Flood Warning Issued for Miami County, Kansas

Source: NOAA · Miami County, Kansas

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 the Marais Des Cygnes River at Osawatomie affecting Miami County from late Tuesday night to Thursday afternoon.

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

This notice was issued by NOAA on June 15, 2026 and geographically references Miami County, 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 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, Miami County) 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 Kansas City/Pleasant Hill MO. The alert is effective from May 18, 2026 at 8:13 PM CDT, with onset at 4:49 AM CDT on May 20, 2026, and expires May 19, 2026 at 8:15 AM CDT.

Affected Areas

The warning covers Miami County, Kansas, specifically the Marais Des Cygnes River at Osawatomie.

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. The river is expected to rise above flood stage early Wednesday morning to a crest of 28.4 feet Wednesday morning before falling below flood stage early Wednesday afternoon. Flood stage is 28.0 feet. At 7:00 PM CDT Monday the stage was 13.5 feet.

Timeline

The alert is in effect from late Tuesday night to Thursday afternoon, ending May 21, 2026 at 2:00 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 the Marais Des Cygnes River at Osawatomie affecting Miami County from late Tuesday night to Thursday afternoon.
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 Miami County, 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.