Flood Warning Issued for Miami and Linn Counties in Kansas

Source: NOAA · Southeastern Kansas

A Flood Warning is in effect for Miami and Linn Counties in Kansas until April 29, 2026, with minor flooding expected along the Marais Des Cygnes River.

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

This notice was issued by NOAA on May 5, 2026 and geographically references Southeastern Kansas. 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 regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

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, Kansas) 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 the National Weather Service (NWS) Kansas City/Pleasant Hill MO. It is effective starting from April 26, 2026, at 8:43 PM CDT.

Affected Areas

The warning affects Miami County and Linn County in Kansas, specifically along the Marais Des Cygnes River at Osawatomie, La Cygne, and near Trading Post. It also impacts Bates County in Missouri.

What You Should Do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Expected Conditions

Minor flooding is forecast. At Osawatomie, the river stage is expected to rise above the 28.0-foot flood stage to a crest of 30.5 feet early Tuesday morning, April 28, 2026. At 28.0 feet, low-lying areas begin to flood; at 31.0 feet, 347th Road or Main Street east of Highway 169 is under water.

Timeline

The warning is effective from Monday afternoon, April 27, 2026, at 5:17 PM CDT, and ends on Wednesday evening, April 29, 2026, at 7:35 PM CDT.

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 Miami and Linn Counties in Kansas until April 29, 2026, with minor flooding expected along the Marais Des Cygnes River.
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 Southeastern Kansas. 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.