Ahtanum Creek at Union Gap
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 4:30 AM PST 12/18/25
Status: Not Defined
Stage: 5.16 ft
Flow: 0.308 kcfs
Forecast
Forecast not available for this location.
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 4:30 AM 12/18 | 5.16 | 0.308 |
| 4:15 AM 12/18 | 5.16 | 0.308 |
| 4:00 AM 12/18 | 5.16 | 0.308 |
| 3:45 AM 12/18 | 5.17 | 0.31 |
| 3:30 AM 12/18 | 5.18 | 0.311 |
| 3:15 AM 12/18 | 5.18 | 0.311 |
| 3:00 AM 12/18 | 5.19 | 0.313 |
| 2:45 AM 12/18 | 5.2 | 0.315 |
| 2:30 AM 12/18 | 5.2 | 0.315 |
| 2:15 AM 12/18 | 5.2 | 0.315 |
| 2:00 AM 12/18 | 5.22 | 0.319 |
| 1:45 AM 12/18 | 5.2 | 0.315 |
| 1:30 AM 12/18 | 5.21 | 0.317 |
| 1:15 AM 12/18 | 5.22 | 0.319 |
| 1:00 AM 12/18 | 5.21 | 0.317 |
| 12:45 AM 12/18 | 5.23 | 0.32 |
| 12:30 AM 12/18 | 5.22 | 0.319 |
| 12:15 AM 12/18 | 5.24 | 0.322 |
| 12:00 AM 12/18 | 5.22 | 0.319 |
| 11:45 PM 12/17 | 5.22 | 0.319 |
| 11:30 PM 12/17 | 5.23 | 0.32 |
| 11:15 PM 12/17 | 5.23 | 0.32 |
| 11:00 PM 12/17 | 5.23 | 0.32 |
| 10:45 PM 12/17 | 5.23 | 0.32 |
| 10:30 PM 12/17 | 5.23 | 0.32 |
| 10:15 PM 12/17 | 5.22 | 0.319 |
| 10:00 PM 12/17 | 5.22 | 0.319 |
| 9:45 PM 12/17 | 5.21 | 0.317 |
| 9:30 PM 12/17 | 5.21 | 0.317 |
| 9:15 PM 12/17 | 5.21 | 0.317 |
No flood impact data available for this location.
| Date | Stage (ft) |
|---|---|
| Jan 16, 1974 | 10.36 |
Data provided by the National Weather Service.
