Rock Island Dam Pp North Hw level history
In the 346 days we have on record (Nov 4, 2025 to Oct 15, 2026), the highest level was 612.83 ft on Mar 23, 2026 and the lowest was 610.75 ft on Dec 25, 2025.
Rock Island Dam Pp North Hw Water Level Today
Current elevation 611.76 ft
▼ 0.22 ft in 24 h▼ 0.24 ft in 7 days
Last reported Oct 15, 2026, 2:15 PM PDT. This reading is not current.
As of Oct 15, 2026, 2:15 PM PDT, Rock Island Dam Pp North Hw is at 611.76 ft. The level has fallen 0.24 ft over the last 7 days.
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Rock Island Dam Pp North Hw level history
Level
| Date | Elevation | Daily change | Storage |
|---|---|---|---|
| Oct 15, 2026 | 611.76 ft | −0.22 ft | — |
| Oct 14, 2026 | 611.98 ft | +0.01 ft | — |
| Oct 13, 2026 | 611.97 ft | −0.21 ft | — |
| Oct 12, 2026 | 612.18 ft | +0.17 ft | — |
| Oct 11, 2026 | 612.01 ft | −0.14 ft | — |
| Oct 10, 2026 | 612.15 ft | +0.26 ft | — |
| Oct 9, 2026 | 611.89 ft | −0.11 ft | — |
| Oct 8, 2026 | 612.00 ft | −0.06 ft | — |
| Oct 7, 2026 | 612.06 ft | −0.10 ft | — |
| Oct 6, 2026 | 612.16 ft | +0.32 ft | — |
| Oct 5, 2026 | 611.84 ft | −0.26 ft | — |
| Oct 4, 2026 | 612.10 ft | +0.03 ft | — |
| Oct 3, 2026 | 612.07 ft | +0.50 ft | — |
| Oct 2, 2026 | 611.57 ft | −0.35 ft | — |
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Lakes near Rock Island Dam Pp North Hw
Soap Lake 29 mi · 1,068.34 ft Lenore Lake 30 mi · 1,076.64 ft Lake Chelan 34 mi · 1,092.93 ft Moses Lake 40 mi · 1,045.58 ft South Fork Tolt Reservoir 78 mi · 1,717.13 ft Howard 79 mi · 1,111.09 ft
All Washington lake levels FAQ
What is the Rock Island Dam Pp North Hw water level today?
611.76 ft as of Oct 15, 2026, 2:15 PM PDT, reported by the U.S. Geological Survey.
How often is this page updated?
Every 3 hours. The gauge reports several times a day.
What is the highest and lowest level of Rock Island Dam Pp North Hw?
In the period we have (since Nov 4, 2025): 612.83 ft and 610.75 ft.
Data: U.S. Geological Survey, gauge 12462550 (official page). Provisional data, subject to revision. For information only. Not for navigation or flood safety decisions. Check the official source. LakeLevelHQ is not affiliated with any government agency.