- Date
- 1991-04
- Kind
- Observation
- Where
- Beaver Island archipelago
- Eras
- Modern era
- Concepts
- hydrologyenvironmentmaritimecommunication
- Within
- Beaver Island archipelago
Summary
The May 1991 issue reports Lakes Michigan–Huron at 578.58 feet at the end of April, continuing their seasonal rise and standing above the prior year and long-term April average.
Evidence limits
This is a reprinted regional forecast and measurement, not a Beaver Island shoreline gauge series or hydrologic reanalysis.
Sources
- Reports above-average April basin precipitation and Lakes Michigan–Huron at 578.58 feet at month’s end, 21 inches above chart datum, 11 inches above the prior year, and 6 inches above March; the monthly mean was about 2 inches above the long-term April average. It summarizes the forecast for continued seasonal rise. 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 · 1991-05_Beaver-Beacon
- The held twenty-two-page issue scan confirms the printed lake-level report.data1 · beaver-island-archive · scans · beaver_beacon · issues · 1991-05_Beaver-Beacon
Added 4 August 2026. Recent changes
Cite this article
Beaver Island Archive, “Lakes Michigan–Huron continue seasonal rise in April 1991”, https://beaverislandarchive.org/events/great-lakes-michigan-huron-level-april-1991/, accessed [date], citing Beaver Beacon, May 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 continue seasonal rise in April 1991”RIS for “Lakes Michigan–Huron continue seasonal rise in April 1991”