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The linked gauge for Burt Lake reported 578.83 ft (relative to IGLD 1985) at its latest stored observation on Oct 10, 2026, on a falling 30-day trend (-0.41 ft).
Local gage height: 578.83 ft
-0.41 ft net change over past 30 days
Deepest basin sounding across ~17,120 acres
Brisk (50–60°F) · Cold shock risk · Wetsuit recommended
Mackinaw City, MI · Oct 10, 6:36 PM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Fri, Oct 9, 2026 | 578.81 | -0.02 ft | Provisional |
| Thu, Oct 8, 2026 | 578.83 | -0.09 ft | Provisional |
| Wed, Oct 7, 2026 | 578.92 | -0.05 ft | Provisional |
| Tue, Oct 6, 2026 | 578.97 | +0.16 ft | Provisional |
| Mon, Oct 5, 2026 | 578.80 | -0.19 ft | Provisional |
| Sun, Oct 4, 2026 | 578.99 | +0.07 ft | Provisional |
| Sat, Oct 3, 2026 | 578.92 | +0.04 ft | Provisional |
| Fri, Oct 2, 2026 | 578.88 | -0.11 ft | Provisional |
| Thu, Oct 1, 2026 | 578.99 | -0.06 ft | Provisional |
| Wed, Sep 30, 2026 | 579.04 | +0.13 ft | Provisional |
| Tue, Sep 29, 2026 | 578.91 | +0.03 ft | Provisional |
| Mon, Sep 28, 2026 | 578.88 | 0.00 ft | Provisional |
| Sun, Sep 27, 2026 | 578.88 | -0.03 ft | Provisional |
| Sat, Sep 26, 2026 | 578.91 | — | Provisional |
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Poor for swimming (51/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 1% chance of precipitation. Working against it: Measured water temperature 58°F from a representative gauge 21.4 mi away. Provisional data. Cold water hazard: thermal protection recommended below 60°F. Water temperature is 58°F (below 60°F). Immersion requires thermal protection. Confidence is moderate (75%) because some inputs are unavailable or older than ideal.