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Event

Lakes Michigan–Huron remain above average at the end of June 1991

Also June 1991 Great Lakes level report

Draft — sources verified, prose evolving

Locator map: Beaver Island archipelago highlighted within the Beaver Island archipelago
Took place at Beaver Island archipelagoLocator plate © OpenStreetMap contributors (ODbL 1.0); depths NOAA; names USGS GNIS. How the plates are drawn.
TypeEvent
Date1991-06
WithinBeaver Island archipelago
ErasModern era
On this page
Locator map: Beaver Island archipelago highlighted within the Beaver Island archipelago
Took place at Beaver Island archipelagoLocator plate © OpenStreetMap contributors (ODbL 1.0); depths NOAA; names USGS GNIS. How the plates are drawn.
Event
Date
1991-06
Kind
Observation
Where
Beaver Island archipelago
Eras
Modern era
Concepts
hydrologyenvironmentmaritimecommunication
Within
Beaver Island archipelago

Summary

The July 1991 issue reports Lakes Michigan–Huron at 578.86 feet at the end of June, above chart datum and the long-term June average, with a forecast of little change through the end of July.

Evidence limits

This is a reprinted regional bulletin, not a Beaver Island shoreline gauge series or hydrologic reanalysis.

Sources

  1. Reports Lakes Michigan–Huron at 578.86 feet at the end of June, 25 inches above chart datum, about six inches above the prior year, and a June mean about two inches above the long-term average; the forecast expected the July level to remain about the same. The holding institution's portal restricts automated access; the archive holds a copy of this issue and can provide it on request.
    data1 · beaver-island-archive · beaver_beacon · 1991-07_Beaver-Beacon
  2. The held twenty-two-page issue scan confirms the lake-level report.
    data1 · beaver-island-archive · scans · beaver_beacon · issues · 1991-07_Beaver-Beacon

Added 4 August 2026. Recent changes

Cite this article

Beaver Island Archive, “Lakes Michigan–Huron remain above average at the end of June 1991”, https://beaverislandarchive.org/events/great-lakes-michigan-huron-level-june-1991/, accessed [date], citing Beaver Beacon, July 1991, “LAKE LEVELS.” (and 1 further source listed on the page).

Last revised 2026-08-04. Fill in [date] with the date you read it — this page is static and cannot know that.

BibTeX for “Lakes Michigan–Huron remain above average at the end of June 1991”RIS for “Lakes Michigan–Huron remain above average at the end of June 1991”