Flood Warning Issued for Upper Michigan Counties

Source: NOAA · Western and Central Upper Michigan

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

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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 Baraga, Houghton, Iron, and Marquette counties in Upper Michigan until 6:30 AM EDT on April 18, 2026, due to rain and snowmelt causing flooding.

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

This notice was issued by NOAA on April 26, 2026 and geographically references Western and Central Upper 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, Flood Warning, Upper Michigan) 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.

Alert Details

A Flood Warning has been issued by NWS Marquette MI. It is effective from 12:31 AM EDT on April 18, 2026, until 6:30 AM EDT on the same day.

Affected Areas

The warning affects portions of central Upper and western Upper Michigan, specifically Baraga, MI; Houghton, MI; Iron, MI; and Marquette, MI. Some locations that may experience flooding include Covington, U.S. 141 between Covington and Amasa, Alberta, Three Lakes, Sidnaw, King Lake, Ned Lake, Canyon Falls, Bone Lake, Herman, Watton, and Craig Lake State Park.

What You Should Do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles, so avoid driving through flooded areas.

Expected Conditions

Flooding caused by rain and snowmelt is expected. Between 0.5 and 1.25 inches of rain have fallen, with additional rainfall amounts up to 0.5 inches possible. Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring.

Timeline

The alert is effective from 12:31 AM EDT on April 18, 2026, and will expire at 6:30 AM EDT on April 18, 2026.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
A Flood Warning is in effect for Baraga, Houghton, Iron, and Marquette counties in Upper Michigan until 6:30 AM EDT on April 18, 2026, due to rain and snowmelt causing flooding.
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 Western and Central Upper 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.