SNAKE--ICE HARBOR DAM (IHDW1)
| Observed | Forecast/Trend Issued: 2026-09-21 08:53 PDT | ||
| Date/Time (PDT) | Inflow | Date/Time (PDT) | Inflow |
| 2026-09-21 00:00 | 17600 | 2026-09-21 23:00 | 19476.54 |
| 2026-09-20 00:00 | 19100 | 2026-09-22 05:00 | 19855.75 |
| 2026-09-19 00:00 | 19900 | 2026-09-22 11:00 | 19574.59 |
| 2026-09-18 00:00 | 17700 | 2026-09-22 17:00 | 19255.48 |
| 2026-09-17 00:00 | 20000 | 2026-09-22 23:00 | 18951.31 |
| 2026-09-16 00:00 | 21600 | 2026-09-23 05:00 | 18889.61 |
| 2026-09-15 00:00 | 21300 | 2026-09-23 11:00 | 18840.75 |
| 2026-09-14 00:00 | 19000 | 2026-09-23 17:00 | 18797.66 |
| 2026-09-13 00:00 | 21400 | 2026-09-23 23:00 | 18762.18 |
| 2026-09-12 00:00 | 25200 | 2026-09-24 05:00 | 18724.27 |
| 2026-09-11 00:00 | 26800 | 2026-09-24 11:00 | 18688.35 |
| 2026-09-24 17:00 | 18655.39 | ||
| 2026-09-24 23:00 | 18629.67 | ||
| 2026-09-25 05:00 | 18601.41 | ||
| 2026-09-25 11:00 | 18576.39 | ||
| 2026-09-25 17:00 | 18552.85 | ||
| 2026-09-25 23:00 | 18538.34 | ||
| 2026-09-26 05:00 | 18523.71 | ||
| 2026-09-26 11:00 | 18512.92 | ||
| 2026-09-26 17:00 | 18503.13 | ||
| 2026-09-26 23:00 | 18501.19 | ||
| 2026-09-27 05:00 | 18496.27 | ||
| 2026-09-27 11:00 | 18488.59 | ||
| 2026-09-27 17:00 | 18475.92 | ||
| 2026-09-27 23:00 | 18465.79 | ||
| 2026-09-28 05:00 | 18452.23 | ||
| 2026-09-28 11:00 | 18439.71 | ||
| 2026-09-28 17:00 | 18425.65 | ||
| 2026-09-28 23:00 | 18416.22 | ||
| 2026-09-29 05:00 | 18404.21 | ||
| 2026-09-29 11:00 | 18393.45 | ||
| 2026-09-29 17:00 | 18381.76 | ||
| 2026-09-29 23:00 | 18373.6 | ||
| 2026-09-30 05:00 | 18360.25 | ||
| 2026-09-30 11:00 | 18346.67 | ||
| 2026-09-30 17:00 | 18332.88 | ||
| 2026-09-30 23:00 | 18323.63 | ||
| 2026-10-01 05:00 | 18309.86 | ||