Flood Warning Issued for Marquette and Surrounding Counties in Michigan

Source: NOAA · Upper Peninsula Michigan

If you are in immediate danger, call emergency services now.

For real-time, official alerts and instructions for your exact location, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia) as applicable. This article is a data summary, not a substitute for the issuing agency's live warning.

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

A Flood Warning is in effect for Marquette, Iron, Houghton, and Baraga Counties in Michigan due to rising river levels from heavy rain and snowmelt, with minor flooding expected through early next week.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on April 23, 2026 and geographically references Upper Peninsula Michigan. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Weather Alerts - determines the warning protocol behind it, which shapes what protective action (seeking shelter, following evacuation orders if issued, monitoring official updates) is recommended and which agency holds authority to issue or cancel it.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, FloodWarning, MarquetteMI) map to related alerts in the same area of risk - browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Flood Warning in Michigan

Alert Details

The Flood Warning has been issued by NWS Marquette MI, a NOAA agency. It is effective from April 17, 2026, at 1:39 PM EDT until April 21, 2026, at 2:00 AM EDT.

Affected Areas

The warning affects Marquette County, including the East Branch Escanaba River at Gwinn and the Middle Branch Escanaba River at Humboldt; Iron County, with the Paint River at Crystal Falls; and Houghton and Baraga Counties, with the Sturgeon River near Chassell.

What You Should Do

Turn around and do not drive through flooded roads, as most flood deaths occur in vehicles. Additional information is available at www.weather.gov/marquette. The next statement will be issued on Saturday morning at 9:45 AM EDT / 8:45 AM CDT.

Expected Conditions

Minor flooding is occurring and forecast. For the East Branch Escanaba River at Gwinn, the river stage is at 7.2 feet, with bankfull stage at 6.0 feet and flood stage at 7.0 feet. It is expected to rise to 7.9 feet, where water will reach the bottom girder of the M-35 bridge.

Timeline

The alert is effective from April 17, 2026, at 1:39 PM EDT, with onset at the same time, and it expires on April 18, 2026, at 9:45 AM EDT, but ends on April 21, 2026, at 2:00 AM EDT.

Original source: NOAA Official Notice ↗

All Weather Alerts →

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
A Flood Warning is in effect for Marquette, Iron, Houghton, and Baraga Counties in Michigan due to rising river levels from heavy rain and snowmelt, with minor flooding expected through early next week.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Upper Peninsula Michigan. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.