Flood Warning Issued for Osage County, Kansas

Source: NOAA · Osage County, Kansas

A Flood Warning is in effect for Osage County, Kansas, due to expected minor flooding on Salt Creek near Lyndon, with river levels forecasted to rise above flood stage.

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

This notice was issued by NOAA on May 6, 2026 and geographically references Osage 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 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, Osage) 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

The National Weather Service (NWS) Topeka KS has issued a Flood Warning. This alert is effective from April 27, 2026, at 7:35 AM CDT until April 28, 2026, at 3:46 AM CDT.

Affected Areas

The warning affects Osage County in Kansas, specifically Salt Creek near Lyndon.

What You Should Do

Motorists should not attempt to drive around barricades or drive cars through flooded areas.

Expected Conditions

Minor flooding is forecast, with the river expected to rise above the flood stage of 10.0 feet to a crest of 12.3 feet. At 10.0 feet, minor low land flooding begins in farm fields just west of the Highway 75 bridge. The current stage is 6.8 feet.

Timeline

The alert is effective from April 27, 2026, at 7:35 AM CDT, with onset at 10:35 AM CDT on the same day. It expires on April 27, 2026, at 11:00 PM CDT and ends on April 28, 2026, at 3:46 AM 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 Osage County, Kansas, due to expected minor flooding on Salt Creek near Lyndon, with river levels forecasted to rise above flood stage.
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 Osage 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.