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The linked gauge for Lake Sonoma reported 2.04 ft at its latest stored observation on Oct 10, 2026, on a falling 30-day trend (-0.77 ft).
Coastal Flood Advisory issued October 10 at 2:47PM PDT until October 14 at 4:00PM PDT by NWS San Francisco CA
Local gage height: 2.04 ft
-0.77 ft net change over past 30 days
Verified freshwater recreation waterbody
Refreshing (60–70°F) · Cool swim · Moderate comfort
RUSSIAN R A DIGGER BEND NR HEALDSBURG CA · Oct 10, 1:15 PM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Fri, Oct 9, 2026 | 1322.85 | +1320.74 ft | Provisional |
| Fri, Oct 9, 2026 | 2.11 | -1320.76 ft | Provisional |
| Thu, Oct 8, 2026 | 1322.87 | +1320.74 ft | Provisional |
| Thu, Oct 8, 2026 | 2.13 | -0.03 ft | Provisional |
| Wed, Oct 7, 2026 | 2.16 | -1320.74 ft | Provisional |
| Wed, Oct 7, 2026 | 1322.90 | -0.01 ft | Provisional |
| Tue, Oct 6, 2026 | 1322.91 | +1320.74 ft | Provisional |
| Tue, Oct 6, 2026 | 2.17 | -0.04 ft | Provisional |
| Mon, Oct 5, 2026 | 2.21 | -1320.74 ft | Provisional |
| Mon, Oct 5, 2026 | 1322.95 | -0.02 ft | Provisional |
| Sun, Oct 4, 2026 | 1322.97 | +1320.74 ft | Provisional |
| Sun, Oct 4, 2026 | 2.23 | -1320.77 ft | Provisional |
| Sat, Oct 3, 2026 | 1323.00 | +1320.74 ft | Provisional |
| Sat, Oct 3, 2026 | 2.26 | — | Provisional |
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Fair for swimming (60/100), from 5 available inputs. Supporting this: 0% chance of precipitation. Wind 8 mph from the northwest. Working against it: Air temperature 56°F. Confidence is moderate (75%) because some inputs are unavailable or older than ideal.