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The linked gauge for Lake Michigan - Wisconsin Shoreline reported 5.51 ft at its latest stored observation on Oct 10, 2026, on a falling 30-day trend (-0.29 ft).
Small Craft Advisory issued October 10 at 2:44PM CDT until October 11 at 1:00AM CDT by NWS Milwaukee/Sullivan WI
Local gage height: 5.51 ft
-0.29 ft net change over past 30 days
Deepest basin sounding across ~14,338,560 acres
Refreshing (60–70°F) · Cool swim · Moderate comfort
NOAA GLERL GLSEA surface temperature at 43.080, -87.851 · Oct 8, 12:00 PM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Thu, Oct 8, 2026 | 8.01 | -0.10 ft | Provisional |
| Wed, Oct 7, 2026 | 8.11 | -0.08 ft | Provisional |
| Tue, Oct 6, 2026 | 8.19 | -0.05 ft | Provisional |
| Mon, Oct 5, 2026 | 8.24 | -0.01 ft | Provisional |
| Sun, Oct 4, 2026 | 8.25 | 0.00 ft | Provisional |
| Sat, Oct 3, 2026 | 8.25 | +0.02 ft | Provisional |
| Fri, Oct 2, 2026 | 8.23 | +0.11 ft | Provisional |
| Thu, Oct 1, 2026 | 8.12 | +0.06 ft | Provisional |
| Wed, Sep 30, 2026 | 8.06 | -0.06 ft | Provisional |
| Tue, Sep 29, 2026 | 8.12 | -0.09 ft | Provisional |
| Mon, Sep 28, 2026 | 8.21 | -0.04 ft | Provisional |
| Sun, Sep 27, 2026 | 8.25 | -0.11 ft | Provisional |
| Sat, Sep 26, 2026 | 8.36 | -0.14 ft | Provisional |
| Fri, Sep 25, 2026 | 8.50 | — | Provisional |
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Fair for swimming (59/100), from 5 available inputs. Supporting this: 0% chance of precipitation. Wind 15 mph from the south. Working against it: Measured water temperature 62°F. Provisional data. Confidence is moderate (77%) because some inputs are unavailable or older than ideal.