds
- Action Stage
- 6.0 ft
- Flood Stage
- 6.5 ft
- Moderate Flood
- 7.8 ft
- Major Flood
- 8.7 ft
Currently 3.79 ft below flood stage.
Recent Extremes
- Max discharge
-
2,630 cfsAug 29, 2025
- Min discharge
-
24 cfsApr 4, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Moose C near Palmer AKNormal6.1 mi · 64 cfs
-
Matanuska River at Palmer AKHigh8.7 mi · 2,120 cfs
-
Knik River near Palmer AKHigh15.6 mi · 4,500 cfs
-
Willow C near Willow AKHigh21.9 mi · 482 cfs
-
Kashwitna River near Willow AKVery High31.1 mi · 891 cfs